A 1.06 mol sample of hydrogen gas is collected at a pressure of 228 torr and a temperature of 15 °C. The volume of the sample is L.

Q: At a pressure of 1 atm and a temperature of 20oC, dry air has a density of 1.2256 g/L. What is the…

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Q: One molecule of hemoglobin will combine with four molecules of oxygen. If 1.0 g of hemoglobin…

A: The molar mass of a compound is mass of compound which is equal to 1 mole. Stoichiometry is related…

Q: if the density of an ideal gas at STP is found to be 1.96 g/L, what is the molar mass?

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Q: What is the ratio of the rate of effusion of the lightest halogen gas, fluorine, to the lightest…

A: The Molar mass of F2 is 38 g/mol The Molar mass of H2 is 2.016 g/mol

Q: Since helium is lighter than air, it is difficult to measure the mass of a sample, so to find out…

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Q: What pressure in mmHg is equivalent to 1.75 atm?

A: Pressure is the force exerted per unit area. Gas particles exert pressure when they collide with the…

Q: What pressure in mmHg is equivalent to 1.480 atm?

A: For the given pressure, 1.480 atm = _________mmHg we have to find the value of this blank.

Q: Calculate the density of sulfur hexafluoride gas at 428 torr and 31 °C

A: Given: Pressure = 428 torr = 428760atm= 0.563 atm temperature = 31oC + 273 = 304 K formula used : d…

Q: Define the term Standard atmospheric pressure?

A: ANSWERE IS DISCUSSED BELOW :

Q: You have 354 mL of chlorine trifluoride gas at 762 mmHg and 48°C. What is the mass (in g) of the…

A: 1 atm is equal to 760 mmHg

Q: At 120 oC, the volume of a sample of nitrogen is 1.07 L. What will the volume be at 205 oC, assuming…

A: Using Charles law of Gas

Q: Calculate the density of argon gas at 23.0 oC and 784 torr.

A: Given, Temperature of Ar gas = 23.0oC = 296K. Pressure of Ar gas = 784torr.

Q: A sample of hydrogen gas has a volume of 250 mL at a pressure of 101.3 kPa.  If the temperature is…

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Q: A sample of carbon dioxide gas collected at a pressure of 745 mm Hg and a temperature of 277 K has a…

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Q: How many molecules are there in an ideal gas with a volume of 6.28 L at STP?

A: We have the ideal gas equation PV=nRT...................1 We know that, the ideal gas is at STP…

Q: What pressure in atmospheres corresponds to 720.3mm Hg?

A: We have to convert the unit of given pressure (720.3 mmHg) from mmHg to atmosphere.

Q: What is the density in g/L of Ar gas at STP?

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Q: How many moles of gas are present with a volume of 25 L, a pressure of 105 kpa and a temperature of…

A: In this question, we want to determine the value of moles of gas. How we can calculate, you can see…

Q: if 1.75 mol of an ideal gas has a pressure of 2.81 atm and a volume of 50.79 L, what is the…

A: According to ideal gas law, PV = nRT where P = pressure in at = 2.81 atm V = volume in L = 50.79 L n…

Q: A 3.95 g sample of an unknown gas at 69 °C and 1.00 atm is stored in a 1.75 L flask. What is the…

A: The ideal gas equation relates the pressure, volume, temperature, and number of moles of gases of a…

Q: How many grams of solid calcium carbonate must decompose to produce solid calcium oxide and 526.0 mL…

A: The amount of solid calcium carbonate decomposed is to be calculated.

Q: Choose a depiction of a gas sample containing equal molar amounts of argon and xenon as described by…

A: The relation between velocity and the molar mass of a gas is given in equation (1).

