1. finance

    Calculate the rate of interest compounded yearly (j) equivalent to 8% pa compounded quarterly. Give your answer as a percentage per annum to 3 decimal places.

    asked by Michelle on April 24, 2010
  2. statistics

    mean cholesterol is 175mg/dl..standard deviation =20mg/dl assume approx normal distribution ..is varied. what percentage has a cholesterol level above 155mg/dl?

    asked by michelle on July 7, 2012
  3. statistics

    suppose that iq scores have a bell-shaped distribution with a mean of 97 and a standard deviation of 17. using the empirical rule, what percentage of iq scores are greater than 46? please do not round your answer.

    asked by Joanna on June 24, 2018
  4. Chemistry

    What is the percentage yield for a reaction if you predict the formation of 21 grams of C6H12 and actually recomvered only 3.8 grams? is the answer 18% 3.8g/21g x 100% pls verify.

    asked by Devin on October 17, 2010
  5. physic

    1) A 2 . 3 kg object moving at 7.3 m/s collides inelastically with a 4.0 kg object which is initially at rest. What percentage of the initial kinetic energy of the system is lost during the collision?

    asked by quaviz on December 6, 2012
  6. Chemistry

    A 3.000gram sample of a hydrate compound containing Co, C2O4, and H2O was combusted to give 1.316g of Co3O4. What is the percentage of Cobalt in the original sample?

    asked by Jessica on June 6, 2013
  7. Statistics

    What is the percentage of immigrants living here in the U.S. legally? Of these people, how many are naturalized? I've tried looking this up, but either the article was made without the full 2012 census or it talked about illegal immigrants.

    asked by Chipe Martinez on October 20, 2013
  8. Math

    If 72% of Americans have straight hair, 76% have brown eyes, 87% are high school graduates, and 88% are less than 6 feet tall, what is the minimum percentage of Americans who have all four attributes?

    asked by Theo on January 31, 2012
  9. Chemistry

    N2(g) + 3H2(g) -> 2NH3(g) How many grams of ammonia are formed from 14.0 grams of nitrogen? 14/2 = 7 grams of ammonia

    asked by Anonymous on November 4, 2016
  10. Chemistry

    20.When black gunpowder explodes, potassium nitrate, carbon, and sulfur react with each other to form nitrogen, carbon dioxide, and potassium sulfide. If thee original mixture contains 50.0 g of potassium nitrate, what is the total volume of the gases

    asked by Ali on May 15, 2008
  11. science

    A mixture of nitrogen gas, hydrogen gas and ammonia gas reacts by: N2(g) + 3H2(g) = 2NH3(g) If the total pressure in the reaction vessel is 50.0 atm ans the equilibrium mixture contains by volume: N2= 96.143% H2= 0.3506% NH3= 3.506% what is the equilibrium

    asked by Marie on April 17, 2015
  12. Chemistry

    The following two solutions were combined and mixed well: 150.00 mL of a 3.500 M iron(¡¡¡) nitrate solution and 760.00mL of a 1.600M magnesium nitrate solution. 20.00mL of the final solution was transferred with a pipette into an empty 250.00mL

    asked by Mantsha on April 29, 2014
  13. Chemìstry

    The following two solutions were combined and mixed well: 150.00 mL of a 3.500 M iron(¡¡¡) nitrate solution and 760.00mL of a 1.600M magnesium nitrate solution. 20.00mL of the final solution was transferred with a pipette into an empty 250.00mL

    asked by Anonymous on April 29, 2014
  14. Chemistry

    The iodide ion can be oxidized in an acidic solution by hydrogen peroxide. One proposed mechanism for the reaction is as follows: Step 1: H2O2 (aq) + I-(aq) → H2O (l) + OI-(aq) slow Step 2: H+(aq) + OI-(aq) → HOI(aq) fast Step 3: HOI (aq) + H+(aq) +

    asked by Neha on November 13, 2011
  15. Chemistry

    Find the volume, in L, of 100g gas mixture containing 10.0 mol% hydrogen in nitrogen at 30.0C and 5.00 atm. Use the avg molecular wt. what is the molar concentration of hydrogen, in mol/L, in the gas mixture? what is the average mass denisity in g/L

    asked by Simon on July 26, 2012
  16. Chemistry

    Automotive airbags inflate when sodium azide, NaN3, rapidly decomposes to its constituent elements according to the chemical equation, 2 NaN3 -> 2 Na + 3 N2. How many grams of nitrogen are produced when 1000 milligrams of sodium azide decomposes?

