# i need the exat percentage of nitrogen in magnesium nitride

6,975 results, page 42-
## Physics

the top sprinter in the world can reach a terminal speed of 50km/h, in 20m. Assuming the acceleration to be constant, compute the acceleration such an individual experiences, and compare it (in percentage form) to the acceleration of gravity.

*asked by Haylee on December 14, 2015* -
## Chem

The actual heat of formation of MgO is -601.8 kJ/mol. Convert this to kcal/mol and calculate your % error. And list two possible sources of procedural error to account for this percentage.

*asked by Danny on March 19, 2012* -
## chemistry

a solution of an unknown metal chloride (0.08870 g ) was treated with silver nitrate to yield AgCl ( 1.9132 g ). calculate the percentage by mass of chlorine in the unknown chloride

*asked by TROUBLED on October 18, 2011* -
## Math

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

*asked by Rena on January 6, 2011* -
## Chemistry 22

Table salt NaCl and sugar C12H22O11 are accidentally mixed. A 6.00 g sample is burned and 2.90 g of CO2 is produced. What was the mass percentage of the table salt mixture? Could you please show me all the way through if you can?

*asked by Chelsea on October 5, 2013* -
## Personal Finance

Suppose you buy a two-year CD for $10,000 from First Command Bank. The interest earned at maturity is $______. Use the APY (Annual Percentage Yield) from Table 4.1. The Table says APY for this is 3.9%

*asked by Kinsey on June 20, 2016* -
## business statistics

1.to measure how much the cost of some variable changes over time, you would use? 2.if an index number calculation over 8 years with a base value of 100 gave an index for 1993 of 110, what would be the percentage relative for 1993?

*asked by mirjee on January 24, 2010* -
## calculus

Can anyone walk me through the steps of solving either of these problems? 1)Determine the percentage of change of f(x)=e^0.9x at x=15 and x=30 2)For the demand function q=150(245-p^2), find E(p) and determine if the demand is elastic or inelastic (or

*asked by Sally on April 10, 2008* -
## chemistry

a solution of an unknown metal chloride (0.08870 g ) was treated with silver nitrate to yield AgCl ( 1.9132 g ). calculate the percentage by mass of chlorine in the unknown chloride

*asked by TROUBLED on October 18, 2011* -
## Chemistry

A 5g mn sample was dissolved in 100ml water. If the percentage of M (At wt =55g/mol) in the sample is about 5%. What volume is needed to prepare 100ml of approximately 3.0 x 10-3 M solution Who helps for me. The right answer 6.7ml

*asked by Fai on November 5, 2012* -
## Physics

An ideal gas heat engine operates in a Carnot Cycle between temperatures of 266 and 115°C. It absorbs 4250 cal per cycle at 266°C. What is its efficiency as a percentage

*asked by Chelsea on January 31, 2014* -
## Physics

An ideal gas heat engine operates in a Carnot Cycle between temperatures of 266 and 115°C. It absorbs 4250 cal per cycle at 266°C. What is its efficiency as a percentage?

*asked by Riley on February 3, 2014* -
## Chemistry

In my problem i need to find the mass of Ag in AgNO3. I have 3.489g of AgNO3. Help please! Determine the percentage composition from the formula. PercentAg= atomicmassAg/molmassAgNO3 Then, mass Ag= 3.489 * decimal percent above.

*asked by Jason on January 29, 2007* -
## statistics

Identify the type I error and the type II error that is a hypothesis. The percentage of households with more than 1 pet is equal to 65%

*asked by Sharday on August 4, 2013* -
## Algebra (re: %)

Sally took a test with 70 questions and she correctly answered 60 question. What percentage of the questions did she answer correctly?

*asked by Nini on May 21, 2012* -
## math

Emily has a book with 200 pages , she read 150 pages , what's the percentage of books she read?

*asked by kate on November 10, 2017* -
## math

Chris eats 3 slices of a pizza that is cut into 8 equal slices. What percentage of the pizza does he eat?

*asked by jackie on March 1, 2011* -
## Math

In a school, 33% of the students study Biology and 16% study Chemistry. If 9% study both sciences, what percentage do not study either subject?

*asked by Zip on November 28, 2018* -
## Science

If 15% of the radioactive material decays in 5 days, what would be the percentage of amount of original material left after 25 days?

*asked by Anonymous on June 4, 2015* -
## math

Top player's scoring average changes from 20 points per game to 24 points per game. What is the percentage of increase. 1:20% 2:16.7% I think 2??

