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CHEM104 / CHEM 104 Modules 1–7 (2026–2027 Updated Study Bundle) | General Chemistry II with Lab | Practice Questions & Guided Solutions – Portage Learning

CHEM104 CHEM 104 · Other

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Health Care exam material, 34 pages. Originally published on StudyMerit.

Pages
34
Academic year
2025/2026
Language
English

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Page 1 of 34 PORTAGE LEARNING CHEM 104 FINAL EXAM NEWEST 2026 ACTUAL EXAM QUESTIONS AND CORRECT DETAILED AN SWERS (VERIFIED ANSWERS) ALL ANSWERED { 7 0 Q & A} ALREADY GRADED A+ | BRAND NEW! | 100% GUARANTEED PASS What is the molarity of a solution that contains 46 grams of Na2SO4 (Mw = 142 g/mol) dissolved in enough water to make 750 mL of solution? a. 2.3M b. 0.60M c. 0.52M d. 0.43M e. 0.19M - ✔ ✔ ✔ Correct Answer > d. 0.43M How many moles of hydroxide ions are there in 25 mL of 0.010M solution of Ba(OH)2? a. 7.5 x 10 - 1 mol b. 5.0 x 10 - 1 mol c. 2.5 x 10 - 1 mol

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Page 2 of 34 d. 5.0 x 10 - 4 mol e. 2.5 x 10 - 4 mol - ✔ ✔ ✔ Correct Answer > d. 5.0 x 10 - 4 mol Imagine that you go into the lab and measure 35 mL of a 0.60M stock solution. You pour the 35 mL of stock solution into a beaker and dilute the solution by adding another 35 mL of water. What is the molarity of the new solution? a. 1.2M b. 0.60M c. 0.30M d. 0.15M e. 0.040M - ✔ ✔ ✔ Correct Answer > c. 0.30M What is the correct expression for the equilibrium constant, K, for the following reaction? P4(s) + 5O2(g) ⇌ P4O10(s) - ✔ ✔ ✔ Correct Answer > K= 1/[O2]^5 If for a certain gas phase reaction mixture Q = 1, what can you say about the reaction? a. The reaction will proceed towards the product to achieve equilibrium. b. The equilibrium position will be determined by the value of K. c. The reaction will proceed to the left to achieve equilibrium.

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Page 3 of 34 d. The reaction is already at equilibrium. e. The reaction will go to completion. - ✔ ✔ ✔ Correct Answer > b. The equilibrium position will be determined by the value of K. If we increase the volume of the container, then the equilibrium will _______ and the partial pressure of X2(g) will ____________. a. Shift to the left, decrease b. Shift to the left, increase c. Shift to the right, decrease d. Shift to the right, increase e. Not shift, not change - ✔ ✔ ✔ Correct Answer > a. Shift to the left, decrease If you decrease the temperature of this reaction the equilibrium will shift to the________ and the value of K will __________. a. right, not change b. right, decrease c. right, increase d. left, decrease e. left, increase - ✔ ✔ ✔ Correct Answer > c. right, increase Which of the following combinations represent a weak acid and weak base conjugate pair?

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