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please help!! thank you A sample of 42.5 g of Mg metal reacts with 1.50 L...
O Please selectes) Selectes) Chemistry Q16 Stoichiometry 25 Points A sample of 42.5 g of Mg metal reacts with 1.50 L of 6.00 M HCl(aq) to form H2 gas. Mg(s) + 2 HCl(aq) MgCl2 (aq) + H2(g) What is the limiting reagent? Limiting Reagent = Enter your answer here How many mol of H2 gas are formed? Mol H2 = Enter your answer here mol If the H2 gas is produced at 35°C and 765 mmHg what is the volume...
Mg metal reacts with HCl to produce hydrogen gas. Mg(s)+2HCl(aq)→MgCl2(aq)+H2(g) How many grams of magnesium are needed to prepare 6.90 L of H2 at 775 mmHg and 20 ∘C?
Mg metal reacts with HCl to produce hydrogen gas. Mg(s)+2HCl(aq)→MgCl2(aq)+H2(g) What volume of hydrogen at 0 ∘C and 1.00 atm (STP) is released when 9.40 g of Mg reacts?
An oxygen gas container has a volume of 20.0 L. How many grams of oxygen are in the container if the gas has a pressure of 887 mmHg at 24 ∘C? Mg metal reacts with HCl to produce hydrogen gas. Mg(s)+2HCl(aq)→MgCl2(aq)+H2(g) What volume of hydrogen at 0 ∘C and 1.00 atm (STP) is released when 9.40 g of Mg reacts? How many grams of magnesium are needed to prepare 6.90 L of H2 at 775 mmHg and 20 ∘C?
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...
500.0 mL of 0.500 M HCl solution reacts with 5.00 g of Mg to give hydrogen gas and aqueous magnesium chloride. The volume of H2(g) collected is 1.00L at 2.5atm, and 300K. Calculate the percent yield MgCl2
1.00 M HCL t2 = 60.06 °C t1 = 21.62 °C Mass Mg = .500 g For reaction 1: MgO(s) + 2 HCl(aq) ----> MgCl2(aq) + H20(1). 1.6 Enter q (in kJ). 1.74 kJ Computer's answer now shown above. You are correct. Previous Tries Your receipt no. is 158-3788 ? 1.7 Enter AH (in kJ). -1.74 kJ Computer's answer now shown above. You are correct. Previous Tries Your receipt no. is 158-1858 ? 1.8 Enter the number of moles of...
6. Metallic Mg reacts with hydrochloric acid according to the following equation: Mg(s) + 2 HCl (aq) → MgCl2 (aq) + H2(g) The enthalpy change associated with this reaction can be determined with an ice calorimeter. If 14.71 g of ice are melted when 0.2649 g of Mg reacts with excess hydrochloric acid, what is AH (in kJ/mol Mg) for the reaction written above? The heat of fusion of ice is 333 J/g.
Suppose you are performing a gas-producing reaction to experimentally determine the molar volume of the gas at STP. Mg(s) + 2 HCl(aq) + MgCl2 (aq) + H2(g) A sample of 0.0883 g of Mg, which has a molar mass of 24.31 g/mol, produces 82.5 mL of H2 gas. The gas is collected over water at an atmospheric pressure of 774.5 mm Hg at 22 °C, at which the vapor pressure of water is 19.8 mm Hg. What is the experimental...
QUESTION 2 When 56.68 g of magnesium metal reacts with excess HCl(aq) to form hydrogen gas and magnesium chloride, how many liters of H2 gas are produced at STP? (Hint: start by writing a balanced chemical reaction.) QUESTION 3 Methane (CH4) burns in air to form carbon dioxide and water as shown below. CH4(g)2 O2(g)CO2(g)2 H20(0) If a sample of methane occupies 344. mL at 1.37 atm, what volume (in mL) of oxygen gas at the same temperature and pressure...