Molarity = moles of solute/Liters of solution (40 ml = 0.04 Liters)
algebraically manipulated,
Moles of solute = Liters of solution * Molarity
Moles HCl = (0.04 Liters)(0.035 M)
= 0.0014 moles HCl
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The total volume of the solution is 10ml + 40ml = 50ml. The percentage concentration of ethanol in the solution is (10ml / 50ml) * 100% = 20%.
To calculate the pH of the resulting solution when mixing HCl and NaOH, you need to determine the moles of each reactant. Use these values to find the limiting reagent and the excess reagent. Then, calculate the concentration of the excess reagent left in solution. Finally, use the concentrations of the excess reagent and water to determine the pH of the resulting solution.
To calculate the density of the saline solution, you will need to know its mass. If the mass is not provided, you can't determine the density just based on the volume. Density is calculated as mass divided by volume.
The weight of 40ml of oil will vary depending on the type of oil. On average, 40ml of oil weighs about 36 grams.
To make a 2% solution from a 25% solution, you need to dilute it. Let x ml be the amount of water needed. Using the equation for mass balance: 0.25(40) = 0.02(40 + x), solve for x to find that x = 875 ml of water needs to be added.
The total volume of the solution is 10ml + 40ml = 50ml. The percentage concentration of ethanol in the solution is (10ml / 50ml) * 100% = 20%.
A 30ml solution with a mass of 45g has a density of 45/30 or 1.5 g/ml, while a 40ml solution with a mass of 50g has a density of 50/40, or 1.25 g/ml. The 30ml solution with a mass of 45g has a higher density.
200ml of solution x 20% of alcohol = 40ml of alcohol..
To calculate the pH of the resulting solution when mixing HCl and NaOH, you need to determine the moles of each reactant. Use these values to find the limiting reagent and the excess reagent. Then, calculate the concentration of the excess reagent left in solution. Finally, use the concentrations of the excess reagent and water to determine the pH of the resulting solution.
To calculate the density of the saline solution, you will need to know its mass. If the mass is not provided, you can't determine the density just based on the volume. Density is calculated as mass divided by volume.
The weight of 40ml of oil will vary depending on the type of oil. On average, 40ml of oil weighs about 36 grams.
To make a 2% solution from a 25% solution, you need to dilute it. Let x ml be the amount of water needed. Using the equation for mass balance: 0.25(40) = 0.02(40 + x), solve for x to find that x = 875 ml of water needs to be added.
1.3 oz. or 8 teaspoons
About 80ml of water must be added to 40ml of a 25 percent by weight solution to make a 2 percent by weight solution.
40ml = 0.07 of a pint
0.4
To find the dissolving rate, you divide the time by the mass. --> 200s/5grams=40mL/s