14. In an explosive chemical reaction, potassium metal reacts with water to form potassium hydroxide and hydrogen gas as shown below. Suppose that 1.73 grams of potassium reacts with 3.00 grams of water. Which compound is the limiting reactant? 2K + 2H;0 → 2KOH + H22)

Honors Chemistry Chapter 9 Name/Date 3. Gold is very valuable because it does not oxidize easily. It can be oxidized by reacting it with nitric acid as shown below: Au(s) + 4H'(aq) + NO: (aq) → NO(g) + 2H:0(g) + Au³ (aq) 3a. If 30 grams of gold react with 3.4 grams of nitrate ion, which reactant is limiting?. 3b. What is the theoretical yield?. 4. Lead (II) nitrate reacts with sodium chloride according to the equation below: Pb(NO.): + NaCl → PbCla + NANO. 4a. If 8.3 grams of lead (II) nitrate react with 5 grams of sodium chloride, which material would be the limiting reactant? 4b. What is the theoretical yield?

Prior to their phaseout in the 1980s, chemicals containing lead were commonly added to gasoline as anti-knocking agents. A 4.887 g sample of one such additive containing only lead, carbon, and hydrogen was burned in an oxygen-rich environment. The products of the combustion were 5.319 g CO2(g) and 2.722 g H2O(g). Determine the empirical formula of the gasoline additive.

Consider the following unbalanced chemical equation: Fe3O4 (aq) + CO (g) → CO2 (g) + Fe (s) What will be the coefficient in front of CO in the balanced chemical equation? If there is no coefficient in front of CO in the balanced equation, enter 1 as the answer.

[Tutorial: Limiting reactant stoichiometry] This question will walk you through the steps of calculating the mass of products produced based on your determination of the limiting reactant.   b) Step 2a: Use dimensional analysis to determine the theoretical yield of the product. Calculate the theoretical yield in grams Al₂O₃ from the complete reaction of 64.7 grams Al according to the following balanced chemical equation: 2 Al(s) + Fe₂O₃(s) → Al₂O₃(s) + 2 Fe(s) c) Calculate the theoretical yield in grams Al₂O₃ from the complete reaction of 201 grams Fe₂O₃ according to the following balanced chemical equation: 2 Al(s) + Fe₂O₃(s) → Al₂O₃(s) + 2 Fe(s) d) Which of the following substances is the limiting reactant? e) What is the mass in grams of the excess Fe₂O₃ remaining after the partial reaction of 201 g Fe₂O₃ with 64.7 g Al? Give your answer to three significant figures.

The combustion of gasoline produces carbon dioxide and water. Assume gasoline to be pure octane (C8H18) and calculate how many kilograms of carbon dioxide are added to the atmosphere per 5.4 kgkg of octane burned. (Hint: Begin by writing a balanced equation for the combustion reaction.)

A sample of a substance (containing only C, H, and N) is burned in oxygen.3.375 g of CO2, 4.935×10-1 g of H2O and 6.575×10-1 g of NO are the sole products of combustion.What is the empirical formula of the compound?   What was the mass of the initial sample burned?

Balance the following chemical equation (using the number "1" if the blank normally is left unfilled). Na (s) + NaF (s) F₂ (g) ---->

[References] ot A sample of calcium metal with a mass of 2.06 g was reacted with excess oxygen. The following equation represents the reaction that took place: ot 2Ca(s) + O2 (g) → 2CaO(s) The isolated product (CaO) weighed 2.25 g. What was the percentage yield of the reaction? ot ot Percentage yield ot

Consider the general chemical equation 3A+B→2C. Part A. If 1.45 g of A reacts with 1.75 g of B, what is the mass of C? Express your answer with the appropriate units. Part B. If 4.70 g of A reacts to produce 8.95 g of C, what is the mass of B? Express your answer with the appropriate units.