Question

the ratio of number of moles of water to number of moles of NaOH present in 10 percent NaOH solution​

Answer 1

Explanation: NaOH solution is prepared in water.

Molar mass of NaOH=40 g

Mass of NaOH=10 g

Molar mass of water = 18 g

Given mass of water = 90 g

Number of moles of NaOH=  

40

10

​

=0.25 moles

Number of moles of H  

2

​

O=  

18

90

​

=5 moles

Mole fraction of NaOH=  

0.25+5

0.25

​

=0.047