How many moles of KBr are there in 35.8ml of a 0.172M solution?
To find the number of moles of KBr in a solution, we can use the equation:
moles = concentration (M) × volume (L)
Given:
Concentration (M) = 0.172 M
Volume (ml) = 35.8 ml
First, convert the volume from milliliters to liters:
35.8 ml ÷ 1000 ml/L = 0.0358 L
Next, we can use the equation to calculate the number of moles:
moles = 0.172 M × 0.0358 L
Multiplying the concentration by the volume gives us:
moles = 0.0061376 mol
Therefore, there are approximately 0.0061376 moles of KBr in 35.8 ml of a 0.172M solution.