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If 0.42 moles of aluminum react with excess hydrochloric acid, what is the volume of hydrogen...
8 pts 25. Aluminum metal (0.100 mol) and a volume of aqueous hydrochloric acid that contains 0.500 mol of HCl are combined and react to completion. How many liters of hydrogen gas, measured at STP are produced? Al(s) + HCl(aq) - AICI3(aq) + H2(g) (unbalanced) 4.48 L of H2 5.60 L of H2 224 L of H2 3.36 L of H2 6.72 L of H2
Some two equation/Two unkown Problem Magnesium and aluminum react with acid to give hydrogen gas. What volume of hydrogen gas measured at 25°C and a pressure of 0.985 atm can be obtained from 4.00 g of an alloy that is 20.0 Mg and 70.0 Al? Mg (s) 2 H (aq) H2 (g) Mg (aq) +2 2 Al (s) 6 H (aq) 3 H2 (g) 2 Al 3 (aq) 1. A 2.05 g sample of an iron-aluminum alloy (ferroaluminum) is dissolved...
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-aluminum alloys are commonly used in aircraft construction. When treated with acid, both metals react to form hydrogen gas, as shown in the unbalanced chemical equations below. A 1.000 g sample of alloy produces 0.107 g of H2 (g) when reacted with excess HCl (aq). What is the percent composition by mass of Al in the alloy? Al (s) + HCl (aq) à AlCl3 (aq) + H2 (g) Mg (s) + HCl (aq) à MgCl2 (aq) + H2 (g)
When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2 Al(s) + 6 HCl(aq) — 2 AICI, (aq) + 3H2(g) What volume of H, (g) is produced when 9.00 g Al(s) reacts at STP? volume of H, (g):
When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2Al(s)+6HCl(aq)⟶2AlCl3(aq)+3H2(g) What volume of H2(g) is produced when 3.90 g Al(s) reacts at STP?
8. i) How many moles of Neon gas will occupy a container with a volume of 2.5 L at a temperature of 31.5°C and a pressure of 912 torr? ii) What is the density of the gas? 9. A tank of compressed mixed gases contains 0.40 moles of Hz (hydrogen), 1.3 moles of NO2 (nitrogen dioxide), and 0.80 moles of Ar (argon). The total pressure in the tank is 2.8 atm. What is the partial pressure of the Hz gas?...
questions 4 through 8 use the following reaction between Aluminum and hydrochloric acid 2 Al(s) + 6 HCI (aq) → 2 AICI: (aq) + 3 H2(g) When 3.95 moles aluminum reacts with excess hydrochloric acid how many moles of hydrogen gas form? When 10.6 moles hydrochloric acid reacts with excess aluminum how many moles of hydrogen gas form? When 3.95 moles aluminum reacts with 10.6 moles hydrochloric acid how many moles of hydrogen gas form? What is the theoretical yield...
1.) Aluminum reacts with hydrochloric acid to produce aluminum chloride and hydrogen gas. 2Al(s) + 6HCl(aq) -> 2AlCl3(aq) + 3H2(g) What mass of H2(g) is required from the reaction of 0.75 g of Al(s) with excess hydrochloric acid? 2.) The reaction of coal and water at a high temperature produces a mixture of hydrogen and carbon monoxide gases. This mixture is known as synthesis gas (or syngas). What mass of water is required for the formation of 175 grams of...
1. A sample of iron is reacted with excess hydrochloric acid and the hydrogen is collected in a 10.L flask at 25°C, where it exerts 73 torr of pressure. What was the mass, in grams, of the iron that was dissolved in the HCl? Fe(s) + 2HCl(aq) --> FeCl2(aq) + H2(g) 2. Nitrogen monoxide reacts with oxygen to produce nitrogen dioxide in the reaction shown below. If you mix oxygen and nitrogen monoxide at the correct stoichiometric ratio, and both...