ne molecular weight of a gas is Da, 45 g/mol if 6.7 g of the gas occupies 6.3 L at 1 atm and 0°C. D6.38 Dc 61 Od. 24 D e. 16

Q: 2.40 st STARTING AMOUNT 2.40 g C x 1 mol CO 12.01 g C X X 22.4 L CO 0.001 mol CO 1 12.01 X What…

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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…

Q: What volume (L) of H2 is formed(at 841 mm Hg and 105°C) when 8.4 g of Al is treated with excess…

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Q: C3H8 (g) + 5O2 (g) → 3CO2 (g) + 4H2O (g) If 2025 g of C3H8 are burned with excess oxygen, how many…

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Q: A gas occupies 100.0 mL at a pressure of 780 mm Hg. What is the volume of the gas when its pressure…

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Q: 0.063g 1. Mass of Mg consumed, g 2. Moles of Mg consumed, n Oml 3. Initial eudiometer volume, mL 4.…

A: Mass of Mg consumed = 0.063 g

Q: Zn(s) + 2HCl(aq) → H2(g) + ZnCl2(aq) When 25.0 g of Zn reacts, how many L of H2 gas are formed at…

A: STP represents the Standard Temperature Pressure conditions. Given: The reaction is as follows,…

Q: Avogadro's Law explores the relationship between volume and number of moles of an ideal gas.…

A: Avogadro's Law :-  It states that, equal volumes of two gases under the same conditions of…

Q: how many liters of hydrogen gas form at 25.0℃ and 1.00 atm?

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: When 1.836 L of 6.000 M hydrochloric acid react with 25.0 g iron how many liters of hydrogen gas…

A: First, we calculate the limiting reagent with the help of moles and the stoichiometry coefficient.…

Q: Mg (s) + 2 HCI (aq) = MgCl2 (aq) + H2 (g), if 0.48 g Mg is used in the reaction, how many mL of H2…

A: Since moles of Mg = mass / atomic mass = 0.48/24.3 = 0.01975 approx Now from the above balanced…

Q: A 1.50-L sample of a gas at STP has a mass of 4.75 g. What is one possible formula of the gas? a.…

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Q: 2KCIO 3(s) --> 2KCI(s) + 302lg) A 3.00-g sample of KCIO3 is decomposed and the oxygen at 24.0°C and…

A: The given decomposition reaction is as follows --- 2 KClO3 (s)   →   2 KCl (s)  +  3 O2 (g)…

Q: A 12.0 g sample of gas occupies 19.2 L at STP. What is the molecular weight of this gas? Select…

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Q: At 25°C and 1.00 atm pressure, it is found that 2.24 L of gas weighs 3.11 g. Its relative molecular…

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

Q: A sample of a gas is placed in a vessel at 7.0 atm pressure at 30.0 Celsius. Find molar mass if…

A: Given that:                  Pressure of the gas = 7.0 atm          Temperature of the gas = 30℃ =…

Q: 0.673 mol sample of neon gas at a temperature of 7.00 °C is found to occupy a volume of 21.6 liters

A: The pressure of gas sample is 544.6 mm Hg

Q: How many liters of N2 gas at 1.03 atm and 22.36 C are produced by the decomposton of 160.7 g of…

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Q: How many milliliters of 02 are consumed in the complete combustion of a sample of hexane, C6H14, if…

A: The balanced reaction taking place is given as, => Given : Volume of CO2 produced = 743 mL And…

Q: A syringe contains 0.65 moles of He gas that occupy 750.0 mL. What volume (in L) of gas will the…

A: Answer :- (C) 1.2 L  The volume of gas syringe hold when 0.35 mol of Ne is added to 0.65 mol He is…

Q: How many liters of H₂(g) are needed to make 8.00 L NH3(g) according to the reaction below? Both…

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Q: How many grams of nitrogen gas (N2) are in a balloon with a volume of 35.7 L at STP? (1 mole of gas…

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Q: Solve it asap

A: Here 1.75 g of Mg was mixed 125 ml of 0.2 M HCl solution at 25°C and 1.06 atm pressure.We have to…

Q: Calculate the mass of 4.55 L of HCl gas at STP.