*asked by reality check on November 4, 2015* -
## Math

A frame around a photo is 5 cm wide. The photograph is 20 cm long and 10 cm wide. What percentage of the entire area is the frame.

*asked by Sally on June 4, 2014* -
## Math

A bag is full of marbles. 10 blue, 11 red, 3 green, 16 yellow. What percentage of marbles are yellow

*asked by Caleb on December 16, 2016* -
## Astronomy

What percentage of the energy budget do electrons occupy? Take the energy budget occupied by matter to be 4.4%. (a) 3.9% (b) 0.1% (c) 0.03% (d) 0.002%

*asked by qwerty on October 1, 2013* -
## math

If the denominator of a fraction decreases by 20 percent, and the numerator increases by 20 percent, by what percentage does the value of the fraction change?

*asked by sukh on February 4, 2017* -
## math grade 12

A sheet of plastic stops 25% of the light and lets through the residual 75%. What percentage of the light is let through by two sheets of the plastic ?

*asked by May on August 17, 2015* -
## hellppp

an assortment of coins contains 20 pennies, 2 nickels and 6 dimes. what percentage of the coins are nickels? show how is solved ?????????

*asked by Anonymous on September 14, 2011* -
## Florida Science Grade 8

Saturn's atmosphere consists of 75.3% hydrogen and 24.25% helium.what percentage of Saturn's atmosphere is made up of other gases?

*asked by Desmond Reid on January 12, 2011* -
## Chemistry

Nitrogen Oxides, NOx (mixture of NO and NO2). The NOx in the atmosphere is slowly broken down to N2 and O2 in a first-order reaction. The average half-life of NOx in the smokestack emissions in a large city during daylight is 3.9 hours. (a) Starting with

*asked by Robert on June 28, 2012* -
## Chemistry

Virtually all the nitric acid manufactured commercially is obtained by the ammonia oxidization process. This involves this first step: Ammonia gas combines with oxygen to form nitrogen monoxide and water vapour. a) Write a balanced equation for the

*asked by Kayla on January 21, 2015* -
## Physics help?

Nitrogen gas molecules, which have mass 4.65×10−26 kg, are striking a vertical container wall at a horizontal velocity of positive 440 m/s. 5.00×1021 molecules strike the wall each second. Assume the collisions are perfectly elastic, so each particle

*asked by Megan on June 2, 2012* -
## chemistry

which metal react most vigorously? metals aluminum, copper, magnesium, lead, tin, zinc 1. which metal will react most quickly? 2. which will take the longest time to react? 3. which will react most vigorously and least vigorously? 4. list metals from order

*asked by rick on April 18, 2013* -
## Ecnomics

Wilpen Company, a price-setting firm, produces nearly 80 percent of all tennis balls purchased in the United States. Wilpen estimates the U.S. demand for its tennis balls by using the following linear specifications: Q= a + bP + cM + dPr Where Q is the

*asked by Christopher on July 3, 2009* -
## Manageral Economics (Economyst Only Please)

Wilpen Company, a price-setting firm, produces nearly 80 percent of all tennis balls purchased in the United States. Wilpen estimates the U.S. demand for its tennis balls by using the following linear specifications: Q= a + bP + cM + dPr Where Q is the

*asked by John Q on July 4, 2009* -
## chemistry

A 1.252g sample containing iron dissolved and converted to Fe followed by ADDITION OF 25ML OF 0..01m K2CR2 07. THE EXCESS K2CR207 REQUIRED 6.85ML OF 0.015m SN2+. Find the percentage fe3 04 fw 213g/mol in the sample. Who helps me

*asked by Fai on December 12, 2012* -
## math

A chartered bank is raising the interest rate on its Visa credit card from 9% to 11%. What will be the percent increase in the interest charges on a given balance? Note: Please make sure your final answer(s) are in percentage form and are accurate to 1

*asked by suvi on February 14, 2010* -
## Chem

A 7.50g sample of aluminum is placed in 250.0 mL of 1.80 mol/L sulfuric acid. The reaction is not nearly as vigorous as expected and produces only 427 mL of gas at 27 degrees celsius and 480 kPa pressure. Calculate the percentage Yield of the reaction

*asked by Tuan on February 15, 2016* -
## 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? Please Give as much detail as possible instructor will not help

*asked by Devin Boutte on November 19, 2011* -
## chemistry

A student dissolves a .726 g aspirin tablet in water and titrates the solution with .272 M NaOH are required to reach the equivalence point. Calculate the percentage of acetylsaliclic acid in the tablet. I am not really sure where to start with this. I

