Chemistry Homework Help

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Q. A chemist requires 0.719 mol Na2CO3 for a reaction. How many grams does this correspond to?

Solved • Sep 24, 2017

Q. An atom has a radius of 155 pm and crystallizes in the face-centered cubic unit cell. What is the volume of the unit cell in cm3?

Solved • Sep 22, 2017

Q. Calculate how many grams of O2(g) can be produced from heating 82.1 grams of KClO3(s).

Solved • Sep 23, 2017

Q. How many grams of the dry-cleaning solvent 1,2-dichloroethane (also called ethylene chloride), C2H4Cl2, can be prepared by reaction of 16.0 g of ethylene, C2H4,with 3.84 g of Cl2 ? C2H4+Cl2→C2H4Cl2

Solved • Sep 24, 2017

Q. Temperature Scale Problem with Ethanol

Solved • Sep 24, 2017

Q. What mass of oxygen gas is produced by the reaction of 7.45g of carbon dioxide? Be sure your answer has the correct number of significant digits.

Solved • Sep 22, 2017

Q. relative rate

Solved • Sep 22, 2017