Exam 2: CHEM 120 CHEM120

Exam 2: CHEM 120 / CHEM120

(Latest 2025 / 2026) Intro to General, Organic & Biological Chemistry with Lab | Test Review Questions and Answers | Grade A | 100% Correct (Verified 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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