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A lab requires 20.5g of KNO₃. How many moles of KNO₃ are being used in the lab. Your answer should include a correct numerical set up. What is the approximate percent by mass of the water in the hydrated salt? [Show all work.] *

A Lab Requires 205g Of KNO How Many Moles Of KNO Are Being Used In The Lab Your Answer Should Include A Correct Numerical Set Up What Is The Approximate Percent class=

Sagot :

Answer:

the answer is 0.2

Explanation:

we have a formula that mole= reacting mass/ molar Mass and the molar Mass of KNO3 is 101 so since mole is reacting mass/ molar Mass and our reacting mass is 20.5 then divided it by 101 it is equal to 0.2