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Chapter Review Calculations

Posljednje ažuriranje almost 4 years ago

9

6

6

6

6

6

6

6

6

24

Pitanje 1

1.

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

Pitanje 2

2.

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

Pitanje 3

3.

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

Pitanje 4

4.

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

Pitanje 5

5.

In the compound NaC₂H₃O₂, what percent is sodium?

Pitanje 6

6.

In the compound NaC₂H₃O₂, what percent is carbon?

Pitanje 7

7.

In the compound NaC₂H₃O₂, what percent is hydrogen?

Pitanje 8

8.

In the compound NaC₂H₃O₂, what percent is oxygen?

Pitanje 9

9.

Identify the type of representative particle for each substance.

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

atom
molecule
formula unit