*asked by Aaron on February 28, 2017* -
## P-Chemistry

A closed vessel of volume 2.50 dm3 contains 100g of nitrogen (N2) and 100g of carbon dioxide (CO2) at 25 C. What are the partial pressures and mole fractions of each gas? Can you check my answers.Thank you. I got Partial Pressure for N2=34.95 atm CO2=22.24

*asked by Jessy on September 5, 2016* -
## math

Reading readiness of preschoolers from an impoverished neighborhood (n=20) was measured using a standardized test. Nationally, the mean on this test for preschoolers is 30.9 with SD=2.08. A) Children below the 30th percentile (in the bottom 30%) are in

*asked by Sasha on April 12, 2012* -
## science

the question says assume the valencies of hydrogen, nitrogen and carbon in the compounds are 1, 3 and 4 from this i must draw a structural formulae for hydrogen cyanide and cyanogen that are consistant with these valencies. please help H : C::: N: Does

*asked by Mark jones on February 27, 2007* -
## Chemistry

Nitrogen can also be produced from sodium metal and potassium nitrate by the reaction: Na(s) +KNO3 (s) --> K2O(s) +Na2O(s) + N2(g) If we generate oxygen by the thermal decomposition of potassium chlorate: 2KClO3(s) --> 2KCl(s) +3O2(g) How many grams of

*asked by Ka_Chin on November 8, 2015* -
## Chemistry- Dr.Bob!

1. Oxygen (O2) is about 20% of our air, with about 80% nitrogen and a bunch of minor components. In Colorado Springs, where I grew up, the elevation is ~ 6500 feet and atmospheric pressure is only around 12 psi (vs. 14.7 psi at sea level). Under those

*asked by Sanaya on January 20, 2016* -
## chemistry

Mixtures of helium and oxygen are used in scuba diving tanks to help prevent ‘the bends’, a condition caused by nitrogen bubbles forming in the bloodstream. If 95 L of oxygen and 25 L of helium at STP are pumped into a scuba tank with a volume of 8.0

*asked by alex on March 20, 2013* -
## Chemistry

Nitrogen dioxide, NO2, dimerizes easily to form dinitrogen tetroxide , N2O4 : 2NO2N2O4 a) Calculate Change in reaction G* and K for this equilibrium. b) Calculate the (e) (the measure of the progress of the reaction) for this equilibrium if 1.00 mol NO2

*asked by Jenna on October 21, 2011* -
## science/ chemistry

Ethane (C2H6) is one of the many products of combustion of iso-octane, an important component of petrol. After release into the atmosphere, it is attacked by the hydroxyl radical, HO•, leading to its oxidation in the cycle of reactions when in a NOx-rich

*asked by Nicolas on September 14, 2008* -
## Economics

Suppose that 20 workers were required in 2010 to produce 120,000 bushels of wheat on a 1,000-acre farm. a. What is the average output per acre? (?) bushels per acre What is the average output per worker? (?) bushels per worker b. If in 2020 only 16 workers

*asked by Jin on August 20, 2015* -
## thermo

equal masses of ice at 0 oC, water aat 50 oC and steam at 100 oC are mixed and allowed to reach equilibrium. what will be the final temp of the mixture? and what percentage is the water and what percent will be steam??

*asked by holly on November 5, 2010* -
## Chemistry

Table salt, NaCl, and sugar C12H22O11 are accidentally mixed. A 5.50g sample is burned and 3.60g of CO2 is produced. What was the mass percentage of the table salt mixture?

*asked by Andrew on September 24, 2013* -
## Chemistry

Express the concentration of a 0.0510 M aqueous solution of fluoride, F-, in mass percentage and in parts per million. Assume the desnity of the solution is 1.00 g/mL Since, we're assuming the density I think that also means were assuming the volume.. but

*asked by Joy on February 20, 2012* -
## Maths'

What percentagge of £119.25p is £11.04p? Divide: 11.04 by 119.25. This gives you a decimal number. Move the decimal point two places to the right to turn it into a percentage. Please post your answer and we'll be glad to check it.

*asked by wattie on August 8, 2006* -
## MATH

Mabel has $35,000 to invest in a certificate of deposit for 4 years. The certificate of deposit earns interest at 4.75% compounded daily. What is the annual percentage yield to the nearest thousandth of a percent?

