Chemistry Solutions Library

Chemistry Solutions Library

Access over 28,017 Chemistry video and text solutions to help you complete your homework.

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28,017 solutions

The Ideal Gas Law

Q. Dinitrogen difluoride gas is collected at -17.0°C in an evacuated flask with a measured volume of 30.0 L. When all the gas has been collected, the ...

Solved • Nov 18, 2020

Mole Concept

Q. The molar mass of aluminum sulfate, Al2(SO4)3 (in g/mol) is?

Solved • Nov 18, 2020

Heating and Cooling Curves

Q.  531 cal of heat is added to 5.00 g ice at -20.0°C. What is the final temperature of the water?

Solved • Nov 18, 2020

Intermolecular Forces and Physical Properties

Q. Arrange these compounds by their expected boiling point Highest to lowest boiling pointCH3OH, CH4, CH3Cl

Solved • Nov 18, 2020

Hess's Law

Q. Calculate the enthalpy of the reaction 2 NO(g) + O2(g) → 2 NO2(g) Given the following reactions and enthalpies of formation: 1/2 N2(g) + O2(g) → NO...

Solved • Nov 18, 2020

Mole Concept

Q. a. What is the mass of one helium atom?b. What is the mass of 1.5 moles of helium atoms?

Solved • Nov 18, 2020

Mole Concept

Q. a. If you had 0.15 kg of helium, how many helium atoms would you have? b. If you had 12 dozen helium atoms, what would be their mass? 

Solved • Nov 18, 2020