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How do you find the concentration of 3.50g of potassium chromate in 100 ml water?
Wiki User
∙ 13y ago
K2CrO4
Molarity (concentration) = moles of solute/Liters of solution (100 ml = 0.100 Liters )
Find moles K2CrO4 first.
3.50 grams = (1 mole K2CrO4/194.2 grams)
= 0.01802 moles K2CrO4
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Molarity = 0.01802 moles K2CrO4/0.100 Liters
= 0.180 M K2CrO4
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Wiki User
∙ 13y ago
To find the concentration of potassium chromate in 100 ml of water, you need to calculate the molarity. First, determine the molar mass of potassium chromate (K2CrO4). Next, calculate the number of moles of K2CrO4 in 3.50g using its molar mass. Finally, divide the moles of K2CrO4 by the volume in liters (0.1 L) to find the molarity.
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