Question

Determine the mass in grams of each element.

Answer 1

1. The mass of 1.33×10²² mole of Sb is 1.62×10²⁴ g

2. The mass of 4.75×10¹⁴ mole of Pt is 9.26×10¹⁶ g

3. The mass of 1.22×10²³ mole of Ag is 1.32×10²⁵ g

4. The mass of 9.85×10²⁴ mole of Cr is 5.12×10²⁶ g

1. Determination of the mass of 1.33×10²² mole of Sb

• Mole of Sb = 1.33×10²² mole

• Molar mass of Sb = 122 g/mol

• Mass of Sb =?

Mass = mole × molar mass

Mass of Sb = 1.33×10²² × 122

Mass of Sb = 1.62×10²⁴ g

2. Determination of the mass of 4.75×10¹⁴ mole of Pt

• Mole of Pt = 4.75×10¹⁴ mole

• Molar mass of Pt = 122 g/mol

• Mass of Pt =?

Mass = mole × molar mass

Mass of Pt = 4.75×10¹⁴ × 195

Mass of Pt = 9.26×10¹⁶ g

3. Determination of the mass of 1.22×10²³ mole of Ag

• Mole of Ag = 1.22×10²³ mole

• Molar mass of Ag = 108 g/mol

• Mass of Ag =?

Mass = mole × molar mass

Mass of Ag = 1.22×10²³ × 108

Mass of Ag = 1.32×10²⁵ g

4. Determination of the mass of 9.85×10²⁴ mole of Cr

• Mole of Cr = 9.85×10²⁴ mole

• Molar mass of Cr = 52 g/mol

• Mass of Cr =?

Mass = mole × molar mass

Mass of Cr = 9.85×10²⁴ × 52

Mass of Cr = 5.12×10²⁶ g

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