Final answer:
The molarity of the NH₃ solution, given that it contains 17 g of NH₃ in 0.50 L of solution, is 2.0 M. This corresponds to answer option a) 2.0 M.
Step-by-step explanation:
The student is asking about the molarity of an ammonia solution. To calculate the molarity of the solution, we need to divide the number of moles of NH₃ by the volume of the solution in liters. First, we calculate the number of moles of NH₃ using its molar mass (approximately 17 g/mol). Given the mass of NH₃ is 17 g, this is equal to 1 mole. Then, since the volume of the solution is 0.50 L, the molarity (M) is calculated as follows:
Molarity = moles of solute / liters of solution
Molarity = 1 mol NH₃ / 0.50 L
Molarity = 2.0 M
Therefore, the correct option is a) 2.0 M as this is the molarity of the NH₃ in the solution.
Your question is incomplete, but most probably your full question was
What is the molarity of a solution that contains 17 g of NH₃ in 0.50 l of solution?
a) 2.0 M
b) 3.0 M
c) 4.0 M
d) 5.0 M