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Exam 2: CHEM 120 / CHEM120
( 2025 / 2026) Intro to General, Organic & Biological Chemistry with Lab Test Review Questions and Answers ( Answers) - Chamberlain
Question:
If a sample of gas with a volume of 20mL at a pressure of 6 ATM is moved to an area with a pressure of 2 ATM, what is the new volume of the gas?
Answer:
60 mL
Question:
In the acid/ base reaction: KOH + HBr -> H2O +KBr. What is the base in this
chemical reaction?
Answer:
KOH
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Question:
You have added 2 grams HCl to 80ml of water. What would you expect to occur?
Answer:
RELAEASED HEAT MORE ACIDIC AND INCREASE IN HYDROGEN IONS.
Hcl TO DISSOCIATE FULLY INTO H+ AND CL ions causing to water to become strongly acidic
Question:
A 1.4 mole sample of gas at 57 degrees Kelvin occupies 0.5L in a 13.1 ATM atmosphere. Which of these variables represents the pressure?
Answer:
13.1 atmospheric pressure
Question:
Consider the compound with the chemical formula: (NH4)SO4. What is the
molecular mass of this compound?
Answer:
132g/mol
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