Exactly 250cm³ of a gas at STP weighs 0.291g. The composition of the gas is as follows: C,92.24%, H,7.76%. Derive it's molecular formula.

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Q: Exactly 250 cm3 of a gas at STP weighs 0.291 g. The composition of the gas is as follows: C, 92.24…

A: The molar volume of gas at STP condition is 22400 cm3. Given information says that 250cm3 of given…

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Q: An anesthetic gas contains 64.81% carbon, 13.60% hydrogen, and 21.59% oxygen, by mass. If 2.00 L of…

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Q: Derive its molecular formula.

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Q: a flask contains 1.00 L of a pure gas at 0.850 atm and 20.0°C. mass of the gas= 1.13 What is the…

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Q: A 1.95 g sample of an unknown gas at 61 ∘C and 1.00 atm is stored in a 1.45 L flask. What is the…

A: Given information:Mass of sample = 1.95 gTemperature = 61 °CPressure of gas = 1.00 atmVolume of…

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Q: A 5.25g sample of gas occupies a volume of 1L and exerts a pressure of 1.074atm at -4 degree…

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Q: At 1.01 atm and 5.66 ∘C a 2.51 g sample of gas occupies a volume of 2430 mL. Calculate the molar…

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Q: A 0.338-g sample of gas occupies 125 mL at 60. cm of Hg and 25°C. What is the molar mass of the gas?

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Q: A 2.05 g sample of an unknown gas at 59 ∘C and 1.10 atm is stored in a 2.85 L flask. What is the…

A: Given,Mass of the sample = 2.05 gVolume is 2.85 LTemperature = 273.15 K + 59 = 33.152 KPressure =…

Q: SA Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at…

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A: Given, Temperature = 0°C =273.15 KVolume = 426 mL = 0.426 LPressure = 1 atm Gas Law: PV = nRTP = mM…

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Q: A sample of gas with a mass of 1.020 g occupies a volume of 762 mL at 0 °C and 1.00 atm (STP). What…

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Q: A 3.65 g sample of an unknown gas at 61 ∘C and 1.00 atm is stored in a 2.05 L flask. What is the…

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Q: Exactly 250cm³ of a gas at STP weighs 0.291 g. The composition of the gas is as follows: C, 92.24%…

A: At STP, 22400 cm3 is the molar volume of a gas. it is given that  250 cm3 of gas weighs = 0.291 g…

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.