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What is the molarity of a solution that contains 17g of NH3 in 0.50l of solution?
Wiki User
∙ 14y ago
Molarity = moles of solute/Liters of solution
need to find moles NH3
16.7 grams NH3 (1 mole NH3/17.034 grams)
= 0.9804 moles NH3
--------------------------------now
Molarity = 0.9804 moles NH3/1.50 Liters
= 0.654 M
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Wiki User
∙ 12y ago
To find the molarity, first calculate the number of moles of NH3 in 17g using its molar mass. Molar mass of NH3 = 17.031 g/mol. Therefore, moles of NH3 = 17g / 17.031 g/mol = 0.997 moles. Then, divide the moles of NH3 by the volume of the solution in liters to get the molarity: Molarity = 0.997 moles / 0.50 L = 1.99 M.
Wiki User
∙ 12y agoFirst convert the grams to moles. Find the atomic weight of the molecule NH3
N=14
H=1 x3=3
NH3 = 17 g/mol
17g x 1mol/17g = 1 mol
molarity, M, is mol/L. M=mol/L
1 mol/1.20L = .83M NH3
Wiki User
∙ 14y agoMolarity (M) = mol of solute / L of soln
mol of NH3 = 17 g x (1 mol/ molar mass of NH3)
then plug that answer into the equation above and find M
Wiki User
∙ 12y ago34.0
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