# If the relative atomic mass of CH2O is calculated it's empirical formula (C=12,H=1,O=16)

46,086 questions, page 40
1. ## Science 1 easy question!!!!

If new information about the behavior of atoms is discovered and verified, then revisions will need to be made to the current___ My answer: Atomic model?

2. ## Science

Nuclear power is from ___________. What word(s) goes in the blank? The bonding energy in the atomic nucleus. Thanks! :) caley you have to be looking at this please talk to me

asked by Caley on December 12, 2006
3. ## chem

What is the name origin of plutonium? What is its crystal structure? What is the atomic number? Is it radio active or synthetic? What is its classification? What is its uses? Where is it obtained from?

asked by lizzy on January 9, 2012
4. ## grammar

How do you combine these two sentences: The first atomic bomb was tested in 1945. It was exploded on the White Sands Proving Grounds.

asked by Victoria on January 29, 2013
5. ## Physics0

A)In your body the following reaction takes place: C6H12O6 + nO2 ! mCO2 + 6H2O What are the numbers n and m? and my answer was: n=6 and m=6, but I don't know what formula shall I use to workout question B B) How many protons are present in 5 tonnes of

6. ## Physics

A pendulum is constructed of a 6.7 gram mass suspended on a 55cm thread. The mass is displaced vertically 55 cm to a point exactly horizontal from the top of the thread and released. The mass swings down and is cut directly above the mass when the mass is

asked by Hannah on December 7, 2010
7. ## Physics

A 83.8 kg astronaut is working on the en- gines of a spaceship that is drifting through space with a constant velocity. The astronaut turns away to look at Earth and several sec- onds later is 39.6 m behind the ship, at rest relative to the spaceship. The

asked by Chris on January 25, 2015
8. ## physics

A 1-kg mass (the blue mass) is connected to a 9-kg mass (the green mass) by a massless rod 67 cm long, as shown in the figure. A hole is then drilled in the rod 40.2 cm away from the 1-kg mass, and the rod and masses are free to rotate about this pivot

9. ## physics

A 1-kg mass (the blue mass) is connected to a 9-kg mass (the green mass) by a massless rod 67 cm long, as shown in the figure. A hole is then drilled in the rod 40.2 cm away from the 1-kg mass, and the rod and masses are free to rotate about this pivot

asked by Anonymous on March 26, 2012
10. ## physics

A 1-kg mass (the blue mass) is connected to a 8-kg mass (the green mass) by a massless rod 67 cm long, as shown in the figure. A hole is then drilled in the rod 40.2 cm away from the 1-kg mass, and the rod and masses are free to rotate about this pivot

asked by hania on March 25, 2012
11. ## physics

A 1-kg mass (the blue mass) is connected to a 9-kg mass (the green mass) by a massless rod 70 cm long, as shown in the figure. A hole is then drilled in the rod 40.2 cm away from the 1-kg mass, and the rod and masses are free to rotate about this pivot

asked by deb on March 24, 2012
12. ## physics

A 1-kg mass (the blue mass) is connected to a 9-kg mass (the green mass) by a massless rod 67 cm long, as shown in the figure. A hole is then drilled in the rod 40.2 cm away from the 1-kg mass, and the rod and masses are free to rotate about this pivot

asked by hania on March 25, 2012
13. ## Chemistry

A 0.2800 g sample of an unknown acid requires 28.22 mL of 0.1199 M NaOH for neutralization to a phenolphthalein point. a.) How many moles of OH- are used? b.) How many moles of H+ are found in the acid? c.) What is the calculated equivalent molar mass of

asked by Jess on November 1, 2014
14. ## Physics

An astronaut with a mass of 90 kg (including spacesuit and equipment) is drifting away from his spaceship at a speed o f.2 m/s with respect to the spaceship. The astronaut is equipped only with a 0.5 kg wrench to help him get back to the ship. With what

asked by Kelsey on November 13, 2016
15. ## physics

216J if energy is required to raise the temperature of aluminium from 15 degrees Celsius to 35 degrees Celsius. Calculate the mass of the aluminium. My work I keep getting 0.012 but it is not right I know the formula is Q= m x C x T

asked by Jiskha help on November 14, 2014
16. ## Physics

A 50 kg ice hockey player standing on a frictionless ice surface throws a ball, mass of 5.0 kg horizontally with a speed of 3.0 m/s. With what speed will the player recoil? • What formula/s should I use?

