What is the experimental molar mass (that is, calculated from the data given and not taken from the periodic table) of magnesium if 0.0211 grams of magnesium generates 21.07 mL of hydrogen at 19.0 °C with a hydrogen partial pressure of 747.5 torr? Note that the partial pressure of water vapor has already been subtracted from the total pressure.

Q: A 2.00-L sample of O2(g) was collected over water at a total pressure of 785 torr and 25°C. When the…

A: Find the solution below

Q: Use Dalton's Law of partial pressure to solve the problems below. Write in a separate sheet of…

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Q: The radius of a xenon atom is 1.3 x 10^-8 cm. A 100-mL flask is filled with Xe at a pressure of 1.0…

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Q: Enter your answer in the provided box. A piece of sodium metal reacts completely with water as…

A: Given reaction is,  2Na(s) + 2H2O(l) --> 2NaOH(aq) + H2(g)  Given data,  Volume of hydrogen gas =…

Q: Mg(s)+2HCl(aq)→MgCl2(aq)+H2(g). If 243 mL of hydrogen gas is collected at 25 Celsius and has a total…

A: Since partial pressure of hydrogen = total pressure - vapour pressure of water = 755 - 23.78 =…

Q: 4.00 L flask contains 1.40 atm argon at 25°C. a) Calculate the moles of argon gas initially present…

A: We will calculate all parts

Q: A sample of argon has a volume of 155 mL at 1.00 atm. What is its volume at 1.50 atm? 118000 mL 51.5…

A: Boyle's law states that at constant temperature, pressure of gas is inversely proportional to volume…

Q: 24. A sample of oxygen that occupies 1.00 x 10° mL at 575 mm Hg is subjected to a pressure of 1.25…

A: The question is given the Boyle's law is applied Boyle's  law statements that volume of a fixed mass…

Q: If 12.0 g of water is converted to steam in a 4.18 L pressure cooker held at a temperature of 112…

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Q: If 52.2 grams of carbonic acid are sealed in a 2.00 L soda bottle at room temperature (298 K) and…

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Q: A gas cylinder contains 1.0 mol of helium at a temperature of 20°C. A second identical cylinder…

A: Average velocity of gas =

Q: If 73.6 grams of carbonic acid are sealed in a 2.00 L soda bottle at room temperature (298.15 K) and…

A: W = 73.6 g T = 298.15 k V = 2 L

Q: 4. A student observed that 0.234 grams of a metal produced 92.2 mL of wet hydrogen gas measured with…

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Q: Hydrogen produced from a hydrolysis reaction was collected over water. The data is compiled in the…

A: Given : total volume of H2 collected = 93.91 mL = 0.09391 L  Barometric pressure = total pressure =…

Q: A chemist vaporized a liquid compound and determined its density. If the density of the vapor at…

A: Given density = d = 1.285 g/L  Pressure = P = 753 mmHg  Temperature = T = 90.0 0C  Gas constant = R…

Q: Hydrogen gas is produced when zinc react with sulfuric acid. The other product formed is zinc…

A: here we are required to find the Mass of zinc needed to produce 159 ml of hydrogen when it react…

Q: Suppose that 78.0 mL of H2 gas is produced at 20.0oC by the reaction of 0.0764 g magnesium and the…

A: Molar volume of gas : volume of one mole of a gas is called molar volume.

Q: Which gas would behave more ideally at the same conditions? why? CO2 N2

A: At high temperature and low pressure, all gases behave ideally.   As the temperature is lowered, the…

Q: A small piece of Zinc reacts with dilute HCl to form H2 which is collected over water at 16°C into a…

A: Given: total pressure of mixture = 752 torr Volume of gas = 1495 mL = 1.495 L…

Q: 5. In the experiment aimed to calculate the molar volume of a gas, a 0.02 mole of [CuCO3.Cu(OH)2]…

A: In the experiment aimed to calculate the molar volume of a gas, a 0.02 mole of [CuCO3.Cu(OH)2]…

Q: A sample of 250.9 mL of wet nitrogen gas was collected over water at a total pressure of 753 torr…

A: As per Raoult’s Law,Total Pressure = Partial vapour pressure of water + Partial vapour pressure of…

Q: Zinc reacts with aqueous sulfuric acid to form hydrogen gas: Zn(s) + H2SO(aq)- ZnSO (aq) + H,(g) In…

A: The balanced reaction taking place is given as, => Zn (s) + H2SO4 (aq) ---------> ZnSO4 (aq) +…

Q: rogen produced from a hydrolysis reaction was collected over water. The data is compiled in the…

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Q: What is the experimental molar mass (that is, calculated from the data given and not taken from the…

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Q: A 0.410 L sample of argon is collected at 45 oC. If the temperature of the sample is increased to 75…

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Q: A sample of zinc metal is allowed to react completely with an excess of hydrochloric acid: Zn(s) + 2…

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Q: Hydrogen gas is collected over water at 23.5 °C and an atmospheric pressure of 765 mmHg. Calculate…

A: Hydrogen gas is collected over water at 23.5 °C and an atmospheric pressure of 765 mm Hg. Calculate…

Q: Suppose there is a gaseous mixture of nitrogen and oxygen. If the total pressure of the mixture is…

A: A numerical problem based on Dalton's law, which is to be accomplished.

