A piece of magnesium reacts with an aqueous solution of HCl to produce H2 gas. The hydrogen gas is collected over the HCl solution at a temperature of 22.0°C. If the total pressure of the system is 0.957 atm, and the volume of gas collected is 710. mL, what are the partial pressure and the mass of H2 produced? (You may assume that the dissolved HCl has no effect on the vapor pressure of water, which is 19.8 torr at 22.0°C.)

Q: What is the mole fraction of nitrogen in a mixture of Ar, N2, and He in which the partial pressure…

A:

Q: List major sources (biogenic and anthropogenic) of ammonia in the air. What happen to ammonia when…

A: Nitrogen is the largest component of air gases and so is its compound ammonia. Ammonia pollution is…

Q: 40.0 mL of a 3.79 M solution of H2O2 decomposes according to this reaction: 2 H2O2 (aq) → 2 H20(1) +…

A: The reaction taking place is given as, => 2 H2O2 (aq) ------> 2 H2O (l) + O2 (g)  Given :…

Q: 1) A gas mixture at 20.0°C and 2.0 atm contains 0.40 mol of H2, 0.15 mol of 02, and 0.50 mol of N2.…

A: 1- First calculate the mole fraction of H2 gas :  Total moles = ( moles of Hydrogen + moles of…

Q: A 5.50-mole sample of NH3 gas is kept in a 1.85-L container at 309 K. If the van der Waals equation…

A:

Q: Vhat is the equivalent value in kPa of 0.32 mmHg?

A: The question is based on the concepts of unit conversion. we have been given pressure in  millimetre…

Q: A 2.00 L reaction container at 25.0 °C contains CO2 (g) and O2 (g). The total pressure of the gases…

A: In this question, total volume of the container is to be determined on addition of 15.0 g of…

Q: 24.00 g of solid calcium carbonate completely decomposes at 579 °C in a 12.000 L sealed vessel. The…

A: Given: 24.00 g of solid calcium carbonate 579 °C = 579 + 273.15 = 852.15 K 12.000 L

Q: What is the pressure inside a 250 mL stoppered flask that contains 0.040 mol of NH3(g) at 15 °C?

A:

Q: If 27.2 grams of potassium carbonate is reacted with 125 ml of .700 M hydrobromic acid in 3.5 L…

A: K2CO3 + 2 HBr ==> 2 KBr + CO2 + H2O  Given mass of K2CO3 = 27.2 g  Given volume of HBr = 125 ml =…

Q: 4. List major sources (biogenic and anthropogenic) of ammonia in the air What happen to ammonia when…

A: The major sources of NH3 emissions in air is agriculture, including animal husbandry NH3-based…

Q: Given the following equation: Mg(s) + 2HCl(aq) --> MgCl2(aq) + H2(g) After the reaction was…

A:

Q: Sodium metal reacts with water to produce hydrogen gas according to the following equation: 2Na(s) +…

A: Given : Balanced chemical equation.  To find : Partial pressure of H2 and mole of H2. Solution : As…

Q: A balloon is sealed with 1.00 mol argon in a laboratory. The laboratory workspace is at sea level…

A: At sea level, atmospheric pressure is equal to 1 atm and room temperature is equal to 298 k. Argon…

Q: 4. How many moles of helium are contained in 890.0 mL at 21.0 °C and 99.97 kPa pressure?

A:

Q: What volume of ammonia (NH)3 is formed if 8.84 x 10^21 molecules of carbon dioxide are also produced

A: Interpretation -  To determine the volume of ammonia NH3 is formed if 8.84 x 10^21 molecules of…

Q: 5.) What volume of Chlorine gas at a pressure of 1 atm and a temperature of 20 °C is required to…

A:

Q: A 0.3400 g piece of brass is allowed to react with hydrochloric acid at the base of eudiometer. The…

A: When brass is reacted with hydrochloric acid, only zinc reacts with hydrochloric acid.  The reaction…

Q: A mixture of gases at fixed volume and temperature contains 2 moles of He and 2 moles of Xe. Which…

A: answer- answer is option no. 4) if one mole off Ar gas is added the partial pressure of both He and…

Q: The total pressure of the system is 12.6 atm. What is the partial pressure of the nitrogen in the…

A:

Q: Five grams of ethane are confined in a bulb of one liter capacity. The bulb is so weak that it will…

A:

Q: How many liters of HCl gas, measured at 30.0 °C and 745 torr, are required to prepare 1.25 L of a…

