39 Answered Questions for the topic AP chem

03/30/20

thermochemistry
A sample of flammable liquid is placed into an enclosed cylinder which is then fitted with a movable piston. Initially the cylinder contains a volume of 1.60 L. The sample is ignited producing gas... more
Follows • 2
Expert Answers •1

03/21/20

(Please Help) Determination of boiling point of unknown liquid
Data:Calibration of thermometer:In ice-water system:Actual temperature, T(°C): T1: 0.0Thermometer reading, R(°C): R1 :0.2In boiling water system:Actual temperature, T(°C): T2: 100.0Thermometer... more
Follows • 1
Expert Answers •1
Ap Chem Chemistry

03/11/20

chemistry kinetics rate law
Give the characteristics of a first order reaction having only one reactanta) the rate of the reattion is not proportional to the concentration of the reactant b) the rate of the reaction is... more
Follows • 2
Expert Answers •1

02/02/20

colligative properties
OS Chapter 11 Items9. Calculate the freezing point of a solution of 400.0 g of ethylene glycol (C2H6O2) dissolved in 600.0 g of water. A) 80.0°C B) -5.5°C C) 20.0°C D) -20.0°C E) 5.5°C Kf =... more
Follows • 2
Expert Answers •1
Ap Chem

01/19/20

What is electronegativity?
Follows • 1
Expert Answers •1

05/08/19

Why is a calcium atom larger than a magnesium atom?
Please help explain in terms of not just periodic trends.
Follows • 1
Expert Answers •1

03/17/19

If 1000. g of calcium carbonate reacts with 750. g of hydrochloric acid, what is the theoretical yield of calcium chloride according to this reaction?
____CaCO3 + _____HCl ---> _____CaCl2 + _____H2O + _____CO2
Follows • 2
Expert Answers •1

03/17/19

Chorine and fluorine react to form gaseous chlorine trifluoride. In an experiment, you started with 1.75 moles of chlorine and 8.68 moles of fluorine.

___Cl2 + ____F2 ---> ___ClF2a. What is the limiting reactant?b. What mass of chlorine triflouride can be made?c. Which reactant is in excess?d. What mass of the excess reactant remains unused?
Follows • 1
Expert Answers •1

03/17/19

Copper (II) oxide solid and hydrogen gas react to form elemental copper and water.
a. Write a balanced equation for the reaction.b. How many grams of Cu can be produced when 19.9g of CuO react with 2.02g of H2?
Follows • 1
Expert Answers •1

03/17/19

In an experiment, 0.400 mol Fe and 0.750 mol HCl are combined. How many moles of hydrogen will form?

____Fe + ____HCl ---> _____H2 + _____FeCl2
Follows • 1
Expert Answers •1

11/16/18

Calculate the percent ionization of 0.125 M lactic acid in a solution containing 8.5×10−3 M sodium lactate.
Express your answer using two significant figures.
Follows • 2
Expert Answers •1

09/03/18

Why are silver, lead, and mercury so special? (why do they always precipitate out and never dissolve)
please be detailed but simple. i have to write a random paper about this yet we were never taught this. it's due tomorrow and before you say i procrastinated, this was just assigned friday and the... more
Follows • 2
Expert Answers •1

01/12/18

AP Chemistry Oxidation-Reduction Reaction Titration
Write the balanced net ionic equation for the reaction between MnO4ions and H2C2O4 in acid solution .2 . H ow many moles of Fe2 + ions can be ox i d i zed by 0.043 moles of MnO4 i o n s ?3 . 1.630... more
Follows • 2
Expert Answers •1

11/06/17

Find Kc for the reaction
The following reaction was performed in a sealed vessel at 723 ∘C :H2(g)+I2(g)⇌2HI(g)Initially, only H2 and I2 were present at concentrations of [H2]=3.10M and [I2]=2.20M. The equilibrium... more
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.