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Stoichiometry

Q. Using the properly balanced chemical equation: S8 (s) + 24 F2 (g) → 8 SF6 (g). How many grams of S8 (g) will react completely with 30.0 g of F2 (g)? a. 8.42 g b. 45.3 g c. 1.05 g d. 0.178 g e. 4850 g

Solved • Apr 16, 2020

Stoichiometry

Q. For the properly balanced chemical reaction: N2 (g) + 3 H2 (g) → 2 NH3 (g). If 5.00 mol of N2 (g) are mixed with 30.0 moles of H2 (g), how many moles of H2 are left unreacted? a. 30.0 moles b. 3.00 moles c. 5.00 moles d. 15.0 moles e. None of the answers is correct

Solved • Apr 16, 2020

Stoichiometry

Q. Consider the following reaction : Ca(OH)2(aq)+HF→H2O+CaF2 a. If 25.0 g of water was produced, how many grams of calcium hydroxide will be needed

Solved • Apr 15, 2020

Stoichiometry

Q. What is the minimum amount of 5.5 M H2SO4 necessary to produce 13.0 g of H2(g) according to the reaction? 2Al(s)+3H2SO4(aq)→Al2(SO4)3(aq)+3H2(g)

Solved • Apr 14, 2020

Stoichiometry

Q. The reaction of coal and water at a high temperature produce a mixture off hydrogen and carbon monoxide gases. This mixture is known as synthesis gas ( or syngas ). What mass of water is required for the formation of 175 grams of carbon monoxide

Solved • Apr 14, 2020

Stoichiometry

Q. A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 750. mL of a solution that has a concentration of Na+ ions 0.600 M? Express your answer to three significant figures and include the appropriate units.

Solved • Apr 13, 2020

Stoichiometry

Q. How many grams of CaCl2 are formed when 30.00 mL of 0.00237 M ca(OH)2 reacts with excess Cl2 gas? 2 Ca(OH)2(aq) + 2 Cl2(g) → Ca(OCl)2(aq) + CaCl2(s) + 2 H2O(l) a) 0.00395 b) 0.00789 g c) 0.0253 g d) 0.0158 g

Solved • Apr 13, 2020