8-10. Mass fraction and mole fraction are defined as the mass or mole of the interested substance divided by the total moles or mass.NaClO3 is given for the calculation.

n8. What is the mass fraction of Na?

Explore topic-wise MCQs in Chemical Process Calculation.

This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Process Calculation knowledge and support exam preparation. Choose a topic below to get started.

1.	8-10. Mass fraction and mole fraction are defined as the mass or mole of the interested substance divided by the total moles or mass. NaClO3 is given for the calculation.
A.	n8. What is the mass fraction of Na?
B.	0.216
C.	0.418
D.	0.625
E.	0.856
Answer» B. 0.216

Discussion

2.	What is the molarity of a solution made by diluting 500 mL of a 2.50 M solution to a final volume of 800 mL?
A.	0.5265 M
B.	1.5625 M
C.	2.5689 M
D.	3.4586 M
Answer» C. 2.5689 M

Discussion

Explore topic-wise MCQs in Chemical Process Calculation.

8-10. Mass fraction and mole fraction are defined as the mass or mole of the interested substance divided by the total moles or mass.NaClO3 is given for the calculation.

What is the molarity of a solution made by diluting 500 mL of a 2.50 M solution to a final volume of 800 mL?

8-10. Mass fraction and mole fraction are defined as the mass or mole of the interested substance divided by the total moles or mass.
NaClO3 is given for the calculation.