*asked by Beth on February 13, 2016* -
## Math Question

Mr. hernandez had to interview a total of 63 households in his assignment. H has already finished 28. what percentage of the households in his assignments has he finished? (round your answer to the nearest tenth of a percent.) .... your aunt is building a

*asked by Anonymous on December 29, 2009* -
## Chemistry

A solution contains 40.0 g of sodium chloride and 200.0 g of water. Calculate the NaCl concentration as a a) mass percentage, b) molality, c) mole fraction. I have trouble finding mole fraction. I believe I've got the other two, but I'm not 100% sure.

*asked by Mike on May 25, 2013* -
## thermo

equal masses of ice at 0 oC, water aat 50 oC and steam at 100 oC are mixed and allowed to reach equilibrium. what will be the final temp of the mixture? and what percentage is the water and what percent will be steam??

*asked by holly on November 5, 2010* -
## math

The average middle-distance runner at a local high school runs the mile in 4.5 minutes, with a standard deviation of 0.3 minute. The percentage of a runners that will run the mile in less than 4 minutes is %.

*asked by rick on July 31, 2012* -
## Math problem solving

An octagonal stop sign can be cut from a square sheet of metal, 750mm on a side. To the nearest hundredth, what percentage of the metal square is wasted when the octagon is of maximum size ?

*asked by Connor.M on January 5, 2015* -
## maths

A rectangular box with given dimensions length=80m, width=64m and height=48m. Has its two largest sides painted green. what percentage of the total area is painted green?

*asked by Claudia on May 31, 2016* -
## science

If a radioactive isotope has a half life of 10 years and you start with 100 grams what is the fraction left, percentage left, and amount of original in grams I would like for you to explain how to do it not tell me the answer that's the question

*asked by keona on May 5, 2016* -
## chemistry

Calculate the resulting pressure if 4.50 liters of nitrogen at 35 degrees Celsius and 790 torr and 3.7 liters of oxygen at 15 degrees Celsius and 750 torr are pumped into a 1.00 liters container at 25 degrees celsius. Assume ideal gas behavior.

*asked by carolann on March 24, 2014* -
## Stats -Math

1. We are interested in conducting a study in order to determine what percentage of voters of a state would vote for the incumbent governor. What is the minimum size sample needed to estimate the population proportion with a margin of error of 0.05 or less

*asked by Lauren on December 13, 2016* -
## Chemistry

Nitrogen dioxide, a pollutant in the atmosphere, can combine with water to from nitric acid. One of the possible reactions is shown below. Calculate ∆G0 and Kp for this reaction at 25oC and comment of on the spontaneity of the reaction (MUST plot the

*asked by Yasemine on April 18, 2013* -
## Chemsitry

Nitrogen dioxide, a pollutant in the atmosphere, can combine with water to from nitric acid. One of the possible reactions is shown below. Calculate ∆G0 and Kp for this reaction at 25oC and comment of on the spontaneity of the reaction (MUST plot the

*asked by Yasemine on April 19, 2013* -
## chemistry

Air consits of 21% oxygen, 78% nitrogen and 1% argon by volume. Calculate the partial pressures in Pa if total pressure is 1 atm. My teacher just converted 1atm in pa and then did 21% of that for oxygen etc etc. Can you explain why she did this, is volume

*asked by sam on August 11, 2011* -
## math (pre-calc)

Analyzing a Stock. The beta, B of a stock represents the relative risk of a stock compared with a market basket of stocks, such as Standard and poor's 500 Index of stocks. Beta is computed by finding the slope of the line of best fit between the rate of

*asked by Rony on March 31, 2010* -
## stats

A final exam in Math 160 has a mean of 73 with standard deviation 7.73. Assume that a random sample of 24 students is selected and the test score of the sample is computed. Assuming the scores are normally distributed, what percentage of sample means are

*asked by dan on January 24, 2012* -
## Physics PLEASE HELP

Nitrogen gas molecules, which have mass 4.65×10−26 kg, are striking a vertical container wall at a horizontal velocity of positive 440 m/s. 5.00×1021 molecules strike the wall each second. Assume the collisions are perfectly elastic, so each particle

*asked by Christina on June 3, 2012* -
## Chemistry

I'm trying to find if potassium nitrate is polar or non-polar by using the electronegativity scale. Can someone check my work? Electronegativity: potassium: 0.82 nitrogen: 3.04 oxygen: 3.44 =3.44-3.04 =0.82-0.4 =0.4 =0.42 So the final answer is 0.42 and by

*asked by Marty on November 10, 2007* -
## chem

a sealed cylinder of a gas contains nitrogen gas at 1.00*10^3 kPa pressure and a temperature of 20C. They cylinder is left in the sun and the temperature of the gas increases to 50C. What is the new pressure in the cylinder?