A: 1. one mole of any gas at STP occupies 22.4 L is called as Gram molar volume ' standard pressure = 1…

Q: Derive its molecular formula.

A: An ideal gas is that which involves itself in the physical behavior for a particular idealized…

Q: Determine the molar mass of a gas with a density of 1.54 g/L at 30.0oC and 742 mm Hg.

A: Recall ideal gas equation      PV=nRTAs,molesn=mass of gaswMolar mass of gasMSo, PV=wMRT…

Q: How many grams of carbon disulfide (MW = 76.13 g/mol) are needed to react with 5.0 L of O2 (MW =…

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Q: What mass (g) of carbon dioxide is contained in a 2.89 L vessel at 48 °C and 1.44 atm?   12.8…

A: This problem is based on ideal gas law PV = nRT

Q: 2* A 0.580 g sample of hydrocarbon contains 0.480 g of carbon. At STP, 33.6 mL of the gas has a mass…

A: Given, Mass of hydrocarbon = 0.580 g Mass of carbon in hydrocarbon sample = 0.480 g At STP volume of…

Q: The density of a noble gas is 10.31 g/L at 3.0 atm and 25.0 ⁰C . Identify the gas

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Q: Zn (s)  +  2HCl (aq)  →  H2 (g)  +  ZnCl2 (aq) When 15.0 g of Zn reacts, how many L of H2 gas are…

A: Number of moles of Zn can be calculated as follows: No.of moles=massmolar massNo.of moles=15.0g65.38…

Q: STP, three 500-mL flasks are each filled with N2, O2, and He gas. Which is true? a. densities of…

A: Given  Volume of gases at stp = 500 ml

Q: The density of a gas is 3.17 g/L at STP conditions. Calculate its molar mass (in g/mol)? Select one:…

A: For the ideal gas, the temperature pressure and the volume are related by the ideal gas equation.…

Q: empirical and molecular formulas

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Q: When 1.836 L of 6.000 M hydrochloric acid react with 25.0 g iron how many liters of hydrogen gas…

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Q: A gas occupies 0.19 L when the temperature is 20°C and the pressure is 9.97 × 104 Pa. Its mass is…

A: The gas can be identified by measuring the molar mass of gas. The molar mass of the gas is measured…

Q: Which one of the following statements about the following reaction is false? CH4(g) + 2O2(g)…

A: We have given the balance chemical equation                       CH4(g)  +  2O2(g)    →   CO2(g)  +…

Q: When aluminum reacts with concentrated hydrochloric acid, hydrogen gas is produced.…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: if 1.00 mole of a gas occupies 22.4 L what volume would 0.750 moles occupy under the same pressure…

A: Given :  Initial moles = 1.00 mol  Initial volume = 22.4 L  Final moles = 0.750 mol  To be…

Q: The temperature of 30.7 L of NO2 is changed from 210K to 915 K. During this the pressure changes…

A: The question is based on the concept of combined gas law equation. we have been given initial…

Q: A gas occupies 100.0 ml at a pressure of 780 mm Hg. What is the volume of the gas when its pressure…

A: d. 89 ml

Q: termine the number of moles of gas in 45.0 liters of oxyg c) 22.5 moles d) 45.0 moles 1.61 moles…

A: Number of moles of any gas at STP is defined as volume of gas at STP in litres divided by…

Q: please answer the question and show your work 5a. An automobile airbag inflates when sodium azide…

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Q: A 6.00 mL solution of hydrogen peroxide decomposes generating 20.4 mL of oxygen gas at 1.10 atm and…

A: The question deals with the concept of reaction stoichiometry and ideal gas equation. we have been…

Q: how many liters of hydrogen gas form at 25.0℃ and 1.00 atm?

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: What volume of carbon dioxide gas would be produced from the combustion of 880.57 grams of propane…

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Q: Using the equation C12H22O11+12O2-->12CO2+11H2O if 156 L of O2 at STP are consumed how many moles…

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Q: • At STP, how many grams is 50.0 liters of 02? • A 30.6 g sample of gas occupies 22.414 L at STP.…

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Q: Calcium carbonate reacts with dilute hydrochloric acid. The equation for the reaction is shown.…

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Q: A sample of neon gas at 7.0 °C and a volume of 10.0 L is heated to 147 °C. What is the volume of 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.