How many grams of silver will be formed when 27.9 g of copper reacts with excess

Question

How many grams of silver will be formed when 27.9 g of copper reacts with excess silver nitrate, according to the balanced equation below? 2AgNO_3 rightarrow Cu rightarrow Co(NO_3)_2 + 2Ag a. 23.7 g b. 94.7 g c. 32.9 g d. 8.22 g e. 47.4 g How many grams of aluminum are present in 4.04 g of aluminum iodide. All_3? a. 2.02 g Al b. 3.33 g Al c. 0.858 g Al d. 0.267 g Al e. 0.708 g Al What is the coefficient for potassium hydroxide when the following equation is balanced? _H_2SO_4+__KOH rightarrow__K_2SO_4^+ ___H_2O a. 6 b. 2 c. 4 d. 1 e. 3

Explanation / Answer

1) according to balanced reaction

63.55 g Cu forms 2 x 107.87 g Ag

27.9 g Cu forms 27.9 x 2 x 107.87 / 63.55 = 94.7 g Ag

answer = option b = 94.7 g Ag

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