The partial pressure of CH 4 (g) is 0.175 atm and that of O 2 (g) is 0.250 atm in a mixture of the two gases.. a. What is the mole fraction of each gas in the mixture? b. If the mixture occupies a volume of 10.5 L at 65°C, calculate the total number of moles of gas in the mixture.
A. Calculate the number of moles of HCl. (18.23 g HCl) (1 mol HCl/36.46 g HCl) = 0.5000 mol HCl. B. Divide the number of moles of HCl by the total volume in liters. 0.5000 mol HCl/0.3550 L solution = 1.408 M HCl. Example How many moles of NaCl are contained in a 27.49 mL sample of a 0.350 M solution of NaCl?
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At constant temperature and volume, the total pressure of a gas sample is determined by the total number of moles of gas present, whether this represents a single substance, or a mixture. Example. A gaseous mixture made from 10 g of oxygen and 5 g of methane is placed in a 10 L vessel at 25°C.
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Moles of HCl required to react with Na2CO3 = 2* 0.00526 = 0.01052 And moles of HCl required for NaHCO3 will also 0.00526 Total number of HCl moles required = 0.01052 + 0.00525 = 0.01578 moles
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Water (H2 O) is a polar inorganic compound that is at room temperature a tasteless and odorless liquid, nearly colorless with a hint of blue.This simplest hydrogen chalcogenide is by far the most studied chemical compound and is described as the "universal solvent" for its ability to dissolve many substances.
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Oct 26, 2020 · Calculate how many moles of NO2 form when each quantity of reactant completely reacts. 2 N2O5(g)-4 NO2(g) + O2(g) a. 2.5 mol N2O5 b. 6.8 mol N2O5 c. 15.2 g N2O… 🎁 Give the gift of Numerade. Pay for 5 months, gift an ENTIRE YEAR to someone special! 🎁 Send Gift Now
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86) Small samples of oxygen gas needed in the laboratory can be generated by any number of simple chemical reactions, such as 2 KClO3 (s) → 2 KCl (s) + 3 O2 (g) What mass of oxygen (in grams) is produced when 122.6 g of KClO3 (formula mass = 122.6 amu) takes part in this reaction?
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Example 9. For the balanced chemical equation. 2 C 4 H 10 (g) + 13 O 2 → 8 CO 2 (g) + 10 H 2 O(ℓ). if 154 mol of O 2 are reacted, how many moles of CO 2 are produced?. Solution. We are relating an amount of oxygen to an amount of carbon dioxide, so we need the equivalence between these two substances.
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3) Calculate the number of moles of silver bromide produced from 212 g of magnesium bromide. 212 g MgBr2 1 mol MgBr2 2 mol AgBr = 2.30 mol AgBr 184.11 g MgBr2 1 mol MgBr2 Consider the following balanced equation to answer 4 - 5. MnO2(s) + 4 HCl(aq) MnCl2 + 2 H2O(l) + Cl2(g) 4) Calculate the mass of MnO2 required to completely react with 2.5 ...
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Aug 18, 2010 · NO, we have only 2.88 moles Li. So Li is the limiting reactant and will be used up first. The amount of Li (2.88 moles) will determine how much product (Li2O) we can make. The balanced equation tells us that 4 moles of Li produce 2 moles of Li2O. 2.88 moles Li x (2 moles Li2O / 4 moles Li) x (29.9 g Li / 1 mole Li2O) = 43.1 g Li2O produced. How ...
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If 100. g of N2 is reacted with excess H2, what number of moles of NH3 will be formed? 7.14 mol Methane, CH4, the major component of natural gas, burns in air to form CO2 and H2O.
Calculate the number of moles contained in each of the following samples: a. 2.01 g of silver b. 5.23 kg of sulfur dioxide c. 12.7 mg of iron (II) sulfate 4. Calculate the mass in grams of each of the following samples: a. 0.0219 mol of hydrogen gas b. 4.01 mol of potassium hydroxide 2 c. 7.21 x 10-3 mol of carbon dioxide 5.
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Answer (1 of 1): One ion is produced by the dissolution of each molecule of KCl, and two ions are produced from each molecule of CaCl2. The total number of moles of dissolved Cl- ions is0.134 + 2(0.221) = .134 + .442 = .576The solution contains 0.576 mol of Cl- ions.