    asked by Sarah on November 25, 2015
  17. chemistry

    A gas mixture contains oxygen and argon at partial pressures of 0.60 atm and 425 mmhg. If nitrogen gas added to the sample increases the total pressure to 1250 torr, what is the partial pressure in torr?

    asked by Jane on April 3, 2011
  18. Chemistry

    Ammonia (NH3) is formed industrially by reacting nitrogen and hydrogen gases. How many liters of ammonia gas can be formed from 13.7L of hydrogen gas at 93.0 degrees Celsius and a pressure of 2.25atm?

    asked by Chris on November 18, 2008
  19. Chemistry

    A gas mixture containing N2 and O2 was kept inside a 2 L container at a temperature of 23 C and a total pressure of 1 atm. The partial pressure of oxygen was .722 atm. How many grams of nitrogen were present in the gas mixture?

    asked by Sara on July 20, 2013
  20. AP Chemistry

    A mineral crystallizes in a cubic closest packed array of oxygen ions with aluminum ions in some of the octahedral holes and magnesium ions in some of the tetrahedral holes. Deduce the formula of this mineral and predict the fraction of octahedral holes

    asked by Angel on November 18, 2009
  21. CHemistry

    Is the charge of nitrogen in N2O +1? If you are talking about the oxidation state of N in N2O, yes, it is +1. Charge, to me, implies that N2O is an ionic compound and it is covalent, not ionic.

    asked by Alyssa on October 26, 2006
  22. science

    At a pressure of 2.00 atm, a sample of air consists of 0.20 moles of nitrogen, 0.65 moles of oxygen and 0.15 moles of argon. What is the partial pressure of the oxygen?

    asked by Mickeykalle on October 30, 2012
  23. Chemistry

    Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitrogen and oxygen: 4KNO3(s)--> 2K2O(s) + 2N2(g) + 5O2(g) To produce 56.6 kg of oxygen, how many (a) moles of KNO3 must be heated? (b) Grams of KNO3 must must heated?

    asked by Telicia on September 28, 2009
  24. Chemistry

    give the balanced equation for: Liquid nitric acid decomposes to reddish brown nitrogen dioxide gas, liquid water, and oxygen gas. the equation i got was HNO3 --> NO2+ H2O+ O2 is that right? i haven't balanced it yet

    asked by Anonymous on June 8, 2010
  25. Chemistry

    Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitrogen and oxygen: 4KNO3(s)--> 2K2O(s) + 2N2(g) + 5O2(g) To produce 56.6 kg of oxygen, how many (a) moles of KNO3 must be heated? (b) Grams of KNO3 must must heated?

    asked by Telicia on September 29, 2009
  26. Chemistry

    Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitrogen and oxygen: 4KNO3(s)--> 2K2O(s) + 2N2(g) + 5O2(g) To produce 56.6 kg of oxygen, how many (a) moles of KNO3 must be heated? (b) Grams of KNO3 must must heated?