*asked by Skye on January 24, 2012* -
## chemistry

Can someone help me with this? 1)What new element is formed if magnesium-24 is bombarded with a neutron and then ejects a proton? Write a balanced nuclear equestion for this transmutation. Is this beta decay? That's what I'm thinking, but I'm not sure. It

*asked by Alexander on December 19, 2006* -
## Physics

Please, help me with this problem... im a bit confused abt solving it.. In a tank of volume V=7.5 L, temperature T=300 K, there is a mix gases: n1=0.1 mole of oxygen, n2=0.2 mole of nitrogen, n3=0.3 mole of carbon dioxide. Considering the gases ideal,

*asked by Gyuzal on February 21, 2011* -
## Geometry

What units in the metic system would you use to measure each of the following quanities? a. distance from los angeles to new york b your waist measurement c. width of a hat d. your height The united States emitted 19.5 million t of nitrogen oxides (NO)into

*asked by Sherri on March 6, 2008* -
## Maths

In a class of 60 students,45 students are female. What percentage (%) of the students are male.

*asked by Tuns on December 5, 2016* -
## Chemistry pH

A 0.60 M solution of a weak acid, HA, has a pH of 3.72. What is the percentage ionization of the acid? What is the value of Ka for the acid?

*asked by Penny on April 17, 2014* -
## Chemistry

A 0.60 M solution of a weak acid, HA, has a pH of 3.72. What is the percentage ionization of the acid? What is the value of Ka for the acid?

*asked by Anonymous on April 17, 2014* -
## general chem

Using the activity series (Table 4.5), write balanced chemical equations for the following reactions. If no reaction occurs, simply write NR. (a) Nickel metal is added to a solution of copper (II) nitrate; (b) a solution of zinc nitrate is added to a

*asked by rob on October 9, 2011* -
## Is My Pseudocode Correct? - Programming

I am supposed to make a pseudocode for a fat gram calculator. These are the instructions: Design a program that asks for the number of fat grams and calories in a food item. Validate the input as follows: - Make sure the number of fat grams and calories

*asked by Bryson on October 15, 2014* -
## Physics

Explain Why the pressure of a gas in a nitrogen container falls continuously when the gas is continuously taken away while the pressure of a gas in a chlorine container remains constant until nearly all the gas is withdrawn

*asked by Joel on August 11, 2016* -
## statistics

Heights of men on a baseball team have a bell-shaped distribution with a mean of 169 cm and a standard deviation of 9 cm. Using the empirical rule, what is the approximate percentage of the men between the following values? a. 151 cm and 187 cm. b. 160 cm

*asked by slomomo on February 26, 2015* -
## chemistry

In which reaction does the smallest percentage change in volume occur? a) C3H8 (g) + 5O2(g) ---> 3CO2(g) + 4H2O(l) b) 4NH3(g) + 3O2(g) ----> 2N2(g) + 6H2O(l) c) CH4(g)+ 2O2(g) ----> CO2(g) + 2H2O(l) d) 2H2S(g) + SO2 (g) ----> 3S(s) + 2H2O(l) The correct

*asked by Marrion on October 10, 2009* -
## chemistry

In which reaction does the smallest percentage change in volume occur? a) C3H8 (g) + 5O2(g) ---> 3CO2(g) + 4H2O(l) b) 4NH3(g) + 3O2(g) ----> 2N2(g) + 6H2O(l) c) CH4(g)+ 2O2(g) ----> CO2(g) + 2H2O(l) d) 2H2S(g) + SO2 (g) ----> 3S(s) + 2H2O(l) The correct

*asked by Marrion on October 10, 2009* -
## chem

Three of the primary components of air are carbon dioxide, nitrogen, and oxygen. In a sample containing a mixture of only these gases at exactly one atmosphere pressure, the partial pressures of carbon dioxide and ni- trogen are given as PCO2 = 0.285 torr

*asked by a on May 31, 2014* -
## waste water treatment

Wastewater from a small town is treated in a trickling filter which is preceeded by a screen, sand-removal and primary clarification. The maximum hydraulic capacity, or peak flow, of the treatment plant is 1,500 m3/h. The dry weather flow (Qdwf) amounts

