How do you calculate the volumes of the acid solutions (1.50M HCl, 1.50M HNO3, and 1.50 M H2SO4?

I don't understand the question. 1.50M HCl = 1.5 moles/L of solution. The volumes are depended upon the reaction and you have given no reaction.

All of those are separate reactions that are being reacted with 50 mL of 1.50 M NH3.

The concept is the same for all.

1. Write and balance the equation.
NH3 + HCl ==> NH4Cl

2. Calculate moles NH3.
moles NH3 = M x L

3. Using the coefficients in the balanced equation, convert moles NH3 to moles of the acid.
0.075 moles NH3 x (1 mole HCl/1 mole NH3) = 0.075 x (1/1) = 0.075 moles HCl

4. Convert moles HCl to volume.
M = moles/L. YOu have moles and M, solve for L.

Same concept for H2SO4 but it is a little different in step 3.
2NH3 + H2SO4 ==> (NH4)2SO4
moles NH3 = M x L = 0.075
moles H2SO4 = 0.075 moles NH3 x (1 mole H2SO4/2 moles NH3) = 0.075 x (1/2) = ??
Then M = moles/L.
The whole point of the problem is to illustrate two points.
a. When the SAME concns and are used, the VOLUME is the same for 1:1 reactions such as HCl and HNO3 but
b. they are not the same, even for the same concn, if the ratio is not 1:1 (as in the H2SO4 part).

To calculate the volumes of acid solutions, you need to know the amount of moles of the respective acids and their corresponding molarities. The formula for calculating volume is:

Volume (in liters) = Moles / Molarity

Let's calculate the volumes for each acid solution you mentioned.

1. For 1.50 M HCl:
First, determine the number of moles of HCl using the formula:
Moles = Molarity * Volume

If you have a specific volume, say in liters, plug it into the formula. However, since you're looking to calculate the volume, you need rearrange the formula to:
Volume = Moles / Molarity

If you have the number of moles and the molarity, simply divide the moles by the molarity to get the volume.

2. For 1.50 M HNO3:
Follow the same steps as for HCl. Calculate the volume using the formula:
Volume = Moles / Molarity

3. For 1.50 M H2SO4:
Again, use the same formula to calculate volume:
Volume = Moles / Molarity

Remember, to calculate the moles of each acid, you'll need additional information such as mass, concentration, or other relevant quantities. Once you have the moles, you can use the formula to find the volume based on the given molarity.