A: Molarity (M)= moles of solute (mol)Volume of solution (L)⇒ moles of solute =…

Q: Ozzie wanted to do another experiment with a stronger H2O2 solution to check accuracy of the…

A: Given, For H2O2 solution, Concentration of H2O2 solution = 3.18 M = 3.18 mol/L Volume of H2O2…

Q: Carbon dioxide can be generated by the reaction of hydrochloric acid with calcium carbonate. How…

A: moles of CaCO3 taken = mass / molar mass of CaCO3  = 32.1 / 100 = 0.321 moles of HCl taken =…

Q: The atmosphere contains about 5.2×10^15 t of air. What mass in metric tons of carbon dioxide is in…

A:

Q: What volume of CO2(g) at STP is produced if 1.42 L of 0.0036 M HCl reacts with an excess of CaCO3

A: Given :-  CaCO3(s) + 2HCl(aq) → CaCl2(aq) + CO2(g)  Molarity of HCl solution = 0.0036 mol/L  Volume…

Q: A 10 g piece of pure aluminum is placed in 75 mL of 0.54M HCl at stp. They react as 2Al + 6HCL -->…

A:

Q: A person's daily caloric requirement could be obtained from about 675 g of glucose, C 6 H 12 O 6…

A: C6H12O6 (s) + 6 O2 (g) → 6 CO2 (g) + 6 H2O (l)

Q: A mixture of helium and neon gases at 235 K contains 3 times the number of helium atoms as neon…

A: Answer: Ideal Gas equation: PV=nRTP=nVRT Here: P=pressure of the gasV=volume of the gasn=number of…

Q: Zn reacts with hydrochloric acid to give zinc chloride and hydrogen gas. A sample of 5 g of a Zn…

A: Final answer is in the attachmentExplanation:Step 1:First, we need to find the equation that…

Q: 8. For the reaction 2H₂O(1) + 2e → H₂(g) + 2OH(aq), calculate the volume of "dry" hydrogen gas…

A:

Q: A Haber process reactor contains 25.0% nitrogen and 75.0% hydrogen for the synthesis of ammonia.…

A:

Q: A Haber process reactor contains 25.0% nitrogen and 75.0% hydrogen for the synthesis of ammonia.…

A:

Q: Calculate the Volume of Carbon Dioxide gas that was produced in the reaction of baking soda and…

A:

Q: What volume of O2 (at 273 K, 1.00 atm) forms when 100 g of KClO3 decomposes according to the…

A:

Q: 93.3 mL of dry Gas A, at 21°C and an atmospheric pressure of 0.987 atm, reacted with 18.6 mL of a…

A: The formula used to obtained number of moles: P is the pressure. V is the volume. n is the number…

Q: A mass of 0.650 grams of calcium carbonate is added to 0.01375 mole HCl. If the CO2(g) gas is…

A: Given data is The mass of calcium carbonate reacted=0.650 g  Moles of HCl taken = 0.01375 moles…

Q: Hydrogen was collected over water at 21.4°C on a day when the atmospheric pressure was 741 Torr. the…

A: Given :  Temperature = 21.4 °C = 294.4 K  Atmospheric pressure = 741 Torr  Volume of gas collected =…

Q: A 55.8 g sample of AsF5(g) is introduced into an evacuated 10.5 L container at 105°C. i. What is the…

A:

Q: When solid calcium carbonate is reacted with aqueous hydrochloric acid, the products of the reaction…

A: The reaction is given as, CaCO3 + 2 HCl →CaCl2 + H2O + CO2

Q: The generic reaction occurs in a closed container: 2A(g) +B(g) → 2Ce) A reaction mixture initially…

A:

Q: The estimated average concentration of carbon monoxide in air in the United States in 1991 was…

A: Given: Volume (V) of gas = 1.0 L Pressure (P) of gas = 754 torr                      P = 754 atm/760…

Q: Q7. A gas mixture that has the following composition in percent by volume: 9.2% CO2, 22.0% co, 17.5%…

A: Given that  composition in percent by volume: 9.26 CO2, 22.0% CO , 17.5%H2, 3.3% CH4 and 48.0% N2.

Q: Zn reacts with hydrochloric acid to give zinc chloride and hydrogen gas. A sample of 5 g of a Zn…

A: To solve the given problem, let's break it down into three parts:a) Finding the mass of zinc…

Q: 1. A student following the procedure described in this module collected the following data: mass…

A: According to Q & A guidelines of Bartleby, we are supposed to answer only the first 3 sub-parts…

Q: A 7.00 L tank at 5.02 °C is filled with 2.35 g of carbon monoxide gas and 6.67 g of chlorine…

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.