Question

PHYSICAL CHEMISTRY

Please give step solution ​

Answer 1

Answer:

a) 2 moles, b) 3 moles

Explanation:

Mass of Na = 23 g

Mass of H = 1 g

Mass of O = 16 g.

a)No. of moles =  Given mass/ Molar mass

                          =  46/23

                           = 2 moles

b) No. of moles =  Given mass/ Molar mass

                          =  120/(23+16+1)

                          = 120/40

                          = 12/4

                             = 3 moles  

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