asked by Lea on August 31, 2015
17. ## Physics

A block of mass 77.0kg is placed at the top of a frictionless plane that is inclined 46 degrees to the horizontal. The height of the plane is 23.0 meters. Find the speed of the block at the bottom of the plane. Please show all your steps, don't just

asked by Jen on June 11, 2012
18. ## Chemistry

If 0.48 g of sulfur are added to 200 g of carbon tetracholoride, and the freezing point of the carbon tetrachloride (Kf=30 degrees C/m) is depressed by 0.28 degrees C, what is the molar mass and molecular formula of the sulfur?

asked by Kelly on February 17, 2012
19. ## Physics

A 25 kg mass is on a level, rough surface where the force of friction is a constant 15 N. A horizontal applied force of 65 N acts on the mass. The mass is initially at rest. What speed does that mass have after being moved 2.0m?

asked by Maia on October 16, 2010
20. ## Physics

A 25 kg mass is on a level, rough surface where the force of friction is a constant 15 N. A horizontal applied force of 65 N acts on the mass. The mass is initially at rest. What speed does that mass have after being moved 2.0m?

asked by Tia on October 17, 2010
21. ## chemistry

The formate ion, (CHO2-), is related to the acetate ion and forms ionic salts with many metal ions. Assume that 9.7416 g of M(CHO2)2 (where M represents the atomic symbol for a particular metal) are dissolved in water. When a solution of 0.200 M sodium

asked by bill on April 11, 2012
22. ## Chemistry

Hi, I have a question on HPLC (high performance liquid chromatography). The procedure says to use a 4.6 x 150mm x 3um column. The relative retention time of Impurity B with reference to the main peak is about 0.5min. If I use a 4.6 x 100mm x 2.7um column,

asked by anne on October 14, 2011
23. ## CHEM

could someone please explain how to work out the highest fhydride and the highest flouride of ununhexium ,if the valance is 6 UUHF6 AND UUH6 ,I THOUGHT IT WOULD HAVE BEEN UUH2COULD SOMEONE EXPLAIN MANY THANKS hi Jill i sent you a message are you able to

asked by jill on January 31, 2007
24. ## chemistry :)

Write the formula for the polyatomic ion in NaNO 3. Write the formula for the polyatomic ion in Ag2CO3. Write the formula for the polyatomic ion in NaHCO3. Write the formula for the polyatomic ion in BaSO4

asked by M on September 11, 2014
25. ## Geography

Would outdoor locations in countries such as Singapore with the highest temperatures also have the highest relative humidities? Explain 2 reasons? Would outdoor locations in countries such as Singapore with the highest temperatures necessarily have the

asked by Becky on March 2, 2013
26. ## Chemistry

A 1.33 m solution of the solute diethyl ether dissolved in the solvent tetrahydrofuran is available. Calculate the mass(kg) of the solution that must be taken to obtain 0.4716 kg of diethyl ether. Name/Formula: diethyl ether = (C2H5)2O tetrahydrofuran =

asked by Luc on March 1, 2010
27. ## Physics

A 1.2 kg block is attached to a horizontal 23 N/m spring and resting on a frictionless horizontal surface. The block is set oscillating with amplitude 10 cm and phase constant – π/2. A 2nd block with mass 0.8 kg moving at 1.7 m/s collides inelastically

asked by Erick on May 24, 2012
28. ## pre cal

Find a possible formula for the function graphed below. Assume the function has only one x-intercept at the origin, and the point marked on the graph below is located at (2,12). The asymptotes are x=−2 and x=1. Give your formula as a reduced rational

asked by tor on July 28, 2016
29. ## Separation processes

Hi, the question is: In an equilibrium diagram for a binary mixture, what does it mean for distillation if the relative volatility is low? a)Separation of the components is easy b)No separation of the components can be done c)There is no difference of ease

asked by Murugan on March 12, 2015
30. ## simple intrest

My daughter brought home a work sheet and I have no clue where to begin to help her and she seems to have no clue either. the questions are 1. Find the final balance in each account. \$800 at 4.25% simple intrest for 6 years 2. \$2,000 at 6% compounded

asked by Veronica on February 20, 2007
31. ## journal article about running

i need to find a peer reviewed journal article pertaining to my chosen behavior modification project, which is to start running regularly. the article should be at least 3 pages in length and must include empirical research.

