Question

Petunia needs 75.05 grams of potassium hydroxide (KOH) to run a reaction in class. How many moles of potassium hydroxide does she need? Please round your answer to two digits after the decimal point, and remember to include correct, complete units (including substance formula).

*. Please round your answer to two digits after the decimal point, and remember to include correct, complete units (including substance formula). *

Answer 1

Below

Step-by-step explanation:

From periodic table

Mole wt of K = 39.098

H =1.008

O=15.999 total wt per mole KOH = 56.105 gm/mole

75.05 gm / 56.105 gm/mole = 1.34 moles of KOH