Question

) 20 g of hydrogen is present in 5 litre vessel.
The molar concentration of hydrogen is? ​

Answer 1

Answer: 2

Step-by-step explanation:

No of moles = weight / molar mass

= 20/2 --(molar mass of H2 = 2)

= 10 moles

Therefore,

Molarity = no. of moles/ volume of solution

= 10 / 5

= 2 M

Answer 2

Answer:

2

Step-by-step explanation:

number of moles =wt/molar mass

20/2=10

molarity =no of moles /volume (in liters)

15/5=2