asked by Jenna on February 26, 2009
32. ## physics

One end of a massless coil spring is suspended from a rigid ceiling. It is found that when a 4 kg mass is suspended from it the spring stretches 90 mm when the mass comes to rest. (a) What is the spring constant for the spring B)If the mass is then pulled

asked by Andrea on October 31, 2011
33. ## English

e.g. Can you repeat what he said? 1. Can you repeat the thing which he said? (what =relative pronoun) 2. Can you repeat___? + What did he say? (what=interrogative pronoun) (What does the example sentence mean? Does it mean #1 or #2? Is 'what' a relative

asked by rfvv on March 29, 2011
34. ## dynamics

Find the mass center of a cylinder with height L and a hemisphere glued to the top with radius R. L=2R. The cylinder is standing up on its bottom end with hemisphere on top. Im so lost on this and cant use the formula to work.

asked by spencer on February 8, 2009
35. ## Physics Help

What is the angular momentum of the Moon in its orbit around Earth? I assume I need the mass of the moon, radius of the moon, and angular velocity of the moon. Found those on google, plugged them into my formula (Iw) and got the wrong answer...

asked by tyger2020 on January 4, 2018
36. ## chemistry

THank you for help steve with the other one!! :) My other one is: The compostition of adipic acid used in the manufacture of Nylon is 49.3%c, 6.9% H and 43.89%O. The molecular mass is known to be 146 amu. What is the molecular formula of adipic acid? I got

asked by rachell on April 2, 2012
37. ## chemistry

THank you for help steve with the other one!! :) My other one is: The compostition of adipic acid used in the manufacture of Nylon is 49.3%c, 6.9% H and 43.89%O. The molecular mass is known to be 146 amu. What is the molecular formula of adipic acid? I got

asked by rachell on April 2, 2012
38. ## physics

A horizontal force of 20 N acted on a 10 kg mass at rest. The force accelerated the mass over a rough surface so that the mass had a speed of 6.0 m/s after 5.0 seconds. How much friction was acting on the mass?

asked by Liz on October 15, 2010
39. ## statistics

Using the 68-95-99.7rule. Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: a. percentage of scores less than 100 b. relative frequency of

asked by Christine on May 10, 2010
40. ## chemistry

Assayed for LDH activity were 5 microliters of a sample that was diluted 6 to 1. The activity in the reaction vessel, which has a volume of 3 mililiters, is 0.30 U. What is the ΔA/min observed? What is the relative activity of the original sample? Here

asked by stew on February 15, 2008

A distant galaxy is simultaneously rotating and receding from the earth. As the drawing shows, the galactic center is receding from the earth at a relative speed of uG = 1.90 106 m/s. Relative to the center, the tangential speed is vT = 3.00 105 m/s for

asked by linds on March 27, 2012
42. ## Physics

A boat crosses a river of width 122 m in which the current has a uniform speed of 2.39 m/s. The pilot maintains a bearing (i.e., the direction in which the boat points) perpendicular to the river and a throttle setting to give a constant speed of 2.81 m/s

asked by Greg Knightly on November 8, 2012
43. ## Physics

A boat crosses a river of width 115 m in which the current has a uniform speed of 1.84 m/s. The pilot maintains a bearing (i.e., the direction in which the boat points) perpendicular to the river and a throttle setting to give a constant speed of 1.1 m/s

s=k ln W * lottery numbers / g!^¥ + ([x:86:23]

asked by Serge on June 25, 2016
45. ## PHYSICS ENERGY CONSERVATION!!

The car shown in the figure has a mass of 395 kg when it passes through point A with a speed of 17.7 m/s, being the height of A 7.2 m above the ground (y = 0). In the instant that passes through C its speed is diminished to 7.6 m/s. Assuming that the path

asked by Malcolm on April 10, 2016
46. ## math

A.) start by calculating how long it will take you to save enough money and pay cash with your potential \$300.00/month savings, taking into account the \$1000.00 you have already saved. B.)Now imagine you have invested your original \$1000.00 savings. I.)

asked by sim on April 22, 2014
47. ## physics

One end of a massless coil spring is suspended from a rigid ceiling. It is found that when a 3.3 kg mass is suspended from it the spring stretches 105 mm when the mass comes to rest. (a) What is the spring constant for the spring? (b) If the mass is then

asked by Austin on November 1, 2011
48. ## chemistry

A 1.325 g sample of an unknown vapor occupies 386 mL at 114 celsius and 946 mmHg. The simplest formula of the compound is NO2. What is the molecular formula of the compound? (I have N2O4, is this correct and if not, why not? We never went over this type of

asked by lavonne on October 19, 2010
49. ## Physics

You will use the formula p*V = kB*N*T to find the depth of the box (front to back measurement). The volume of the box is given by the formula V = W * H * D. (You will need to convert the pressure from atm to Pa, or pascals, by multiplying atms by 1 * 105.)

