Choose the correct answer   1

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Choose the correct answer

 

1. Calculate the number of moles of barium (B; 69.62 g/mol) in 8.75 g B₂O₃

a. 0.437

b. 0.251

c. 0.173

d. 0.394

 

2. How many grams of KMn0₄ is required to make 5.00 L of 0.0500 M solution?

a. 3.95 g

b. 1.58 g

c. 15.8 g

d. 39.5 g