Find the moles of 127.5g of NaCl.

n = 2.18 moles

Explanation:

Given that,

Mass = 127.5g

Molar mass of NaCl = 58.44 g/mol

We need to find the number of moles. We know that,

No. of moles = Given mass/molar mass

Put all the values,

Hence, there are 2.18 moles of 127.5g of NaCl.

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current