asked by Jennifer on April 19, 2015
50. ## algebra

Ok my math assignments look something ike this... The formula I=prt gives the amouunt of simple interest I earned by principal p at an annual interest rate r over t years. Solve this formula for p. B. Find p if r=0.035, t=4, and I=\$420. c. Writing.. That

asked by K8T on October 28, 2008
51. ## physics

A woman with mass of 63 kg stands at the rim of a horizontal table having a moment of inertia of 520 kg m2 and a radius of 1.5 m. The turntable is initially at rest and is free to rotate about a frictionless, vertical axis through its center. The woman

asked by Lexus on February 16, 2015
52. ## Physics

A woman with mass of 57 kg stands at the rim of a horizontal table having a moment of inertia of 570 kg m2 and a radius of 1.5 m.The turntable is initially at rest and is free to rotate about a frictionless, vertical axis through its center. The woman then

asked by Luhan on March 13, 2016
53. ## phy

a watermelon seed has the following coordinates: x= -5.0, y = 8.0m, and z = 0m. find its position vector (a) in unit-vector notation and as (b) a magnitude and (c) an angle relative to the positive direction of the x axis (d) sketch the vector on the

asked by stephen on February 9, 2013
54. ## Physics

A watermelon seed has the following coordinates: x = -8.7 m, y = 1.6 m, and z = 0 m. Find its position vector as (a) a magnitude and (b) an angle relative to the positive direction of the x axis. If the seed is moved to the xyz coordinates ( 3.4 m, 0 m, 0

asked by Kelly on February 2, 2015
55. ## Chem

What happens when a student cup between trials? What effect will the error have on the calculated value of the delta H of neutralization?

asked by Kai on November 9, 2010
56. ## econonmics

Research the labor market for any state to determine how nursing wages are calculated.

asked by danny on August 24, 2008
57. ## chemistry

based on your calculated rf values which cations formed weakly charged complexes

asked by jawaher on February 18, 2016
58. ## lauric acid

what happens to the calculated molar has if the lauric acid is spilled before determining the freezing point?

asked by s on January 8, 2015
59. ## health

The postoperative death rates are calculated by patients who have expired in what period of time?

asked by cheryl on November 2, 2009
60. ## math

selena calculated the percentage change in the price of a microwave as -87%please explain what it means

asked by Godiraona on January 17, 2016
61. ## science

what speed is calculated as total distance traveled divided by travel time?

asked by kyla on January 10, 2009
62. ## CHEMISTRY

When 6.724 g of one of the hydrates of sodium sulfate (Na2SO4) was heated to drive off its water of hydration, the residue of anhydrous sodium sulfate has a mass of 2.964 g. What is the value of x in the formula for the hydrate, Na2SO4•xH2O?

asked by Annie on March 7, 2014
63. ## chemistry problem

A carbon nucleus has six protons and six neutrons. How many electrons would it take to equal the mass of a carbon nucleus? ok. i think theres some type of formula or some trick to figure this one out but i don't know what it is. If you guys know how to

asked by Sarah on September 20, 2010
64. ## Geometry

I really need help with this. Explain how the formula for the area of a triangle can be determined by using the formula for the area of a parallelogram.

asked by amanda on October 5, 2009
65. ## math

Is there a formula to sum the digits between two numbers? eg. 1 to 20 = 1+2+3+4+5+6+7+8+9+1+0+1+1+1+2+1+3+1+4+1+5+1+6+1+7+1+8+1+9+2+0 = ?? I am looking for the numbers 1 to 2008 so I really need a formula! Please help, thank you. Jane

asked by Jane on May 12, 2009
66. ## Math

The formula for the volume of a sphere is V=4 out of 3 pi r^3. How is this formula written if the radius,r,is a function of the volume,V?

asked by Sherri on October 4, 2010
67. ## Physics

Why is sin theta used in the torque formula while the work formula uses cosine theta?

asked by Morgan on March 24, 2010
68. ## algebra

In the formula p(x) = -.1x^2 + 50x -300, could you describe the meaning of the number -.1 and -300 in the formula?