    asked by B on June 17, 2012
  27. Chemistry

    A 20.29 g sample of impure MgCO3 is completely decomposed at 1000oC in previously evacuated 2.0 L reaction vessel. After the reaction was complete the solid residue had a mass of 15.9 g. Assume that only MgCO3 could produce gas CO2 what percent of original

    asked by Jordan on December 3, 2008
  28. finance

    Here are data on $1,000 par value bonds issued by Microsoft, Ford, and Xerox at the end of 2008. Assume you are thinking about buying these bonds as of January 2009. Answer the following questions: a.) Calculate the values of the bonds if your required

    asked by Yatie on August 29, 2015
  29. Economics

    Assume that the gross national debt initially is equal to $3 trillion and the federal government then runs a deficit of $300 billion. i. What is the new level of gross national debt? Gross national debt is the total amount outstanding in public and private

    asked by Doret on January 8, 2011
  30. mamagement operation

    The city of Beljing is studying it Toursits Information Center. The Information collected about tourists arriving at the center is: interval time ( time between Arrivals)in minutes:(3,4,5,6,7)Probabilty percentage(20.2,23.6,31.2,18.4,6.6) The tourist

    asked by cindy on September 12, 2011
  31. chemistry

    In the presence of a tungsten catalyst at high temperature, the decomposition of ammonia to nitrogen and hydrogen is a zero order process. If the rate constant at a particular temperature us 3.7x10^-6 mol. How long will it take for an ammonia concentration

    asked by court on March 26, 2012
  32. chenistry

    this is confusing me so bad!! Nitrogen gas reacts with hydrogen gas to produce ammonia by the following equation: N2(g)+3H2(g)→2NH3(g) If you have 5.79g of H2, how many grams of NH3 can be produced? I said, 2/3 *5.79 = 3.86 but that's not the answer.. it

    asked by Jennie on March 3, 2015
  33. College Chemistry

    A 38 L gas tank at 35 Celsius has nitrogen at a pressure of 4.65 atm. The contents of the tank are transferred without loss to an evacuated 55.0L tank in a cold room where the temperature is 4 Celsius. What is the pressure of the tank??

    asked by Smith on March 2, 2010
  34. Chemistry

    It is known that 1.0 L of nitrogen gas reacts with 3.0 L estequilometricamente gas ...? Edit Hydrogen to form 2.0 L of ammonia gas in the same conditions of pressure and temperature. a)What is the final volume of gas? b)5.0 L of N2 + 9.0 L H2. What final

    asked by Anonymous on February 12, 2016
  35. chemistry

    N2H4 + O2 ----> What is the correct product for this equation N2 + H2O or NO2 + H2O?? Then, what is the correct oxidizer and reducer? I think oxygen is the oxidizer and nitrogen is the reducer and hydrogen isn't in any of these categories? Thank you!

    asked by Anonymous on March 20, 2018
  36. chemistry

    What is formed at the anode and cathode when the following solutions are electrolysed? sodium iodide copper II chloride sodium sulphate NaOH HCl magnesium nitrate also is this true: if the metal in the compound is higher in the reactivity series than

    asked by Nabiha on November 8, 2009
  37. chemistry

    What is formed at the anode and cathode when the following solutions are electrolysed? sodium iodide copper II chloride sodium sulphate NaOH HCl magnesium nitrate also is this true: if the metal in the compound is higher in the reactivity series than

    asked by Nabiha on November 8, 2009
  38. chemistry

    The diving atmosphere used by the U.S. Navy in its undersea Sea-Lab experiments consisted of 0.036 mole fraction O2 and 0.058 mole fraction N2, with helium (He) making up the remainder. What are the masses of nitrogen, oxygen, and helium in a 7.22-g sample

    asked by Nagaa on December 20, 2010
  39. chemistry

    Write the rate equation for the relative disappearance of dinitrogen pentoxide. Write the rate equations for the relative appearance of nitrogen dioxide and oxygen gas. When writing the equations, remember to think about how many NO2 and O2 molecules are

    asked by Anonymous on April 26, 2012
  40. Chemistry

    6Li(s) + N2(g) 2Li3N(s) a) What mass of lithium is required to produce 0.575 g of Li3N in the balanced reaction? b) What mass of nitrogen is required for the reaction? ------------------------------------------- I tried dimensional analysis in a couple

    asked by Brian on March 8, 2015
  41. SCIENCE

    From the following data ,calculate the percentage of KCl in sample of chloride weight of the sample 0.1865, volume of AgNOS required 26.50mL and Ag of AgNO3 =0.008700gram

    asked by NELLY on January 16, 2015
  42. statistics

    assume that a set of test scores is normally distributed with a mean of 100 and a standard devaiton of 20. Use the 68-95-99.7 rule to find the following quantities: a. percentage of scores greater than 120

    asked by Christine on May 17, 2010
  43. math

    A basketball player with a free throw shooting percentage of 60% gets fouled and goes to the line to shoot two free throws. What are the odds in favor of her making her first shot?

