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O Please selectes) Selectes) Chemistry Q16 Stoichiometry 25 Points A sample of 42.5 g of Mg...
please help!! thank you 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 of the gas? Volume...
Q4 Solution Stoichiometry 10 Points A 25.0 ml of 0.527 M sodium sulfide(aq) and 55.0 ml of 0.243 Miron (III) nitrate are mixed together. What mass of solid iron (III) sulfide can be formed? What is the limiting reagent? Show your work for full credit. 3 Na2S (aq) + 2 Fe(NO3)3 (aq) ► Fe2S3 (s) + 6 NaNO3 (aq) The limiting reagent is Enter your answer here The theoretical yield of iron sulfide is Enter your answer here Please select...
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?
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...
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?
Additional Exercise 14.78 For the equation below: Mg(s) + 2 HCl(aq) MgCl2(aq) + H2(g) (a) How many moles of hydrogen will be liberated from 137.1 mL of 4.84 M HCl reacting with an excess of magnesium? mol H2 the tolerance is +/-2% (b) How many liters of hydrogen gas (H2) measured at 37 °C and 710 torr will be obtained? L H2 the tolerance is +/-2%
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?
Complete and balance the reaction below: Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (s) How many moles of H2 gas will be produced from 2 mol of HCl ? 2HCl ---à H2 + Cl2 1 mol of H2 gas will be produced from 2 moles HCl. How would you determine the volume of a 125mL Erlenmeyer flask that you will use for the experiment? (a 125 mL flask does not have a total volume of 125 mL)...
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...
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...