What is the mass, in grams, of each of the following? Part A 2.0×10 3 mol Sb Exp

Question

What is the mass, in grams, of each of the following?

Part A

2.0×103 mol Sb

Express your answer using two significant figures.

nothing

SubmitRequest Answer

Part B

3.58×102 mol Ba

Express your answer using three significant figures.

nothing

SubmitRequest Answer

Part C

44.1 mol Xe

Express your answer using three significant figures.

nothing

SubmitRequest Answer

Part D

1.2 mol W

Express your answer using two significant figures.

nothing

SubmitRequest Answer

What is the mass, in grams, of each of the following?

Part A

2.0×103 mol Sb

Express your answer using two significant figures.

m =

nothing

  g  

SubmitRequest Answer

Part B

3.58×102 mol Ba

Express your answer using three significant figures.

m =

nothing

  g  

SubmitRequest Answer

Part C

44.1 mol Xe

Express your answer using three significant figures.

m =

nothing

  g  

SubmitRequest Answer

Part D

1.2 mol W

Express your answer using two significant figures.

m =

nothing

  g  

SubmitRequest Answer

Explanation / Answer

A)

Molar mass of Sb = 121.8 g/mol

use:

mass of Sb,

m = number of mol * molar mass

= 2*10^-3 mol * 1.218*10^2 g/mol

= 0.2436 g

Answer: 0.24 g

B)

Molar mass of Ba = 137.3 g/mol

use:

mass of Ba,

m = number of mol * molar mass

= 3.58*10^-2 mol * 1.373*10^2 g/mol

= 4.915 g

Answer: 4.92 g

C)

Molar mass of Xe = 131.3 g/mol

use:

mass of Xe,

m = number of mol * molar mass

= 44.1 mol * 1.313*10^2 g/mol

= 5.79*10^3 g

Answer: 5.79*10^3 g

D)

Molar mass of W = 183.8 g/mol

use:

mass of W,

m = number of mol * molar mass

= 1.2 mol * 1.838*10^2 g/mol

= 2.206*10^2 g

Answer: 2.2*10^2 g

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