a) What mass of carbon dioxide is present in 1.00 m3 of dry air at a temperature of 17 ∘C and a pressure of 697 torr ? b) Calculate the mass percentage of oxygen in dry air.

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?

A:

Q: A sample of oxygen that occupies 1.00 106 mL at 575 mm Hg is subjected to a pressure of 1.15 atm.…

A:

Q: If 5.00 L of hydrogen gas,measured at a temperature of 20.0°C and a pressure of80.1 kPa, is burned…

A: The mass of oxygen has to be given, Given: P=80.1 kPa V=5.00 L R=8.31447 L kPa K−1mol−1 T=20.0∘C +…

Q: In what volume must 12.5 moles of argon be contained so that at 20.0°C it would exert a pressure of…

A:

Q: What volume (in L) does a 1.34 g  sample of chlorine gas occupy at SATP?

A: Ideal gas equation is equation which obeys gas law under all conditions of temperature and pressure.

Q: 2. At what temperature will 0.84 moles of neon gas occupy 120 cm' at 1 atmosphere?

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Q: What is the mass of chlorine gas present in 17.0 L at a pressure of 98.5 kPa and a temperature of 13…

A:

Q: Calculate the ratio of effusion rates for nitrogen ( N 2 ) and neon (Ne).

A: According to Graham's law of effusion rates of gases, "Rate of effusion of a gas is inversely…

Q: Assuming ideal gas behavior, what is the pressure in atm exerted by 1.57 mol Cl_{2}2​(g) confined to…

A: All matter can be classified as solid, liquid and gases mainly. In these physical states of matter,…

Q: What volume of carbon dioxide gas (in L) at 21*C and 781 mmHg could be absorbed by 327g of lithium…

A: Given data,Temperature=21oC21+273.15=294.15KPressure=781mmHg=781760atm=1.027atmMass of LiOH=327g

Q: A gas mixture composed of helium and argon has a density of 0.670 g/L at a 755 mmHg and 298 K. What…

A: Any unknown variable like volume (V), moles (n), or pressure (P) get evaluated through the…

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: A sample of 1.00 moles of oxygen at 50℃ and 98.6 kPa occupies what volume?

A: According to ideal gas law, PV = nRT where P = pressure in atm = pressure in KPa / 101.325 = 98.6 /…

Q: What is the volume of 0.188 moles of fluorine gas contained at 27.1oC with a pressure of 151.95 kPa?

A: According to ideal gas equation, the pressure, volume, the number of moles and the temperature are…

Q: 1.22 L of oxygen was collected at 24oC and 0.985 atm. The sample was then heated to 54oC and the…

A:

Q: Calculate the pressure exerted by 106.359 grams of chlorine gas, confined to a volume of 510 mL at…

A: The ideal gas equation is  PV = nRT  P = pressure of gas  V = volume  n = moles of gas = mass/molar…

Q: What is the pressure exerted by 2.00 moles of oxygen gas confined to a volume of 500 mL at 20.0°C?

A:

Q: What volume is occupied by 0.640 mol of CO2 at 273.5 K and 701 mmHg ?

A: We have to calculate the volume occupied by gas.

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

A:

Q: What is the pressure, in pascals, exerted by 1263 g CO(g) when confined at -22 ∘C to a cylindrical…

A: The radius of the cylindrical tank is 15 cm or 0.15 m. The volume of the cylindrical tank can be…

Q: If 0.370 L of neon gas is collected over water at a temperature of 60°C and a pressure of 760 torr,…

A: GIVEN: The volume of Neon gas collected over water= 0.370 L Temperature =60°C  Pressure = 760 torr…

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: What is the pressure of 2.01 g of nitrogen gas confined to a volume of 0.205 L at 36 ∘C?

A: Given, Mass of nitrogen = 2.01g Volume = 0.205L Temperature  = 36 degree Celsius.

Q: 2. What is the density of nitrogen gas at 44.8°C and 141 kPa?

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Q: What volume of oxygen at 12.8 atm pressure and 10.8°C is needed to prepare 25 g of Na,CO,?

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Q: If a 4.25 atm gas phase mixture contains 40.0g of neon and 40.0 g of helium at a constant…

A: Given- Total pressure= 4.25 atm  Weight of neon =40.0g Weight of helium =40.00 g

Q: What mass (in g) of oxygen must be added to 9.59 g of neon at 24oC, and in a 96 L contain for a…

A: Given data : Mass of neon = 9.59 g Temperature (T)= 24oC = 297 K Volume (V)= 96 L We have to…

Q: How many grams of carbon disulfide gas will be produced from a volume of 6.9L and a pressure of…

A: We know  the ideal gas equation is PV = nRT where P = pressure, V = volume, R = ideal gas constant,…

Q: What is the molar mass of a gas that has density 1.40 g/L at 760. mmHg and 273K?

A:

Q: How much potassium chlorate is needed to produce 20.0 mLmL  of oxygen gas at 700. mmHgmmHg   and…

A: Mole of the gas is  n = PV/RT

Q: What is the pressure of 1.51 g of nitrogen gas confined to a volume of 0.105 LL at 30 ∘C?

A:

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

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Q: A mixture of oxygen and chlorine gases contains twice as much oxygen (by mass) as chlorine. Ifthe…

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

A:

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: You have 357 mL of chlorine trifluoride gas at 699 mmHg and 45°C. What is the mass (in g) of the…

A: Given  volume = 357 mL = 0.357 L Pressure = 699 mmHg = 0.919 atm  temperature = 45o C = 45 + 273.15…

Q: What is the mass of chlorine gas present in 17.0 L at a pressure of 98.5 kPa and a temperature of…

A: This problem will be solved using ideal gas equation which is given as PV= nRT  Where, P = pressure…

Q: A sample of carbon dioxide occupies a volume of 6.70 litres at 105 kPa pressure. What pressure would…

A:

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: what would the density of nitrogen be if the gas was at 44.7*C and 2.1 atm?

A: The given data is as follows:                 The temperature of the nitrogen gas = 44.7…

Q: What is the volume that 57.0 grams of F, would occupy at 227°C and 1.50 atm?

A: The question deals with the ideal gas law. According to the law, pressure, volume, number of moles…

Q: What must be the new volume of a sample of nitrogen (in L) if 2.89 L at 742 torr and 23.6 °C is…

A: The final volume of the gas can be measured by using the combined gas law. The combined gas law is:…

Q: 3.) How many of aluminum nitrate are found in 5.61 x 1023 molecules of this compound? 4.) What is…

A: Number of mole = number of atom÷6.022×10^23 Mass = mole × molar mass Density of gas = PM/RT

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

A:

Q: Calculate the density (in g/L) of carbon monoxide gas at 21C and 215mmHg.

A: Given information,

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.