Question

How many moles of NaOH are in a 75.89g sample? (mass= 40.01 g) (Show your work)

Answer 1

1.896 moles of NaOH-----> 1.90 moles

Step-by-step explanation:

• Written- out Method:

75.89 g of NaOH | 1 mole of NaOH

| 40.01 g NaOH = 1.896 -----> 1.90 moles of NaOH

• Plug into calculator method:

(75.89 g NaOH/ 40.01 g NaOH = 1.896 -----> 1.90 moles of NaOH