How many moles of KNO₃ are present in 45.6 mL of a 3.11 molar solution?

Question

Quizplus · Accepted Answer

We can use the formula:
moles = molarity x volume (in liters)
First, we need to convert the volume from milliliters to liters:
45.6 mL = 0.0456 L
Now we can substitute the values into the formula:
moles = 3.11 mol/L x 0.0456 L
moles = 0.141816 mol
To the correct number of significant figures, the answer is 0.142 mol. Therefore, the best choice is A) 0.142 mol.

How Many Moles of KNO3 Are Present in 45

How Many Moles of KNO₃ Are Present in 45