asked by Anonymous on April 10, 2012
69. ## precal

I do not understand when a function is even or not. I know the formula for telling them apart, but I do not understand it. Could someone break down the formula for me and explain it? Thanks

asked by Mike on September 30, 2007
70. ## math

to convert from F to C we use this formula. (c)=(f-32)*5/9 using this formula,convert 85 F to celsius rounded to the tenth place

asked by paris on January 31, 2008
71. ## Chemistry

There are three naturally occurring isotopes of the hypothetical element hilarium 41Hi, 42Hi, and 44Hi. The percentages of these isotopes are the following: Hilarium Natural Isotopes Abundance 41Hi 18.7% 42Hi 43.6% 44Hi 37.7% You can assume that the atomic

asked by anonymous on August 22, 2016
72. ## Chemistry

In a previous experiment, 0.800 g of the green complex iron salt was placed in an Erlenmeyer flask and heated with concentrated sulfuric acid until all oxalate ion was destroyed (CO2, SO2 and H2O are formed). Ferric ion (Fe3+) remained in solution and was

asked by Linda on May 7, 2007
73. ## calc

y = 4x -4 / x^2 vertical asymptotes: ____________________ horizontal asymptotes: ____________________ increasing intervals: ____________________ decreasing intervals: ____________________ relative maxima: ____________________ relative minima:

asked by Jordan on January 24, 2012
74. ## physics

Suppose that the displacement of a particle is related to time according to the expression delta x = ct^3. What are the SI units of the proportionality constant c? My answer: delta x = ct^3 m = c s^3 (s: seconds) m/s^3= c The SI units for c: m/s^3 correct?

asked by galileo on January 15, 2007
75. ## chemistry

a 2.500g sample of an unknown compound containing only C, H and O was burned in O2. The products were 4.776g of CO2 and 2.934g of H2O. a) what is the percent compostion of the original compound? %C- %H- %O and what is empirical formual of compound?

asked by Tc on March 16, 2011

The mass m = 14 kg shown in the figure is displaced a distance x to the right from its equilibrium position. (Take k1 = 113 N/m and k2 = 198 N/m.) (a) What is the net force acting on the mass? (Use any variable or symbol stated above along with the

asked by HELP! on April 24, 2011
77. ## Physics

Two balls of equal mass (400g each) undergo a collision. One ball is initially stationary. After the collision, the velocities of the balls make angles of 22.5 degrees and 35.9 degrees relative to the original direction of the motion of the moving ball. If

asked by Zobia on March 22, 2015

4{C3H5(NO3)2}(l)--->6N2(g)+O2(g)+12CO2(g)+10H2O(g) If a dynamite of 100mL needs 3.5atm to explode, what minimum mass of C3H5(NO3)2 do I need to put in at 25 degree celcius? I tried to do this by finding the number of moles by the formula PV=nRT and then

asked by ashley on October 22, 2008
79. ## math

The formula Total cost = Cost + Shipping cost + Holding cost is used to find the total cost of a business asset. The formula can be written in symbols as T=C+S+H. Solve the formula for H, the holding cost of the asset.

asked by Debbie on December 14, 2013
80. ## chemistry

vinegar/water = 0ml/35ml initial mass (g) = 82.420 final mass with AS(g) = 84.925 How do I figure out initial mass of AS (g)= mass of CO2 evolved = moles of CO2(moles)= Mass of NaHCO3 (g)=

asked by Alisa on September 13, 2012
81. ## Science

A stationary roller coaster at the top of its path is 30m about the ground. The car and its passengers have a mass of 400kg. What is the velocity of the car when it reaches the ground lever? The formula for velocity is (Distance/time)

asked by Christina on June 6, 2011
82. ## Physics

In an elastic collision: mass a is 1kg, and is moving at 100ms^1 in the +ve x direction when it hits mass b, 10kgs at rest. Given: mass a moves off at 80 ms^1 in the -ve x direction. What's the final velocity of mass b. Using cons of momentum, i say 2 ms^1

asked by charlie on June 16, 2009
83. ## physics Helppp

3 mass are collienear formation A, B, C massA is 363 kg and is .5m away from mass B (517 kg)and mass B is .25m away from mass C (154kg) Find the magnitude and direction of the net gravitational force acting on each of the three particles (let the direction

asked by hy on November 21, 2010

James and slyvie need to paint the line around the soccer field. To know how much paint to buy they must find out the perimeter of the field. James claims, "I can calcuate the perimeter of the field by using the formula P= 2(l+w) while slyvie says that the

