Question

The number of moles in 29.25 g of NaCl is equilent to?
(a) 0.25 (b) 0.21 (c) 0.50 (d) 0.75

Answer 1

Answer:

number of moles of NaCl= .5 mol

Explanation:

concept- number of moles = weight of substance / molar mass of substance

given- weight of NaCl= 29.25 g

molar mass- 23+ 35.5= 58.5g

find- no. of mole of NaCl

explanation

number of moles = weight of NaCl/ molar mass of NaCl

number of moles of NaCl = 29.25/58.5

number of moles of NaCl= .5 mol

final answer- 0.5 mol

#SPJ2

Answer 2

Answer:

The correct answer to this question is the number of moles of NaCl is 0.50

Explanation:

Given - The number of moles in 29.25 g of NaCl is equivalent.

To Find - Choose the correct option.

A mole is defined as 6.02214076 × 1023 atoms, molecules, ions, or other chemical units. Because of the large number of atoms, molecules, and other particles in any substance, the mole is a convenient quantity to employ.

According to the question,

Number of moles = weight of substance/molar mass of a substance

Weight of NaCl is  = 29.25 g

Molar mass is - 23 + 35.5 = 58.5g

Use the ,

Number of moles = weight of substance/molar mass of a substance

number of moles of NaCl is = 29.25 / 58.5

So, the number of moles of NaCl is = 0.50 mol

#SPJ2