Next Page Page 4 of 5 Question 4 (1 point) How many moles of H2 gas...

Question

Question

Answer 1

Answer #1

Ans :-

Given mass of Mg = 0.350 g

Because, Number of moles of Mg = Given mass of Mg in g / Gram molar mass of Mg

= 0.350 g / 24.305 g/mol

= 0.0144 mol

The reaction between Mg and HCl is :

Mg + 2HCl ---------------------> MgCl₂ + H₂

From balance chemical equation it is clear that

1 mole of Mg gives = 1 mole of H₂

Therefore,

0.0144 mol of Mg gives = 0.0144 mole of H₂

So,

Number of moles of H₂ gas produced = 0.0144 mol

Answer 2

Similar Homework Help Questions

1)Use: 2Al + 6HCl → 3H2 + 2AlCl3 a) If 5.34 g H2 are formed, how...

1)Use: 2Al + 6HCl → 3H2 + 2AlCl3 a) If 5.34 g H2 are formed, how many grams of Al reacted? b) If 2.500 kg Al reacts, how many moles of H2 are produced? c) If 6.13 moles of Al react, how many moles of HCl need to react? d) If 125.00 moles HCl reacts, how many mg of AlCl3 are produced? e) If 4.81 x 1024 formula units of AlCl3 are produced, how many moles of HCl reacted?
8. i) How many moles of Neon gas will occupy a container with a volume of...

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?...
1. Given the equation: Mg + 2 HCl → MgCl2 + H2 . How many moles...

1. Given the equation: Mg + 2 HCl → MgCl2 + H2 . How many moles of H2 is produced when one mole of Mg is reacted with HCI? Select one: A. One mole of H2 B. Two moles of H2 2. The vapor pressure of water at 23.0°C is 21.0 mm Hg, what is the vapor pressure of water in atmosphere? Select one: A. 0.0276 B. 0.03

How many liters of H2 gas would be produced when a 100.0 mL solution of 165.8...

How many liters of H2 gas would be produced when a 100.0 mL solution of 165.8 mM HCl is reacted with excess zinc as described by the reaction below? Assume a temperature of 31.2C and a pressure of 1.199 atm. Express your answer in liters using at least three significant figures. Zn (s) + 2 HCl (aq) ⟶ ZnCl2 (aq) + H2 (g)
Using the following reaction, how many moles of gallium chloride will be produced if 5.42×10^-5 moles...

Using the following reaction, how many moles of gallium chloride will be produced if 5.42×10^-5 moles of gallium metal react with excess hydrochloric acid? Be sure to carefully balance the equation first. Ga(s) + HCL(aq) -------> GaCl3(aq) + H2(g)
1. If 2.6 moles of Mg were mixed with HCl, how many moles of H2 gas would you expect to be produced? NG 3 2. If th...

1. If 2.6 moles of Mg were mixed with HCl, how many moles of H2 gas would you expect to be produced? NG 3 2. If the ambient pressure is 1.009 atm and the temperature is 298 K, what volume (in liters) would moles of H, occupy? NG| 3

Next Page Page 5 of 5 uestion 5 (1 point) What volume (V) in Liters would...

Next Page Page 5 of 5 uestion 5 (1 point) What volume (V) in Liters would 1.963 moles of H2 gas occupy under the following conditions? Ideal Gas Constant= 0.0821 L'Atm/mole*K Pressure = 0.940 Atm Temperature = 400.0 K Your Answer: units Answer Page 5 of 5
For the reaction H2 + Cl2 = 2HCl how many moles HCl will be produced from...

For the reaction H2 + Cl2 = 2HCl how many moles HCl will be produced from {m} g of H2. The reaction occurs in the presence of excess Cl2
How many moles of H2 can be produced from x grams of Mg in magnesium-aluminum alloy?

A 0.250-g sample of a magnesium-aluminum alloy dissolves completely in an excess of HCl(aq). When the liberated H2(g) is collected over water at 29 degrees Celsius and752 torr, the volume is found to be 301 mL. The vapor pressure of water at 29 degrees Celsius is 30.0 torr.How many moles of H2 can be produced from x grams of Mg in magnesium-aluminum alloy? The molar mass of Mg is 24.31 g/mol.Express your answer in terms of x to four decimal...

determine how many grams of hydrogen gas are produced from 27.2 g of HCl 4. Zinc...

determine how many grams of hydrogen gas are produced from 27.2 g of HCl 4. Zinc metal reacts with hydrochloric acid giving off hydrogen gas, H2 according to the equation: H2() ZnCl2 (aq) + Zn )+2HCI (n) Balance the equation b. Determine how many moles of zinc are required to produce 6.25 moles of hydrogen gas? Imol Zn Imol ta Le.25 mol tH Le 25 me Zn c. Determine how many grams of zinc are required to produce 4.5 moles...