85. ## pre calculus

Double Angle Formula. If the double angle formula for cos2(u) = 2cos^2(u)-1, then write the double angle formula for cos2(u) in terms of sine.

asked by jack on October 11, 2017
86. ## Math-statistics

Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantiles: a.percentage of scores less than 100 b. relative frequency of scores less than 120 c.

asked by Jane Brown on March 1, 2013
87. ## statistics

Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: a. Percentage of scores less than 100 b.Relative frequency of scores less than 120

asked by TAW on November 21, 2010
88. ## Physics

An 95.0 kg astronaut is working on the engines of a spaceship that is drifting through space with a constant velocity. The astronaut turns away to look at Earth and several seconds later is 26.3 m behind the ship, at rest relative to the spaceship. The

asked by Becky on March 21, 2011
89. ## physics

An 94.4 kg astronaut is working on the engines of a spaceship that is drifting through space with a constant velocity. The astronaut turns away to look at Earth and several seconds later is 29.6 m behind the ship, at rest relative to the spaceship. The

asked by Bri on January 25, 2015
90. ## physics

An 85.4 kg astronaut is working on the engines of a spaceship that is drifting through space with a constant velocity. The astronaut turns away to look at Earth and several seconds later is 22.4 m behind the ship, at rest relative to the spaceship. The

asked by Elizabeth on April 20, 2011
91. ## Logarithms

1.) A fossil is burned and the CO2 produced is captured. It produces 453 counts of radiation per gram. Under the same conditions atmospheric CO2 produces 19 277 counts. Calculate the age of the fossil. I have the formula: Nt = N0 e^ -t(ln2)/T Nt is the

asked by Amy on September 4, 2012
92. ## MATH INTEREST

A FACTORY INCREASES THE PRODUCTION OF CARS ANNUALLY BY 8%. IF PRESENTLY IT MANUFACURES 211,000 CARS PER YR, HOW MANY CARS WILL IT MANUFACTURE PER YR AFTER 4 YRS... i BELIEVE THE ANSWER IS 287063 BUT IM UNSURE OF THE FORMULA... COULD YOU PLEASE SHOW FORMULA

asked by paully on November 7, 2010
93. ## Chemistry

A sample of InCl3, is known to be contaminated with NaCl. The contaminated sample weighs 2.84g. When the contamintaed sample is treated with excess AgNO3(aq). 574 grams of AgCl(s) are obtained. What is the percentage by mass of InCl3 in the sample? (All I

asked by Carlos on January 21, 2007
94. ## statistics

I have an ordianry deck of 52 cards, which has 26 red and 26 black cards. A friend shuffles the deck and draws cards at random, replacing the card and reshuffling after each guess. I attempt to guess the color of each card. A. what is the probability that

asked by virginia on March 9, 2008
95. ## physics

A river flows due east at 1.91m/s.A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 10.3m/s due north relative to the water. A.What is the velocity of the boat relative to shore? How far downstream has

asked by dillon on October 4, 2010
96. ## Chemistry

The relative humidity of air is equal to the ratio of the partial pressure of water in the air to the equilibrium vapor pressure of water at the same temperature. If the relative humidity of the air is 30.% and its temperature is 23°C, how many molecules

97. ## Science

A student mixed two clear liquids together in a beaker. A gas and a new liquid formed. The gas escaped, so the student was unable to measure its mass. She guessed that its mass was no more than 10.0 [LW1] grams. Her data is shown in the table below. Mass

asked by Baby_Banana on February 6, 2018
98. ## Physics - KE/Inertia

The rigid body shown in Figure 10-66 (it is a triangle with the upper mass = to M and the bottom two corners/masses equal to 2M. The bottom side length equals .70 cm with point P in the middle of the side and the other two sides equal .55 cm)consists of

asked by COFFEE on March 26, 2007
99. ## Chemistry

Consider a mixture of the two solids BaCl2.2H2O (FM 244.26) and KCl (FM 74.551). When the mixture is heated to 160C for 1 hour, the water of crystallization is drive off: BaCl2.2H2O --> BaCl2(s) + 2H2O(g) A sample originally weighing 1.7839g weighed

asked by Asuna on September 28, 2011
100. ## math

During the last hour, a telemarketer dialed 20 numbers and reached 4 busy signals, 3 answering machines, and 13 people. Use this information to determine the empirical probability that the next call will be answered in person. it is 13/20, unless he dares

asked by Carlos on March 25, 2007