What volume of solution do you have if you know you dissolved 0.0500g nitric acid to make solution that was determined to be 0.0793M (molarity).
My teacher gave 10.0 mL as the answer, but I got .0098. Not quite sure where I went wrong.
0.0500 g. I don't know what molar mass your teacher used but let's try 63 since that's a nice round number.
0.0500g/63 = 0.000794 mols.
mols/L =M
0.000794/L = 0.0793
L = 0.000794/0.0793 = 0.01 L = 10.0 mL
Your teacher's answer looks cool to me.
To find the volume of the solution, you can use the formula for molarity:
Molarity (M) = moles of solute / volume of solution in liters
First, calculate the moles of nitric acid using its mass and molar mass.
Molar mass of nitric acid (HNO3) = 1(1.00794) + 1(14.0067) + 3(15.9994) = 63.0128 g/mol
moles = mass / molar mass = 0.0500 g / 63.0128 g/mol = 0.0007936 mol
Now, substitute the values into the molarity formula to find the volume of the solution:
0.0793 M = 0.0007936 mol / volume in liters
Rearranging the equation, we get:
volume in liters = 0.0007936 mol / 0.0793 M = 0.01 L = 10.0 mL
So, the volume of the solution is indeed 10.0 mL, which is the correct answer.
It seems that you made a mistake in your calculation. Please double-check your work and ensure you are using the correct values and units throughout the calculation.