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Chapter Review Calculations

Last updated over 3 years ago

9 questions

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Question 1

1.

Convert 23.917 grams of methane gas to molecules of methane(CH4).

Question 2

2.

Convert 2.229x1024 atoms of lithium to grams of lithium(Li).

Question 3

3.

Convert 4.91 grams of hydrogen peroxide to molecules of hydrogen peroxide(H2O2).

Question 4

4.

Convert 5.41x1024 atoms of nickel to grams of nickel(Ni).

Question 5

5.

In the compound NaC2H3O2, what percent is sodium?

Question 6

6.

In the compound NaC2H3O2, what percent is carbon?

Question 7

7.

In the compound NaC2H3O2, what percent is hydrogen?

Question 8

8.

In the compound NaC2H3O2, what percent is oxygen?

Question 9

9.

Identify the type of representative particle for each substance.

C6H12O6
MgO
FeCl3
NH3
Ne
argon
lithium
Al(NO2)3
water
CH4
NaOH
helium

atom
molecule
formula unit