    asked by Carli on November 5, 2009
  44. ststistics

    A sample of 3000 observations has a mean of 86 and a standard deviation of 13. The distribution is bell-shaped. Using the empirical rule, find what percentage of the observations fall in the intervals

    asked by myself on September 19, 2013
  45. Math

    The price of a technology stock was $9.83 yesterday. Today, the price fell to $9.70 . Find the percentage decrease. Round your answer to the nearest tenth of a percent.

    asked by Samantha on June 11, 2013
  46. math208

    The price of a technology stock was yesterday. Today, the price rose to . Find the percentage increase. Round your answer to the nearest tenth of a percent

    asked by gina morris on November 8, 2010
  47. nursing

    The percentage of people under 30 is the lowest it has ever been in recorded history for the U.S. What do you feel could be done to change the publics perception of nursing. What trends in the nursing profession do you consider troubling, what gives you

    asked by april on October 1, 2008
  48. Maths

    The sides of a triangle are 4.53cm, 5.70cm and 6.21cm. By what percentage (correct to two decimal places) is the longest side is greater than the shortest side Working Out please

    asked by Math's Noob on January 7, 2012
  49. Math Personal Finance

    Assume an investment of $7000 earns an APR (Annual Percentage Rate) of 6% compounded monthly for 18 months. The money in your account after 18 months will be $______.

    asked by Alexis on June 8, 2014
  50. Math Personal Finance

    What is the present value of an investment that will be worth $2000 at the end of five years? Assume an APR (Annual Percentage Rate) of 6% compounded monthly. The present value is $_____ .

    asked by Alexis on June 8, 2014
  51. Mathematics

    An old table in a furniture store is marked down by 10% from its previous price on five separate occasions. What is the total percentage reduction in price correct to two decimal places

    asked by Rachael on February 21, 2017
  52. Computers

    Your company wants to implement a 5-year rotation plan of your computing devices. What percentage of your computer fleet will you have to replace every year in order to achieve this? A. 5 B. 10 C. 20 D. 50 Is the answer C 20

    asked by Anthony on January 10, 2014
  53. General chemistry

    The first-order reaction, SO2Cl2---> SO2 + Cl2, has a rate constant equal to 2.20 x 10^-5 s^-1 at 593 K. What percentage of the initial amount SO2Cl2 will remain after 6.00 hours?

    asked by hahaha on April 26, 2010
  54. statics

    Using the 68-95-99.7rule. Assume that a set of test scores is normally distributed with a mean of 80 and a standard deviation of 25. Use the 68-95-99.7 rule to find the following quantities. percentage of scores greater than 105 is

    asked by Nisa on January 24, 2016
  55. profit&loss mathematics

    A sells to B at a gain of 20%,B sells to C at a price A paid.what does B lose as a percentage? Plz show step with neat algebras i tried working it out i become angry with the question

    asked by pooo on January 4, 2017
  56. math

    a government bod pays 100 in a year at a discount rate of 5%(assume simple interest). How much did the bond cost? What is the annual percentage rate? Should it be more or less than 5%?

    asked by leah on June 2, 2011
  57. Math

    The price of a technology stock has risen to $9.68 today. Yesterday's price was $9.57. Find the percentage increase. Round your answer to the nearest tenth of a percent

    asked by Rose on June 2, 2017
  58. maths

    if a regular payment is made quarterly into sinking fund,it accrues to $18258.53 after ten years.What is the annual percentage rate paid by the fund?