Q: Space capsules operate with an oxygen content of about 34%. Assuming a total pressure of 780 mm Hg…

A: Mass percent of oxygen is spaceship = 34% Total pressure inside of a spaceship = 780 mmHg Partial…

Q: : 23. Which gas in the following tubes diffuses at the lowest rate when these tubes are unstopped at…

A: The diffusion rate is the rate at which diffusion of a gas is happening when pressure is removed. To…

Q: Nitrogen gas has many important applications in industry, especially in providing unreactive…

A: First, we will calculate number of moles of N2  produced , then using stoichiometric calculations,…

Q: If 3.85 L of CO was collected over water at 25°C and 689 mmHg, how many grams of HCHO2 were…

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Q: A sample of 4.72 mol of krypton is confined at low pressure in a volume at a temperature of 68 °C.…

A: Number of mol of Krypton (initial) = 4.72 mol Temperature = 680C Root-mean square speed formula is

Q: If 69.6 grams of carbonic acid are sealed in a 2.00 L soda bottle at room temperature (298.15 K) and…

A: Answer :- 13.7 (atm)  The final pressure of Carbon dioxide gas (CO2) = 13.7 atm…

Q: A 0.1586-g sample of aluminum-zinc alloy is placed in the same apparatus that was used last week.…

A: Given:  Volume of H2 is produced = 106.5 ml = 0.1065 L Temperature of the beaker = 21°C = (21+273) =…

Q: A piece of sodium metal reacts completely with water as follows: 2Na(s) + 2H,O(1) → 2N2OH(aq) +…

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Q: Given that P = 1.03 atm R = 0.0821 L.atm/(mol. K) T = 365.62 K V = 0.19 L m = 0.16 g Calculate molar…

A: Given :-  P = 1.03 atm  R = 0.0821L.atm.mol-1.K-1  T = 365.62 K V = 0.19 L m = 0.16 g  To calculate…

Q: Explain Boyle's law and Avogadro's hypothesis

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Q: What is the pressure in atmospheres of the gas remaining in the flask? Ignore the volume of solid…

A: The question is based on the concept of reaction Stoichiometry. We have to determine pressure in the…

Q: Predict the number of molecules for diatomic gas, X, if the volume at STP is 44.80 L. [Molar volume…

A: We have to calculate the number of molecules for gas.

Q: Lead pipes are no longer used because they dissolve in acids leaching lead into the water supply.…

A:

Q: A sample of unknown metal (X) of mass 0.116-g reacts with hydrochloric acid to produce 77.5mL of…

A: Given: mass of metal = 0.116 g Temperature = 20 °C pressure of wet gas = 754 mmHg vapor pressure of…

Q: A sample of unknown metal (X) of mass 0.116-g reacts with hydrochloric acid to produce 77.5mL of…

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Q: 14.Consider the following chemical reaction: Al2(CO3)3 (s) --------> CO2(g) + Al203(s) The carbon…

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Q: A piece of sodium metal reacts completely with water as follows: 2Na(s) + 2H,0(D→ 2NAOH(aq) + H2(g)…

A: Recall the given equation as follows        2Nas + 2H2Ol →2NaOHaq + H2g Again recall the ideal gas…

Q: Three identical flasks contain three different gases at standard temperature and pressure. Flask A…

A: At Standard Temperature and Pressure (STP), 1 mole of any gas will occupy a volume of 22.4 L.

Q: A sample of an ideal gas at 1.00 atm1.00 atm and a volume of 1.72 L1.72 L was placed in a weighted…

A: According to Boyle’s law At constant Temp. P1V1 = P2V2 P1 = 1atm        P2 = 65atm V1 = 1.72 L    V2…

Q: A sample of 299.5 mL of wet nitrogen gas was collected over water at a total pressure of 728 torr…

A: Given: Volume of gas collected = 299.5 mL = 0.2995 L                            (Since 1 L = 1000…

Q: What do you expect to happen to the  volume of a gas it its temperature is doubled while the…

A: Since you have posted a question with multiple subparts, we will solve the first three subparts for…

Q: 0.76 moles of methane gas are trapped in a container at STP conditions. Calculate the volume of the…

A: Volume of gas at STP = Number of moles x 22.41 L

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.