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hw3 1. in lab you need to measure out 0.46 mol of C7H14O7C7H14O7 for an experiment....

hw3

1. in lab you need to measure out 0.46 mol of C7H14O7C7H14O7 for an experiment. How many grams should you weigh out? Give your answer to 2 decimal spaces.

2.In lab you measure out 44.04 grams of C8H16O8C8H16O8 for an experiment. How many mol is this? Give your answer to 2 decimal spaces.

3.How many molecules are in 0.410 moles of Neon gas?

4.Calculate the mass in grams of 1.40×10241.40×1024 molecules of Sulfur dioxide, SO2.

5.How many Chlorine atoms are in 3.64g of Barium chloride, BaCl2

6.Calculate the number of particles found in 233.99 grams of Al2(CO3)3.

7.A drink recipe calls for 200 grams of sugar, 2 liters of water, and 1 package of flavoring. While gathering the ingredients, the student realizes that there is only 100 grams of sugar available. How can the student sill make the drink so that it has the correct concentration?

They should use L of water and packages of flavoring.

8.

A chemical reaction is shown below. Which equation best describes the stoichiometry of the reaction?

  • AB + C2 →→ AC + B2
  • AB + 2C →→ AC + 2B
  • 2AB + C2 →→ 2AC + B2
  • 10AB + 5C2 →→ 10AC + 5B2
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