How many grams of NaOH will make 1M of its aqueous solution in 1000cm3

The mass of NaOH is 40 g

Explanation:

Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L. The formula used to calculate molarity:

.....(1)

Given values:

Molarity of NaOH = 1 M

Molar mass of NaOH = 40 g/mol

Volume of the solution =            (Conversion factor: )

Putting values in equation 1, we get:

Hence, the mass of NaOH is 40 g

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.