638 Answered Questions for the topic AP chemistry

08/03/17

temperature conversion
A made up temperature, degrees X, has a relationship with degrees Celsius as follows. Tx=(Tc+10 degrees Celsius) (5 degrees X/ 14 degrees Celsius) The question is to convert 58 degrees X to Celsius
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Ap Chemistry

08/02/17

Combustion analysis of toluene a common organic solvent gives 3.53 mg of c02 and 0.822mg of h20 if the compound contains only carbon and hydrogen what is empiri
Combustion analysis of toluene a common organic solvent gives 3.53 mg of c02 and 0.822mg of h20 if the compound contains only carbon and hydrogen what is empiri
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Ap Chemistry

08/02/17

Combustion of a 0.2000 gram sample of vitamin c (which contains c,h,and 0 Yield 0.2998 g of c02 and 0.0819 g of h20. calculate the empirical formula of vitamin
Combustion of a 0.2000 gram sample of vitamin c (which contains c,h,and 0 Yield 0.2998 g of c02 and 0.0819 g of h20. calculate the empirical formula of vitamin c ?  
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Ap Chemistry

08/01/17

Find the percentage of water in copper sulfate pentahydrate ?
Find the percentage of water in copper sulfate pentahydrate ?  
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Ap Chemistry

07/31/17

how many molecules of h20 are contained in 150.grams of water
how many molecules of h20 are contained in 150.grams of water
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Ap Chemistry

07/31/17

how many moles of co2 are in 10.0 grams of co2
how many moles of co2 are in 10.0 grams of co2how many moles of co2 are in 10.0 grams of co2
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Ap Chemistry

07/24/17

5. An empty 3.00 L bottle weighs 1.70 kg. Filled with wine it weighs 4.55 kg. The wine contains 11.0% ethyl alcohol by mass. How many ounces of ethyl alcoh
 An empty 3.00 L bottle weighs 1.70 kg. Filled with wine it weighs 4.55 kg. The wine contains 11.0% ethyl alcohol by mass. How many ounces of ethyl alcohol are present in a 400.0 mL glass of wine?... more
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Ap Chemistry

07/18/17

A bug travels at the rate of 3.0 miles/hour. How fast is this in m/nsec? Hint: 2.54 cm = 1 inch and 1 mile = 5,280 feet
A bug travels at the rate of 3.0 miles/hour. How fast is this in m/nsec? Hint: 2.54 cm = 1 inch and 1 mile = 5,280 feet
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Ap Chemistry

07/18/17

A cylinder has Diameter = 25.0 mm Calculate its density in g/cm3. Height = 59.0 cm Mass = 38.0 g
A cylinder has Diameter = 25.0 mm Calculate its density in g/cm3. Height = 59.0 cm Mass = 38.0 g
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Ap Chemistry

07/18/17

A bug travels at the rate of 3.0 miles/hour
A bug travels at the rate of 3.0 miles/hour. How fast is this in m/nsec? Hint: 2.54 cm = 1 inch and 1 mile = 5,280 feet
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Ap Chemistry

07/17/17

he diameter of metal wire is often referred to by its American wire gauge number.
The diameter of metal wire is often referred to by its American wire gauge number. A 16-gauge wire has a diameter of 0.05082 inches. What length of wire, in meters, is there in a 1.00 pound spool... more
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Ap Chemistry

07/17/17

he diameter of metal wire is often referred to by its American wire gauge number. A 16-gauge wire has a diameter of 0.05082 inches
The diameter of metal wire is often referred to by its American wire gauge number. A 16-gauge wire has a diameter of 0.05082 inches. What length of wire, in meters, is there in a 1.00 pound spool... more
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Ap Chemistry

07/17/17

Assume you had a silver sphere with a mass of 1.50 kg. Calculate the diameter of the sphere
Assume you had a silver sphere with a mass of 1.50 kg. Calculate the diameter of the sphere (in cm). The density of silver is 10.5 g/cm3. The formula for the volume of a sphere is . . . V = 4/3r3. 
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Ap Chemistry

03/27/17

Which could be added to a solution of potassium fluoride to prepare a buffer? A) sodium hydroxide B) potassium acetate C) hydrochloric acid D) sodium fluoride
really struggling to understand why the answer is HCl when I though buffers were always weak acids and bases. How does adding HCl create a buffer. 
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Ap Chemistry

01/25/17

What is the molar mass of Neon rounded to the nearest whole number
What is the molar mass of Neon rounded to the nearest whole number
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Ap Chemistry

09/25/16

Writing Chemistry Formulas
1. Write the formula for tetraaquadichlorochromium(III)bromide.   2. Write the name of {Mo(NH3)Br3}NO3
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Ap Chemistry

09/25/16

Chemistry Problem
A solution of 100.0 mL of 0.200 M KOH is mixed with a solution of 200.0 mL of 0.150 M NiSO4.(a) Write the balanced chemical equation for the reaction that occurs. (b) Identify the limiting... more
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Ap Chemistry

09/25/16

AP Chemistry
Anexperiment calls for you to use 100 mL of 0.50 m hno3 solution. All you have is 3.6M HNO3. How would you prepare the desired solution?
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Ap Chemistry

05/03/16

HHow much heat is needed to warm 115 grams of water from 26 degrees Celsius to 61 degrees Celsius
 don't know how to describe more
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Ap Chemistry

04/19/16

how many moles of PbCl2 will dissolve in 1 liter of .2 M Pb(NO3)2
 I am working on a chemistry packet and this is one of the problems. I do not know where to start on how to do it or how to get an answer. 
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Ap Chemistry

03/23/16

A one thousand liter sample of water contains one gram of iron (3) ions. What is the concentration of Fe3+(aq) in parts per million?
I know the answer is 1 but I do not know how. 
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03/07/16

Having major trouble with this... Question is down below please show work and answer thanks!
Question #1 In a titration 23.46 ml of 0.00325 M Ba(OH)2 neutralized 13.8 ml of HCL solution. What is the molarity of the HCl solution? Answer in units of M     Question #2  Find the molarity... more
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03/04/16

Having trouble with these questions below... Please help show work and answer thanks!
Question #1 If 23.67 mL of a solution of Ba(OH)2 requires 15.05 mL of a 1.082 M solution of HNO3 for complete titration, what is the molarity of Ba(OH)2 solution?  answer in units of... more
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02/21/16

Equilibrium Constant
The basic question I am asking is how does varying the initial concentrations of reactant(s) in a chemical reaction affect the equilibrium constant. What I have so far is:   Using this basic... more
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Ap Chemistry

12/13/15

What mass of HgBr2 can be produced from the reaction of 5.00mL mercury (density= 13.6g/ml) and 5.00mL bromine (density= 3.10g/ml)?
Is Hg the limiting reactant? 
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