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Dec 09, 2014 · Now that we know the molar mass of NaCl, we can find how many grams are in 2.5 moles of NaCl. A formula for moles → grams is as follows: # of moles * molar mass/1 mole = # of grams . We know the number of moles (2.5) and now we have figured out the molar mass (58.44 g/mol). At this point, it is a matter of plugging it in.

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P , that is produced? Data Treatment 1. Determine: a. moles of oxygen that were produced. b. moles KClO3 that were reacted. c. ratio of the number of moles of oxygen to the number of moles of KClO3. Write the chemical equation for the reaction that the data suggest occurred. 2.

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For oxygen, however, determine the total number of moles of atoms in the formula and multiply that number by 16g to get the total mass of oxygen in the compound. The equations are: Cu: 64g x 1 = 64 S: 32g x 1 = 32 O: 16g x 4 = 64 H: 1g x 10 = 10 ("5 H2O" means 10 H and 5 O are involved.) O: 16g x 5 = 80
CH4 and O2 react to form CO2 and H2O. Determine the amount of O2 needed to react with 9.25 g of CH4 to produce 25.44 g of CO2 and 20.83 g of H2O. A: 37.02g H2 and O2 react to produce H2O. What is the mass of H2O produced when 0.41 g of H2 completely reacts with 3.28 g of O2?
Feb 21, 2011 · divide the balanced equation by 3. so we get that 1 mole of N2H4 (left) gives (4/3) moles of NH3 on complete reaction.. so 2.5 mole gives 2.5 x (4/3) moles NH3
Molar mass is the number of grams in one mole (6.02 x 1023 molecules). Ex. H 2 O Average atomic mass of H: 1.01 g/mol Average atomic mass of O: 16.00 g/mol The number of atoms is an exact number, the number of mole is an exact number; they do not affect the number of significant figures. The average mass of one mole of H 2 O is 18.02 grams. This is
What is the theoretical yield of water, in moles, when 40.0 g NH3 and 50.0 g O2 are mixed and allowed to react? A) 1.30 mol B) 1.57 mol C) 1.87 mol D) 3.53 mol E) None of these. Ans: C Category: Medium Section: 3.9
Chemistry, 21.12.2020 17:10, jjxt126 What is the total number of liters of NH3 formed when 20 liters of N2 reacts completely
Mar 01, 2020 · Use the number of moles calculated in Step 2 and the molar mass of sucrose from Step 3 to solve for grams: 0.02 mol of C 12 H 22 O 11 × 342.34 g C 12 H 22 O 11 / 1 mol C 12 H 22 O 11 = 6.85 g C 12 H 22 O 11
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 ...
Select the correct answer below: O 2.0 moles O 1.3 moles O 0.56 moles O 0.25 moles 10. Given 6.0 g of carbon, how many moles of O atoms are needed to completely... 10. Given 6.0 g of carbon, how many moles of O atoms are needed to completely react to form CO,? a) 0.25 mol b) 0.50 mol c) 1.0 mold) 1.5 mole) 2.0 mol How many atoms are in 117 g of ...
  • How many moles of CH4 can be obtained by reacting 2.0 mol of H2 with 2.0 mol CO according to this equation? (A) 0.33 mol (B) 0.67 mol (C) 2.0 mol (D) 3.0 mol 13. What is the molarity of the chloride ion in 250 mL of a solution containing 1.90 g of MgCl2? (The molar mass of MgCl2 is 95.2 g mol¯1 (A) 0.020 M (B) 0.040 M (C) 0.080 M (D) 0.16 M 14.
  • (iii) How many moles of Fe(s) are formed in the reaction? nFe = 0.0964 mol Fe2O3 2 mol Fe 1 mol Fe2O3 = 0.193 mol Fe produced If 0.626 mol CO is used as the limiting reactant, then the number of moles of Fe formed is: nFe = 0.626 mol CO 2 mol Fe 3 mol CO = 0.417 mol Fe 1 point for correct number of moles of Fe formed Note: Values
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  • Since we need 3 moles of `O_2` and 4 moles of Fe to get 2 moles of `Fe_2O_3` , the above reaction will not completely takes place in the mixture to form 2 moles of `Fe_2O_3` .
  • Oct 18, 2015 · Calculations involving a limiting reactant Now consider a situation in which 24.0 g of P4 is added to 51.0 g of Cl2, and a chemical reaction occurs. To identify the limiting reactant, you will need to perform two separate calculations: Calculate the number of moles of PCl5 that can be produced from 24.0 g of P4 (and excess Cl2).
  • Feb 21, 2011 · divide the balanced equation by 3. so we get that 1 mole of N2H4 (left) gives (4/3) moles of NH3 on complete reaction.. so 2.5 mole gives 2.5 x (4/3) moles NH3
  • 5 Answers to Using the number of moles of Zn and the mole ratio in the reaction Zn(m) + 2 HCl (aq) --> ZnCl 2(aq) + H2 (g) *determine the numbers of moles of H2 produced. In my results of the reaction I figured the number of moles of Zn was .03285 mol of Zn
  • Nov 08, 2008 · Calculate the number of moles of gas contained in each of the following volumes. The volumes are measured at STP. a) 48dm^3 of oxygen ga, O2. b) 12dm^3 of ammonia gas, NH3. c) 240cm^3 of bromine gas, Br2. d) 96cm^3 of neon gas. Please help thnxs
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