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Chemistry 120: Exam 2 2025/2026 Exam
Questions and Verified Answers |
Already Graded A+
Solution= - 🧠 ANSWER ✔✔Solute + Solvent
Express the amount of solute present in a given amount of solvent as.. - 🧠
ANSWER ✔✔concentration
A common concentration unit is.. - 🧠 ANSWER ✔✔Molarity (M)
Molarity= - 🧠 ANSWER ✔✔Moles of solute/ Liter of solution
175 g MgCl2 (Molar mass= 95.31 g/mol) are dissolved in 850.0 mL H2O.
A.) What is the molarity of the MgCl2?
B.) What is the molarity of the Cl- ion? - 🧠 ANSWER ✔✔
Dilution: - 🧠 ANSWER ✔✔sometimes solutions must be diluted in order to obtain
a concentration which is useful in lab.
What is the equation used for dilution? - 🧠 ANSWER ✔✔M1V1=M2V2
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STATEMENT. ALL RIGHTS RESERVED
, 2
25.0 mL of 12.1 M HCL is diluted to 500.0 mL. Calculate the final M.
How many mL of a 15.9 M HNO3 solution are required to prepare 2.00 L of a 6.00
M HNO3 solution? - 🧠 ANSWER ✔✔
A student has 50.0 mL of a 1.40 M CuSO4 solution. How much water must be
aded in order to prepare a 0.200 M CuSO4 solution? - 🧠 ANSWER ✔✔
100.0 mL of 6.0 M HCL are added to 50.00 mL of 3.0 M HCl. What is the
molarity of the resulting solution? - 🧠 ANSWER ✔✔
What is a chemical equation? - 🧠 ANSWER ✔✔a shorthand expression for
describing a chemical change.
A chemical equation consists.. - 🧠 ANSWER ✔✔of a list of the reactants involved,
a reaction arrow " ->" indicating the direction of the reaction and a list of products
formed.
P4 + O2 -> P2O5 - 🧠 ANSWER ✔✔P4 + 5O2 -> 2P2O5
CuCl2 + Al -> AlCl3 + Cu - 🧠 ANSWER ✔✔3 CuCl2 + 2Al -> 2AlCl3 + 3 Cu
C4H10 +O2 -> CO2 + H2O - 🧠 ANSWER ✔✔2C4H10 + 13 O2 -> 8 CO2 + 10
H2O
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COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
Chemistry 120: Exam 2 2025/2026 Exam
Questions and Verified Answers |
Already Graded A+
Solution= - 🧠 ANSWER ✔✔Solute + Solvent
Express the amount of solute present in a given amount of solvent as.. - 🧠
ANSWER ✔✔concentration
A common concentration unit is.. - 🧠 ANSWER ✔✔Molarity (M)
Molarity= - 🧠 ANSWER ✔✔Moles of solute/ Liter of solution
175 g MgCl2 (Molar mass= 95.31 g/mol) are dissolved in 850.0 mL H2O.
A.) What is the molarity of the MgCl2?
B.) What is the molarity of the Cl- ion? - 🧠 ANSWER ✔✔
Dilution: - 🧠 ANSWER ✔✔sometimes solutions must be diluted in order to obtain
a concentration which is useful in lab.
What is the equation used for dilution? - 🧠 ANSWER ✔✔M1V1=M2V2
1
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
, 2
25.0 mL of 12.1 M HCL is diluted to 500.0 mL. Calculate the final M.
How many mL of a 15.9 M HNO3 solution are required to prepare 2.00 L of a 6.00
M HNO3 solution? - 🧠 ANSWER ✔✔
A student has 50.0 mL of a 1.40 M CuSO4 solution. How much water must be
aded in order to prepare a 0.200 M CuSO4 solution? - 🧠 ANSWER ✔✔
100.0 mL of 6.0 M HCL are added to 50.00 mL of 3.0 M HCl. What is the
molarity of the resulting solution? - 🧠 ANSWER ✔✔
What is a chemical equation? - 🧠 ANSWER ✔✔a shorthand expression for
describing a chemical change.
A chemical equation consists.. - 🧠 ANSWER ✔✔of a list of the reactants involved,
a reaction arrow " ->" indicating the direction of the reaction and a list of products
formed.
P4 + O2 -> P2O5 - 🧠 ANSWER ✔✔P4 + 5O2 -> 2P2O5
CuCl2 + Al -> AlCl3 + Cu - 🧠 ANSWER ✔✔3 CuCl2 + 2Al -> 2AlCl3 + 3 Cu
C4H10 +O2 -> CO2 + H2O - 🧠 ANSWER ✔✔2C4H10 + 13 O2 -> 8 CO2 + 10
H2O
2
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