Q: A mixture of chromium and zinc weighing 0.363 grams was reacted with excess HCl. After all the metal…

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Q: A sample of chlorine gas is confined in a 9.0 L container at 237 torr and 27°C. How many moles of…

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Q: We find that a mass of 0.896 g of a gaseous compound, containing only nitrogen and oxygen, occupy a…

A: By help of Ideal gas equation, we can calculate the molar mass of given compound , we use Following…

Q: A 144.6 mL sample of O2 gas at 509.6 torr is compressed at constant temperature to 87.5 mL. Predict…

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Q: A 40.0 g gas sample occupies 11.20 L at 1.00 atm and 273.15K. What is the molar mass (in grams/mol)…

A: Given Datas ; m = 40.0 g V = 11.20 L P = 1.0 atm T = 273.15 K  R = 0.0821 L.atm/mol.K M = ?

Q: how many moles of neon occupy a volume of 24.3 L at STP?

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Q: Calculate the density of hydrogen gas (in g/L) at 43.0C and 700.0 torr.

A: Given: Temperature = 43.0 oC = 316 K Pressure = 700 torr = 0.921 atm Molar mass of hydrogen gas (H2)…

Q: A sample of argon gas collected at a pressure of 546mmHg and a temp of 277k has a mass of 37.0…

A: Pressure =546 mmHg=(546/760) atm=0.718atm Temperature =277 K Mass= 37.0 grams Volume=?

Q: What is the mass of hydrogen gas (RMM=2) that occupies volume of 35 L at STP?

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Q: A sample of gas contains 0.1300 mol of H2(g) and 6.500×102 mol of 02(g) and occupies a volume of…

A: Volume of the gas is directly proportional to the number of moles of the gas at constant pressure…

Q: A 2.43 L volume of hydrogen measured at −150. °C is warmed to 100.°C. Calculate the volume (in L) of…

A: Given: Initial Volume V1 = 2.43 L Initial Temperature T1 = -150 oC= 123 K Final Temperature T2 = 100…

Q: What is the density of sulfur dioxide gas at 795 torr and 25 oC?

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Q: Calculate the density of hydrogen gas (in g/L) at 899 mmHg and 42.4 °C. ______ g/L

A: According to ideal gas law PV = nRT Where , P = pressure V = volume n = moles of gas R = gas…

Q: In a mixture of helium and chlorine, occupying a volume of 12.8 L at 605.6 mmHg and 21.6oC, it is…

A: Given information:Volume = 12.8 LPartial pressure of chlorine = 143 mmHgPressure = 605.6…

Q: Oxygen is prepared by the decomposition of potassium chlorate. What volume of oxygen measured at STP…

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Q: At 741 torr and 44 °C, 7.10 g of a gas occupy a volume of 5.40 L. What is the molar mass of the gas?

A: Using the ideal gas equation, given the pressure, temperature, mass and volume of the gas, where R…

Q: Calculate the density of Xenon gas at a pressure of 742 mmHg and a temperature of 450C. The molar…

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Q: If 585 ml of nitrogen gas at 453 mmHg is compressed to 255 ml, what will the new pressure be?

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Q: If 620 g of ZnS is to be reacted, what volume of oxygen (O2) at 0.877 atm and 34.0°C is needed to…

A: Given mass of ZnS = 620g Pressure for O2 = 0.877atm Temperature=34°C = 307K Volume of O2 =?

Q: A 1.37 mol sample of xenon gas is collected at a pressure of 479 mmHg and a temperature of 6.0°C.…

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Q: A 1.20-g sample of an unknown gas is placed in a 275.0 mL flask at 35 0C and 1.00 atm. What is the…

A: Mass of a sample = 1.20 g  Volume = 275.0 ml  ....Or  because 1L = 1000 ml    so,  = 275.0 ml × (1L…

Q: At a pressure of 740 Torr, a sample of gas occupies 5.00 L. Calculate the volume of the sample if…

A: according to  Boyles law:- the volume of a gas at constant temperature varies inversely with the…

Q: How many grams of solid calcium carbonate must decompose to produce solid calcium oxide and 544.0 mL…

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Q: A sample of fluorine gas occupies 815 mL at 750 mmHg and 140 ∘C. What is the mass of the sample?

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Q: A 144.6 mL sample of O2 gas at 509.6 torr is compressed at constant temperature to 87.5 mL. Predict…

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Q: A 200 L sample of argon was collected under a pressure of 1.00 atm. At what pressure would the…

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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.