*asked by Nilu on November 25, 2013* -
## Principles of Finance

.A thirty year US treasury bond has a 4.0 percent interest rate.In contrast, a ten year Treasury bond has an interest rate of 2.5 percent. A maturity risk premium is estimated to be 0.2 percentage points for the longer maturity bond. Investors expect

*asked by Sandy on November 13, 2013* -
## Honors Chemistry

1. .0025 M tartaric acid completely reacts with .0030 M of Al bicarbonate if .913 l of CO2 forms at 298 Kelvin with pressure of 1.4 ATM how much base used? 2. 3.1 x 10^23 molecules of .0035 M hydriodic acid reacts with 25 grams of magnesium bicarbonate how

*asked by Bill on May 21, 2012* -
## pharmacy calculation

A suspension contains 2400 mg of active drug in 1000 ml waht is the percentage of drug in the final product? what is the answer? Total mass is 1000g + 2.400g. Percent by mass (m/m)= 2.4 /1002 * 100

*asked by sheila on October 23, 2006* -
## Maths

£2000 is invested at x% interest over three years. At the end of three years the money has grown to £2963. To the nearest percentage find the rate of interest. If you could help me out I would greatly appreciate it. I've tried to figure it out numerous

*asked by Steph on February 3, 2014* -
## Chemistry

I don't understand where to start first. Can you break it down for me? Ascorbic acid, also known as vitamin C, has a percentage composition of 40.9% C, 4.58% H, and 54.5% O. The molar mass of ascorbic acid is 176.1 g/mol. Determine the empirical and

*asked by GABS on January 20, 2016* -
## percentage

Sharil is cycling from his house to Jeju Island,which are 15km apart.If Sharil has cycled a distance of 9.5km,what percentage of the total distance does he have left? pls round off ur answer to 1 decimal place

*asked by Da S on February 13, 2012* -
## math

Jerry mixes the letters F,P,M,M,M,F and j thoroughly.without looking. Amanda draws one letter expresses as a fraction, decimal, and percentage, what is the probability that j will not be the letter Amanda selects. 7/8 0.875, 87.5%

*asked by couch potato on April 23, 2018* -
## statistics

The average middle-distance runner at a local high school runs the mile in 4.5 minutes, with a standard deviation of 0.3 minute. Find the percentage of a runners that will run the mile in less than 4 minutes?

*asked by dw on March 6, 2012* -
## math plz help !!!

plz help me I'm desperate!!! Jerry mixes the letters F,P,M,M,M,F,P and J thorough. Without looking Amanda draws one letter. Expressed as a fraction, decimal and percentage. What is the probability that J will NOT be the letter Amanda selects? A.7/8, 0.875,

*asked by cassie needs help on February 17, 2016* -
## math

there are 2000 students in a course. thet wrote a mathematics test which was scored out of 40 and then converted to percentage. draw a flowchart that reads the name,sex and score of each student and output the name of the female students that scored below

*asked by dorofina on May 26, 2017* -
## research in CriminalJustice

The five year survival rate for Caucasians for all forms of cancer increased from 39% in the 1960's to 57% now. Express the change in two ways: (1) as an absolute difference in terms of percentage and (2) as a relative difference in terms of percent.

*asked by Anonymous on March 20, 2012* -
## chemistry

i'm having a hard time for my chemistry project an my topic on titration and my topic is to determine the mass percentage of iron in steel wool and i can not get as much information on the steps to follows how to create the titration and equipment needed

*asked by piah on May 17, 2010* -
## Economics

The assessed value of Patty's residential property was $200,000 in 2004. In 2006, the assessed value increased to $225,000. The property tax rate in both years was 1.2 percent. Patty earned $60,000 each year. Determine Patty’s property taxes for 2004 by

*asked by Kesha on March 16, 2015* -
## proofread chemistry

write the formulas for the following compounds Sodium chlorate i put NaCl Lead (II) phosphate i put Pb2P For Magnesium hydrogen carbonate i had no clue! then it stats state the number of electrons lost or gained in forming each of these Ions. I didn't

*asked by John on March 9, 2008* -
## math

if out of two numbers, one number is increased by 10% and other number by 20%,find percentage increase in the product of the two numbers

*asked by imli on May 11, 2016* -
## Math

A customer paid $247.13 in interest on a loan of $950.50. What is the percentage of interest paid?

*asked by Jennifer on May 31, 2012* -
## Chemistry

A solution contains 153g Na3PO4 and 415g H2O. What is the percentage concentration of Na3PO4 in this solution

*asked by wj on July 13, 2011*