Question

What is the no of moles in 90ml of water?answer?

Answer 1

Answer:

0.04

Explanation:

no of mole=90/2240

Answer 2

Answer:

Volume of water = 90 ml

Density of water = 0.9982 g/ml

Molar mass of water = 18 g/mole

First we have to calculate the mass of water.

Now we have to calculate the moles of water.

Now we have to calculate the molecules of water.

1 mole of water has molecule of water

4.991 moles of water has molecule of water

Now we have to calculate the number of protons in water.

The number of protons present in 1 molecule of water is,

= 2(1) + 8 = 10 protons

Number of protons present in 1 molecule of water= 10 protons

Number of protons present in  molecule of phosphorous = protons

Therefore, the number of protons present in 90 ml of water is protons.