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8. What is the percent by mass of lithium nitrate in a mixture of lithium nitrate and lithium carbonate if 0.500 g...
5. Let a square represent an ammonium ion and a circle represent a sulfate ion. Which...
5. Let a square represent an ammonium ion and a circle represent a sulfate ion. Which of the following depicts a small representative volume of a 0.10 M aqueous solution of ammonium sulfate? Water molecules have not been included. For each incorrect answer, state why it is incorrect; be as specific as possible. A в C о ‑ G F None of B these O ODO epresents an ato At 25°C in a 50 mL Erlenmeyer flask were combined 1.050...
A 5.37 g mixture of sodium chloride and sodium carbonate is heated to decompose the sodium...
A 5.37 g mixture of sodium chloride and sodium carbonate is heated to decompose the sodium carbonate into sodium oxide and carbon dioxide according to the following chemical equation. Na2CO3 → Na2O + CO2 The sodium chloride will not decompose. If the final mixture has a mass of 4.03 g, what was the percent sodium carbonate in the original mixture? Hint: Consider the Law of Conservation of Matter - the mass of reactants must equal the mass of products. However,...
A 18.5 g sample of a mixture of magnesium carbonate and calcium carbonate is treated with...
A 18.5 g sample of a mixture of magnesium carbonate and calcium carbonate is treated with excess HCl. The resulting reaction produces 5.23 L of carbon dioxide gas at 28 °C and 753 torr. Write a balanced chemical equation for the reaction that takes place between magnesium carbonate and HCl. Include physical states. chemical reaction: Write a balanced chemical equation for the reaction that takes place between calcium carbonate and HCl. Include physical states. chemical reaction: Calculate the total number...
When a 5.00 g mixture of ammonium sulfate and lithium sulfate is added to an aqueous...
When a 5.00 g mixture of ammonium sulfate and lithium sulfate is added to an aqueous solution containing excess barium nitrate, 9.20 g solid barium sulfate are collected. What mass of ammonium sulfate is present in this mixture?
Calcium oxide (lime) reacts with carbon dioxide to form calcium carbonate (chalk). CaO(s) + CO2(g) →...
Calcium oxide (lime) reacts with carbon dioxide to form calcium carbonate (chalk). CaO(s) + CO2(g) → CaCO3(s) ∆H = –178.4 kJ How many kilojoules of heat are evolved in the reaction of 0.500 kg CaO(s) (molar mass 56.08 g/mol) with an excess of carbon dioxide?
1. A mixture of two oxides (barium oxide and calcium oxide -4.88 g total) was reacted with a quan...
1. A mixture of two oxides (barium oxide and calcium oxide -4.88 g total) was reacted with a quantity of carbon dioxide gas at 35 °C and 746 mmHg in a 1.46 Liter flask. At the reaction's end, the pressure in the flask fell to 252 mmHg. Calculate the percent composition of the mixture. Note: The combination of a metal oxide with carbon dioxide gas will form a carbonate salt as the only product. Lithium hydride (LiH) reacts with water...
1. Convert each of the following names into chemical formulas and then balance the reaction. Make...
1. Convert each of the following names into chemical formulas and then balance the reaction. Make sure you include phases for each reactant and product in the reaction. (s = solid. 1 = liquid, g = gas, aq = aqueous) a. Zinc solid reacts with aqueous silver nitrate to form aqueous zinc nitrate and silver metal. b. Aqueous sodium hydroxide reacts with aqueous oxalic acid to form aqueous sodium oxa- late and liquid water. c. Aqueous lithium phosphate is reacted...
1. Convert each of the following names into the following names into chemical formulas and then balance the reaction. K...
1. Convert each of the following names into the following names into chemical formulas and then balance the reaction. Ke sure you include phases for each reactant and product in the reaction. I = liquid, g = gas, aq = aqueous) 4 dinc solid reacts with aqueous silver nitrate to form aqueous zinc nitrate and silver metal. b. Aqueous sodium hydroxide reacts with aqueous oxalic acid to form aqueous sodium oxa- late and liquid water. c. Aqueous lithium phosphate is...
A 18.88-g sample consisting of a mixture of sodium chloride and potassium sulfate is dissolved in...
A 18.88-g sample consisting of a mixture of sodium chloride and potassium sulfate is dissolved in water. This aqueous mixture then reacts with excess aqueous lead(II) nitrate to form 36.80 g of solid. Determine the mass percent of sodium chloride in the original mixture.
23. An important intermediate reaction in the industrial production process of nitric acid is shown. What...
23. An important intermediate reaction in the industrial production process of nitric acid is shown. What is the theoretical yield of H2O (18.02 g/mol) if 45.0 kg of NH3 (17.04 g/mol) reacts with excess O2 (32.00 g/mol)? NH3(g) + O2(g) → NO(g) + H2O (1) 24. A 10.00 g sample of a hydrocarbon (which is a compound that contains only carbon and hydrogen) was burned in oxygen, and the carbon dioxide and water produced were carefully collected and weighed. The...
5. Let a square represent an ammonium ion and a circle represent a sulfate ion. Which of the following depicts a small representative volume of a 0.10 M aqueous solution of ammonium sulfate? Water molecules have not been included. For each incorrect answer, state why it is incorrect; be as specific as possible. A в C о ‑ G F None of B these O ODO epresents an ato At 25°C in a 50 mL Erlenmeyer flask were combined 1.050...
A 18.5 g sample of a mixture of magnesium carbonate and calcium carbonate is treated with excess HCl. The resulting reaction produces 5.23 L of carbon dioxide gas at 28 °C and 753 torr. Write a balanced chemical equation for the reaction that takes place between magnesium carbonate and HCl. Include physical states. chemical reaction: Write a balanced chemical equation for the reaction that takes place between calcium carbonate and HCl. Include physical states. chemical reaction: Calculate the total number...
1. A mixture of two oxides (barium oxide and calcium oxide -4.88 g total) was reacted with a quantity of carbon dioxide gas at 35 °C and 746 mmHg in a 1.46 Liter flask. At the reaction's end, the pressure in the flask fell to 252 mmHg. Calculate the percent composition of the mixture. Note: The combination of a metal oxide with carbon dioxide gas will form a carbonate salt as the only product. Lithium hydride (LiH) reacts with water...
1. Convert each of the following names into chemical formulas and then balance the reaction. Make sure you include phases for each reactant and product in the reaction. (s = solid. 1 = liquid, g = gas, aq = aqueous) a. Zinc solid reacts with aqueous silver nitrate to form aqueous zinc nitrate and silver metal. b. Aqueous sodium hydroxide reacts with aqueous oxalic acid to form aqueous sodium oxa- late and liquid water. c. Aqueous lithium phosphate is reacted...
1. Convert each of the following names into the following names into chemical formulas and then balance the reaction. Ke sure you include phases for each reactant and product in the reaction. I = liquid, g = gas, aq = aqueous) 4 dinc solid reacts with aqueous silver nitrate to form aqueous zinc nitrate and silver metal. b. Aqueous sodium hydroxide reacts with aqueous oxalic acid to form aqueous sodium oxa- late and liquid water. c. Aqueous lithium phosphate is...
23. An important intermediate reaction in the industrial production process of nitric acid is shown. What is the theoretical yield of H2O (18.02 g/mol) if 45.0 kg of NH3 (17.04 g/mol) reacts with excess O2 (32.00 g/mol)? NH3(g) + O2(g) → NO(g) + H2O (1) 24. A 10.00 g sample of a hydrocarbon (which is a compound that contains only carbon and hydrogen) was burned in oxygen, and the carbon dioxide and water produced were carefully collected and weighed. The...
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