Question

Determining Molar Mass

Answer 1

The molar mass of the following compounds in two decimal places are as follows:

• NH3: 17.04 g/mol
• Mg(OH)2: 58.33 g/mol
• Fe2O3: 159.70 g/mol

MOLAR MASS:

The molar mass of a compound is the sum of all the atomic masses of the elements that constitutes the compound.

According to this question, three compounds were given as follows: NH3, Mg(OH)2 and Fe2O3.

The atomic mass of the elements in this compounds are as follows:

• N = 14
• H = 1
• Mg = 24
• O = 16
• Fe = 56

1. The molar mass of NH3 = 14 + 3 = 17g/mol
2. The molar mass of Mg(OH)2 = 24 + 32 + 2 = 58g/mol
3. The molar mass of Fe2O3 = 56(2) + 16(3) = 160g/mol

Learn more about molar mass at: brainly.com/question/12127540

Answer 2

Determining Molar Mass

Use the periodic table to calculate the molar mass of each of the following compounds. Each answer must have 2 decimal places.

Answer:

- Ammonia ( NH 3 ): 17.04 g/mol is CORRECT :)

- Magnesium hydroxide (MG(OH)2): 58.33 g/mol is CORRECT :)

- Iron (lll) oxide (Fe2O3): 159.70 g/mol is CORRECT :)

Solution:

Got it right on EDGE. Hope this helps <3