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How many moles of H3O must be added to one liter of a solution to adjust the pH from 8.94 to 5.49?
Wiki User
∙ 10y ago
You must add 10-5.49 - 10-8.94 - 10-7 = 3.24*10-6 - 1.15*10-9 -1.00*10-7 = 3.1*10-6 mol/L H3O+
Wiki User
∙ 10y ago
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How many moles of Lithium chloride need to be added to one liter of total solution to make up a 1.25 M solution?
1.25 moles of Lithium Chloride
What is the molarity when water is added to 2 moles of sodium chloride to make 0.5 liter of solution?
Molarity is calculated as moles of solute divided by volume of solution in liters. In this case, you have 2 moles of sodium chloride in a 0.5 liter solution. So the molarity would be 2 moles / 0.5 L = 4 M.
Why do solutions have different molarities?
The molarity of solution is the number of moles of solute per liter of solution. M (molarity ) = n / V = moles of solute / liters of solution = x.xxx M Thus, solutions can have different molarities because they can have different amounts of solute (in moles) per liter of solution.
What is the molarity of a solution is defined as?
The concentration in moles of a substance in the solution
How does would you make 1 liter out of 2 moles?
By using a 2Molar solution.
How many moles of Lithium chloride need to be added to one liter of total solution to make up a 1.25 M solution?
1.25 moles of Lithium Chloride
What is the molarity when water is added to 2 moles of sodium chloride to make 0.5 liter of solution?
Molarity is calculated as moles of solute divided by volume of solution in liters. In this case, you have 2 moles of sodium chloride in a 0.5 liter solution. So the molarity would be 2 moles / 0.5 L = 4 M.
What is the molarity of the resulting solution obtained by mixing 2.5liter of 0.5M urea solution and 500 ml of 2M urea solution?
The 0.5M and 2M refer to moles per liter (of solution). Volume of final solution is 2.5 L + 500 mL = 2.5 L + 0.5 L = 3.0 L. So find out how many moles the final solution has and divide by 3.0L.First solution (0.5 moles/liter)*(2.5 liter) = 1.25 moles2nd solution (2 moles/liter)*(0.5 liter) = 1 moleMolarity: (1.25 mole + 1 mole)/(3.0 liter) = 0.75 moles/liter = 0.75 M
How many moles of 1 liter solution?
Depends on the concentration of the solution and what is in it.
What is the concentration of a solution in terms of solute per liter of solution?
The molarity of a solution is the number of moles of a solute per liter of its solution. The normality of a solution is the number of gram equivalent weight of a solute per liter of its solution. As I said before, and precisely, Molarity is moles of solute per VOLUME of solution!
300.0 Ml of water is added to .40 L of a .400 M Na2CrO4 solution what is the molarity of the resulting solution?
300.0 ml of water is added to .40 L of a .400 M Na2CrO4 solution what is the molarity of the resulting solution? Na2CrO4 = 2 Cr +Cr + 4 O's Molar mass = (2*23 + 52 + (4*16) = 162 A .400 M N Na2CrO4 solution has .400 moles of Na2CrO4 in a liter of water. .400 moles of Na2CrO4 = 0.400 * 162 = 64.8 grams of Na2CrO4 in a liter of water. Since you only have .40 L, you have 64.8 grams/liter * 0.4L = 25.92 grams of Na2CrO4 in 0.4 liter of solution. When you add 300.0 ml of water, you have total of 700 ml of solution. You still have 25.92 grams of Na2CrO4, but now you have 700 ml of solution. Molarity = moles of solute per liter of solution. Moles of solute = grams of solute ÷ Molar mass of solute Moles of solute = 25.92 ÷ 162 = 0.16 moles of Na2CrO4. Molarity = 0.16 moles of Na2CrO4 ÷ 0.700 L of solution. Molarity = 0.23 M
Why do solutions have different molarities?
The molarity of solution is the number of moles of solute per liter of solution. M (molarity ) = n / V = moles of solute / liters of solution = x.xxx M Thus, solutions can have different molarities because they can have different amounts of solute (in moles) per liter of solution.
How much water must be added to one liter of a 5 saline solution to get a 2 saline solution?
If it is 5 molar: 5 moles per liter, then you start with 5 moles of salt. You will always have 5 moles of salt, but it is spread among a bigger volume. So you want it to be 2 moles per liter, so the amount of salt is 2*V, but we know that there are 5 moles, so we have 2*V = 5, and V = 5/2 = 2.5 Liters. Since we started with 1 liter, we must add 1.5 liters.
What is the molarity of a solution is defined as?
The concentration in moles of a substance in the solution
A solution has 0.000001 moles of hydroxide ions per liter - what is the pH of the solution?
pH is 8
When determining the molarity of a solution the answer must be in terms of?
moles per liter.
What ratio does molarity express?
Moles of solute per liter of solution.
