How many moles of DAP,(NH4)2HPO4 are there in 26.2g of DAP

Moles of  diammonium phosphate = 0.2 mol

Explanation:

Given data:

Mass of diammonium phosphate = 26.2 g

Moles of  diammonium phosphate = ?

Solution:

Formula:

Number of moles = mass/molar mass

Molar mass of  diammonium phosphate is 132.06 g/mol

Number of moles = 26.2 g/ 132.06 g/mol

Number of moles = 0.2 mol

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.