1.mass of molecule of water is ??

2.total number of protons in 10 grams of calcium ??

3.molarity of a solution made by mixing 50 ml of conc H2SO4(sulphuric acid)(36N) with 50ml of water is

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Dear dr_mkgupta

Thanks for asking us a question in Ask the Expert section of TopperLearning.com.

 

In case of multiple questions within a query, please post each question individually and let us know where you are getting stuck so that we would be able to explain things better.

 

 

However, answer to your first query is:

 

Atomic mass of hydrogen is 1

Atomic mass of oxygen is 16

 

Mass of one molecule of water H₂O = 2 × 1 + 16 

                                                         = 18 u

 

Regards

Topperlearning Team.