A common way to make hydrogen gas in the laboratory is to react a metal such...
A common way to make hydrogen gas in the laboratory is to react a metal such as zinc with hydrochloric acid. Suppose this reaction was carried out in a sealed flask with a pressure sensor connected. Before the reaction, the pressure sensor read 39.82 mmHg. After the reaction was complete, the pressure sensor read 705.89 mmHg. The volume of the flask was 155.2 mL and the temperature was 29.2ºC. What is the density (in g/L) of this gas?
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A common way to make hydrogen gas in the laboratory is to react
a metal such...
Hydrogen gas is produced by the reaction of hydrochloric acid, HCl, on zinc metal. 2HCl (aq)...
Hydrogen gas is produced by the reaction of hydrochloric acid, HCl, on zinc metal. 2HCl (aq) + Zn (s) --> ZnCl2 (aq) + H2 (g) The gas is collected over water. If 106 mL of gas is collected at 28C and 775 mmHg, what is the mass of hydrogen collected? (vapor pressure of water at 28C is 25.6 mmHg)
A sample of zinc metal is allowed to react completely with an excess of hydrochloric acid:...
A sample of zinc metal is allowed to react completely with an excess of hydrochloric acid: Zn(s) + 2 HCl(aq) → ZnCl2(aq) + H2(8) look GO The hydrogen gas produced is collected over water at 25.0°C. The volume of the gas is 8.90 L, and the atmospheric pressure is 0.951 atm. Calculate the amount of zinc metal in grams consumed in the reaction. rint rences (Vapor pressure of water at 25°C = 23.8 mmHg.) gZn
Hydrogen gas can be produced in the laboratory through the reaction of magnesium metal with hydrochloric...
Hydrogen gas can be produced in the laboratory through the reaction of magnesium metal with hydrochloric acid: Mg(s)+2HCl(aq)→MgCl2(aq)+H2(g) What is the volume, in liters, of H2 gas produced at 22 ∘C and 840 mmHg from the reaction of 32.0 g of Mg?
Magnesium metal reacts with hydrochloric acid to give hydrogen gas. Mg + 2 HCl → MgCl2...
Magnesium metal reacts with hydrochloric acid to give hydrogen gas. Mg + 2 HCl → MgCl2 + H2 Use the following reaction information to answer the subsequent questions. Show all of your work. 92 mm Length of Magnesium ribbon: Barometric Pressure: 762.9 mmHg Water Temperature: 29 °C Initial Gas Volume: 0.00 mL Final Gas Volume: 67.35 mL 0.7559 Mass = Length (in mm) x (1000 mm) 1. Magnesium is usually found in the laboratory as a ribbon strip. Find the...
UYURURUle? T S OF Hydrogen gas are in the container if the ratio of hydrogen to...
UYURURUle? T S OF Hydrogen gas are in the container if the ratio of hydrogen to oxygen is 2.1 with a pressure of 1.00 atm? 13. 8.500 g grams of Zinc metal are placed into a flask containing 100.0 mL of 3.00 M hydrochloric acid. What volume of hydrogen das can be generated at 1.000 atm and 25.0 "Cif the reaction is allowed to go to completion? 14. 10.000 grams of zinc metal are placed into a flask containing 100.0...
14. The reaction of magnesium metal with hydrochloric acid produces hydrogen gas as a product. I...
14. The reaction of magnesium metal with hydrochloric acid produces hydrogen gas as a product. I would like to collect 125 mL of hydrogen gas from the experiment. The temperature of the lab is 23.5°C and the pressure is 762 mmHg. How many grams of magnesium metal should I use if the hydrochloric acid is kept in excess? Mg(s) + 2 HCl(aq) MgCl2(aq) + H2(g)
#1. Zinc metal is added to hydrochloric acid to generate hydrogen gas and is collected over...