    asked by girma on April 18, 2012
  59. Math

    The scores on the GRE are normally distributed with a mean of 541 and a standard deviation of 89. Use the 68-95-99.7 rule to find the percentage of people taking the test who score between 363 and 541

    asked by Katelyn on April 14, 2017
  60. chemistry

    The first-order reaction, SO2Cl2 ¨ SO2 + Cl2, has a rate constant equal to 2.20 ~ 10-5 s-1 at 593 K. What percentage of the initial amount of SO2Cl2 will remain after 6.00 hours?

    asked by JOSEPH on September 27, 2010
  61. physics

    A watch manufacturer claims that its watches gain or lose no more than 8 s in a year. How accurate is this watch, expressed as a percentage? Express your answer using one significant figure.

    asked by larry on September 5, 2015
  62. Chemistry

    Taking into account the "Second Law of thermodynaics", what is the maximum percentage of heat at 700 C that can be converted into electricity if the waste heat was produced as steam at 100 C?

    asked by Devin Boutte on November 21, 2011
  63. Chemistry 102

    The average human body contains 6.00 L of blood with a Fe2+ concentration of 2.00×10−5 M . If a person ingests 6.00 mL of 16.0 mM NaCN, what percentage of iron(II) in the blood would be sequestered by the cyanide ion?

    asked by Kyle on November 16, 2015
  64. Chemistry

    Taking into account the "Second Law of thermodynaics", what is the maximum percentage of heat at 700 C that can be converted into electricity if the waste heat was produced as steam at 100 C?

    asked by Devin Boutte on November 20, 2011
  65. Chemistry

    Suppose you prepare a sample of paracetamol by reacting 10.0g of p-aminophenol with 15.0g of acetic anhydride. You obtain 10.8g of pure paracetamol as a product. What is the percentage yeild of the reaction?

    asked by Neo on May 30, 2017
  66. Maths

    Evelyn has a ribbon 420 cm long. She uses 216 cm to decorate a present., What percentage of ribbon is left> Express your answer correct to 1 decimal place.

    asked by Zayn on October 4, 2012
  67. Math

    A basketball player with a free throw shooting percentage of 60% gets fouled and goes to the line to shoot two free throws. What are the odds in favor of her making her first shot?

    asked by Jenny on October 11, 2009
  68. Math

    The price of a technology stock has risen to $9.68 today. Yesterday's price was $9.57. Find the percentage increase. Round your answer to the nearest tenth of a percent

    asked by Rose on June 1, 2017
  69. math 101

    assume that a set of test scores is normally distributes with a mean of 120 and a standard deviation of 25. use the 68-95-99.7 rule to find the percentage of scores greater tha 145

    asked by amy on July 16, 2016
  70. CHEMISTRY

    The first-order reaction, SO2Cl2 ¨ SO2 + Cl2, has a rate constant equal to 2.20 ~ 10-5 s-1 at 593 K. What percentage of the initial amount of SO2Cl2 will remain after 6.00 hours?

    asked by JOSEPH on September 27, 2010
  71. percentage

    Evelyn has a ribbon 420cm long.She uses 216cm to decorate a present.what percentage of the ribbon is left?Express your answer correct to 1 decimal place

    asked by Da S on February 12, 2012
  72. Math

    Katie makes 65% of her shots from the free throw line. Can you determine how many consecutive free throws she must make in order to increase her percentage to 68%? Explain.

    asked by BOB on July 2, 2016
  73. Calculus

    The balance in an account triples in 20 years. Assuming that interest is compounded continuously, what is the annual percentage rate? I found the equation: y=e^(xln3/20) assuming that y0=1 I got 5.64%, is that right?

    asked by Gary on December 28, 2015
  74. American Gov't

    Do federal grants represent an appropriate percentage of the total federal budget and gross domestic product (GDP)? Explain, providing at least one (1) supporting fact.

