d)A solution made by adding 4.67 grams of potassium hydroxide to enough water to make 5.00 L of final solution.
e)A solution made by adding 50 mL of 6.0 M hydrochloric acid to enough water to produce 2.0 L of final solution.
f)A solution made by adding 30.0 mL of 1.00 M nitric acid to 100 mL of water.Assume additive volumes
I see what looks like choices d, e, f. Where are a, b , c?
Where is the question. What are we supposed to do with d, e, f?
Hi DrBob, it's three separate questions
To find the concentration of the final solutions, we need to calculate the molarity (M) of each solution. Molarity is defined as moles of solute per liter of solution.
For part d:
1. Calculate the moles of potassium hydroxide (KOH) using the given mass and the molar mass of KOH (39.10 g/mol for K and 16.00 g/mol for O + 1.01 g/mol for H).
Moles of KOH = mass of KOH / molar mass of KOH
= 4.67 g / (39.10 g/mol + 16.00 g/mol + 1.01 g/mol)
2. Calculate the molarity of the solution by dividing the moles of KOH by the volume of the final solution.
Molarity = moles of KOH / volume of solution
= moles of KOH / 5.00 L
For part e:
1. Calculate the moles of hydrochloric acid (HCl) using the given volume and the molarity of HCl (6.0 M).
Moles of HCl = molarity x volume(L)
= 6.0 mol/L x 0.050 L (convert 50 mL to 0.050 L)
2. Calculate the molarity of the solution by dividing the moles of HCl by the volume of the final solution.
Molarity = moles of HCl / volume of solution
= moles of HCl / 2.0 L
For part f:
1. Calculate the moles of nitric acid (HNO3) using the given volume and the molarity of HNO3 (1.00 M).
Moles of HNO3 = molarity x volume(L)
= 1.00 mol/L x 0.030 L (convert 30.0 mL to 0.030 L)
2. Calculate the total volume of the final solution by adding the volume of the nitric acid solution and the volume of water.
Total volume = volume of nitric acid solution + volume of water
= 30.0 mL + 100 mL (convert mL to L by dividing by 1000)
3. Calculate the molarity of the solution by dividing the moles of HNO3 by the volume of the final solution.
Molarity = moles of HNO3 / volume of solution
= moles of HNO3 / total volume of solution
By following these steps, you can determine the molarity of each solution.