Question

Calculate the mass, in grams, in $0.150$ mole of each of the following:

a. $Ne$

b.$I_2$

c. $N{a}_{2}O$

d. $Ca{\left(N{O}_3\right)}_2$

e. $C_6{H}_{14}$

Short answer

The mass, in grams, in$0.150$mole of each of the following:

a. localid="1653461051156" $3$g

b. localid="1653461068361" $19.035$g

c.localid="1653461077665" $9.285$g

d.localid="1653461087517" $24.615$g

e.localid="1653461098143" $12.927$g

Step-by-step solution

Part (a) Step 1: Given information

We need to find the mass in grams in $0.150$ moles .

Part (a) Step 2: Explanation

Here one mole is atomic mass of substance expressed in grams .

Number of moles=gram molecular weight/molar mass .

So we are given with the number of moles , we know molar mass of substance.

Therefore mass in grams is $20\frac{g}{\cancel{moles}}\times 0.150\cancel{moles}=3$g

Part (b) Step 1: Given information

We need to find the mass in grams in$0.150$ moles .

Part (b) Step 2: Explanation

Here one mole is atomic mass of substance expressed in grams

Number of moles=gram molecular weight/molar mass .

So we are given with the number of moles , we know molar mass of substance.

Therefore mass in grams is $126.9\frac{g}{\cancel{moles}}\times 0.150\cancel{moles}=19.035$g

Part (c) Step 1: Given information

We need to find the mass in grams in$0.150$ moles .

Part (c) Step 2: Explanation

Here one mole is atomic mass of substance expressed in grams .

So we are given with the number of moles , we know molar mass of substance.

Number of moles=gram molecular weight/molar mass .

Therefore mass in grams is$0.150\cancel{moles}\times 62\frac{g}{\cancel{moles}}=9.285$g

Part (d) Step 1: Given information

We need to find the mass in grams in $0.150$ moles .

Part (d) Step 2: Explanation

Here one mole is atomic mass of substance expressed in grams .

So we are given with the number of moles , we know molar mass of substance.

Number of moles=gram molecular weight/molar mass .

Therefore mass in grams is $0.150\cancel{moles}\times 164.1g/\cancel{mol}=24.615$g

Part (e) Step 1: Given information

We need to find the mass in grams in $0.150$ moles

Part (e) Step 2: Explanation

Here one mole is atomic mass of substance expressed in grams .

So we are given with the number of moles , we know molar mass of substance.

Number of moles=gram molecular weight/molar mass .

Therefore mass in grams is $0.150\cancel{moles}\times 86.18\frac{g}{\cancel{moles}}=12.927$g