    asked by Angela on October 16, 2015
  75. Math

    The scores on the GRE are normally distributed with a mean of 541 and a standard deviation of 89. Use the 68-95-99.7 rule to find the percentage of people taking the test who score between 363 and 541

    asked by Scott on April 17, 2017
  76. math

    a company borrowed $3100. it must make monthly payments of $178.37 for 18 months to pay off the loan. Ust the constant ratio formula to find the annual percentage rate...thanks for helping me....kk

    asked by kk on September 9, 2011
  77. Military History

    Two questions: 1. By 1864, only two Confederate ports remained open and actively participating in blockage running. One of these was: Mobile Charleston Savannah Boston 2. What percentage of Union army enlistments came from the draft? 9 13 15 10

    asked by Angie on August 28, 2013
  78. Math

    Scores on the GRE​ (Graduate Record​ Examination) are normally distributed with a mean of 554 and a standard deviation of 120. Use the 68-95-99.7 Rule to find the percentage of people taking the test who score between 434 and 674

    asked by Katelyn on April 21, 2017
  79. Chemistry

    3. The Haber¡VBosch process for fixation of nitrogen is one of the more important chemical reactions ever invented. Without the invention of this process, which is used to make ammonia for fertilizer, the world¡¦s population would not be as large as it

    asked by Chastity on March 14, 2016
  80. Chemistry

    3. The Haber–Bosch process for fixation of nitrogen is one of the more important chemical reactions ever invented. Without the invention of this process, which is used to make ammonia for fertilizer, the world’s population would not be as large as it

    asked by TomR on September 12, 2014
  81. chemistry

    I would really like help for this question ASAP! pleasee! I thank you ahead of time. The question refers to an experiment using equal volumes of O2 gas and three other gases "X", "Y", "Z", at the same temperature and pressure. If the respective masses are:

    asked by md. on June 10, 2011
  82. chemistry

    I would really like help for this question ASAP! pleasee! I thank you ahead of time. The question refers to an experiment using equal volumes of O2 gas and three other gases "X", "Y", "Z", at the same temperature and pressure. If the respective masses are:

    asked by md. on June 10, 2011
  83. Chem 27

    An antacid tablet weighing 3.084 g was dissolved and diluted to 100.0 mL in a volumetric flask. A 25.00-mL aliquot was removed and treated with sufficient 8-hydroxyquinoline to precipitate all of the aluminum and magnesium. After proper collection and

    asked by Rika on January 16, 2012
  84. chemistry

    What is the partial pressure of CO2 (torr)in exhaled breathe at 37 degree C. if the partial pressure of O2 is 116 (torr) and that of Nitrogen is 569 (torr). Assume atmospheric pressure is 1 atm. kindly help me with this problem

    asked by Erin 12 on November 2, 2012
  85. Physics

    A 50.0 kg parachutist jumps out of an airplane at a height of 1.00 km. The parachute opens, and the jumper lands on the ground with a speed of 5.00 m/s. By what amount was the jumper's mechanical energy reduced due to air resistance during this jump? so,

    asked by Becca on December 5, 2006
  86. Chemistry 2

    Pure nitrosyl bromide, NOBr at 0.762 M is placed into a sealed vessel and heated up to 400 K. When the system reaches equilibrium, it is found that 65.1% of the nitrosyl bromide has decomposed to nitrogen monoxide and bromine. Determine Kc for this

    asked by Matt on September 8, 2014
  87. chemistry

    Nitric acid can be produced by the reaction of gaseous nitrogen dioxide with water. 3 NO2(g) + H2O(ℓ) −→ 2 HNO3(ℓ) + NO(g) If 900 L of NO2 gas react with water, what volume of NO gas will be produced? Assume the gases are measured under the same

    asked by Anonymous on December 3, 2016
  88. Chemistry

    Nitric acid can be produced by the reaction of gaseous nitrogen dioxide with water. 3 NO2(g) + H2O(ℓ) −→ 2 HNO3(ℓ) + NO(g) If 916 L of NO2 gas react with water, what volume of NO gas will be produced? Assume the gases are measured under the same