#1. Zinc metal is added to hydrochloric acid to generate hydrogen gas and is collected over a liquid whose vapor pressure at 18.4 °C is 59.7 torr. The volume of the mixture is 7.7 L and its total pressure is 0.86 atm. Determine the partial pressure of the hydrogen gas in this mixture. Respond with the pressure to the nearest tenth of a torr. #2. Zinc metal is added to hydrochloric acid to generate hydrogen gas and is collected over...
Hydrogen gas was produced by reacting 0.976 g of zinc metal with excess hydrochloric acid. Write...
Hydrogen gas was produced by reacting 0.976 g of zinc metal with excess hydrochloric acid. Write a balanced reaction equation (include states). If 376 mL of hydrogen gas is collected over water at 25 °C at a total pressure of 751 mm Hg, what was the experimental molar mass of Zn? 1. Write a balanced reaction equation (include states). 2. What was the experimental molar mass of Zn? Answer to the correct number of significant figures. 3. Calculate the %...
10. Zinc metal reacts with hydrochloric acid to form zinc chloride and hydrogen gas. a. Write...
10. Zinc metal reacts with hydrochloric acid to form zinc chloride and hydrogen gas. a. Write a balanced reaction (2 pts) b. How many moles of HCl are consumed per 0.4 mole of zinc? (3pts) C. What volume of hydrogen gas is produced at standard temperature and pressure per 2.5 g of zinc used? (6 pts)
Q2 part1. Hydrogen gas can be readily prepared by reacting zinc metal with hydrochloric acid: Zn(s)...
Q2 part1. Hydrogen gas can be readily prepared by reacting zinc metal with hydrochloric acid: Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g) A sample of zinc metal was decomposed in hydrochloric acid and the hydrogen gas was collected over water. The volume of gas collected is 0.798 L at 25oC and a total pressure of 735 torr. How many grams of zinc were decomposed assuming there is an excess of hydrochloric acid? [Hint: the vapor pressure of water at 25oC...
A sample of zinc metal is allowed to react completely with an excess of hydrochloric acid: Zn(s) + 2 HCl(aq) → ZnCl2(aq) + H2(8) look GO The hydrogen gas produced is collected over water at 25.0°C. The volume of the gas is 8.90 L, and the atmospheric pressure is 0.951 atm. Calculate the amount of zinc metal in grams consumed in the reaction. rint rences (Vapor pressure of water at 25°C = 23.8 mmHg.) gZn
Magnesium metal reacts with hydrochloric acid to give hydrogen gas. Mg + 2 HCl → MgCl2 + H2 Use the following reaction information to answer the subsequent questions. Show all of your work. 92 mm Length of Magnesium ribbon: Barometric Pressure: 762.9 mmHg Water Temperature: 29 °C Initial Gas Volume: 0.00 mL Final Gas Volume: 67.35 mL 0.7559 Mass = Length (in mm) x (1000 mm) 1. Magnesium is usually found in the laboratory as a ribbon strip. Find the...
UYURURUle? T S OF Hydrogen gas are in the container if the ratio of hydrogen to oxygen is 2.1 with a pressure of 1.00 atm? 13. 8.500 g grams of Zinc metal are placed into a flask containing 100.0 mL of 3.00 M hydrochloric acid. What volume of hydrogen das can be generated at 1.000 atm and 25.0 "Cif the reaction is allowed to go to completion? 14. 10.000 grams of zinc metal are placed into a flask containing 100.0...
14. The reaction of magnesium metal with hydrochloric acid produces hydrogen gas as a product. I would like to collect 125 mL of hydrogen gas from the experiment. The temperature of the lab is 23.5°C and the pressure is 762 mmHg. How many grams of magnesium metal should I use if the hydrochloric acid is kept in excess? Mg(s) + 2 HCl(aq) MgCl2(aq) + H2(g)
10. Zinc metal reacts with hydrochloric acid to form zinc chloride and hydrogen gas. a. Write a balanced reaction (2 pts) b. How many moles of HCl are consumed per 0.4 mole of zinc? (3pts) C. What volume of hydrogen gas is produced at standard temperature and pressure per 2.5 g of zinc used? (6 pts)
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