    asked by Anonymous on May 1, 2015
  89. chemistry

    assuming the valencies of hydrogen nitrogen and carbon are 1,3,and 4. i need to draw a structural formulae for hydrogen cyanide and cyanogen that are consistant with these values H(triple bond)C-N N(triple bond)C-C(triple bond)N

    asked by notty on March 15, 2007
  90. chem PLEASE HELP

    A Nitrox II gas mixture for scuba diving contains oxygen gas at 50atm and nitrogen gas at 98atm . What is the total pressure, in atm, of the scuba gas mixture?

    asked by Anonymous on July 18, 2013
  91. chemistry

    a process stream containing acetone vapour in nitrogen enters a cooler compressor at 65 degree celcius and 1 atm, with relative saturation of acetone equal to 50%. the gas is compressed and cooled to 20 degree celcius to recover 95% of acetone as a liquid.

    asked by alicia on March 17, 2011
  92. Chemistry

    Which of the following is a stronger lewis base: cyanide ion or dicarbide ion? I'm assuming it is the dicarbide ion as it is more negatively charged and a compound consisting of 2 carbons is larger and therefore more likely to lose electrons than something

    asked by Kevin on April 23, 2016
  93. Chemistry 11th

    Solid ammonium nitrate breaks down into nitrogen, water vapor, and oxygen. If there was 300g of the solid and the reaction happened under STP find the total volume of the products. (translating words to eqns., balancing eqns., understanding what STP means)

    asked by Reyna on June 2, 2010
  94. College Chemistry

    If 69.3g of magnesium chloride were produced from a process with a known yield of 78.3%, find the mass of carbon tetrachloride in grams that was used. Equation: 2CCl4 + MgCrO4 -> 2COCl2 + CrO2Cl2 + MgCl2 I was able to solve it but I just don't understand

    asked by Bach on March 31, 2010
  95. Genera Chemistry

    Nitric oxide (NO) reacts with oxygen gas to form nitrogen dioxide (NO2), a dark-brown gas: 2NO(g) + O2(g) -> 2NO2(g) In one experiment 0.886 moles of NO is mixed with 0.503 moles of O2. Calculate which of the two reactants is the limiting reagent. Please

    asked by Kendra on May 26, 2010
  96. nutrition

    How many grams of nitrogen are contained in a 2,500 kcal diet that provides 15% of the energy as protein? What would be the approximate weight gain of a person who consumes an excess of 500 kcal daily for one month? Which of the following is an FDA

    asked by allison on July 2, 2011
  97. Nutrition

    How many grams of nitrogen are contained in a 2,500 kcal diet that provides 15% of the energy as protein? What would be the approximate weight gain of a person who consumes an excess of 500 kcal daily for one month? Which of the following is an FDA

    asked by allison on July 4, 2011
  98. General Chemistry

    Nitric oxide (NO) reacts with oxygen gas to form nitrogen dioxide (NO2), a dark-brown gas: 2NO(g) + O2(g) -> 2NO2(g) In one experiment 0.886 moles of NO is mixed with 0.503 moles of O2. Calculate which of the two reactants is the limiting reagent. Please

    asked by Kendra on May 24, 2010
  99. chemistry

    When 25 mL of C2H5OH (density 0.80 g.cm-3) is dissolved in water to prepare a 250 mL solution, the density of the solution was found to be 0.950 g.cm-3. Calculate a. Molarity of pure ethanol; b. Molarity of ethanol in the final solution; c. Volume of the

    asked by avni on August 22, 2016
  100. Chemistry-DrBob222

    I got 62.9 mL. Is this correct? I think HCl is the LR. A piece of solid magnesium is reacted with hydrochloric acid to form hydrogen gas: Mg (s) + 2HCl (aq) ---> MgCl2 (aq) + H2 (g) What volume of hydrogen gas (in mL) is collected over water at 25 degrees

    asked by Nevaeh on March 12, 2016