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How much water must be added to 40ml of a 25 percent by weight solution to make a 2 percent by weight solution?
Shereenlindsay7743
About 80ml of water must be added to 40ml of a 25 percent by weight solution to make a 2 percent by weight solution.
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What is the molality of 7.80 percent by weight glucose solution?
Assuming that is is a solution of glucose in water, the answer is 93%.
If you have a 300ml of a 15 percent hydrochloric acid solution in dilute the solution to 1000ml with sterile water what percent should appear on the label?
The concentration of the diluted solution will be 15(300/1000) = 4.5 %, if the percent is expressed on a weight/volume basis.
How much grams of ferric chloride to be added in 100ml of water to get 2 percent solution?
Very simply 2g of ferric chloride and 100g (100ml) of water!
What weight of glucose is required to prepare 2 L of a 5 percent weight to volume solution?
400 mls would require 40g of glucose for a 10% solution and thus 20g for a 5% solution.
If a water solution has some solids which are not dissolved what simple experiment would you conduct to tell in the percent of solids in the water by weight?
Simplest experiment is to take this water solution having undissolved solids in a hundred ml graduated cylinder upto its mark(100ml). Allow to stand for about half an hour, then note the level of undissolved solids at the bottom of the cylinder. Read that level as percent of solids in the water by weight. To determine percentage of solids by weight: Find the weight of water+undissolved solids Filter water solution through a filter paper. Find the weight of filtered water. Find the weight of dried solids. Percentage of undissolved solids = wt of undissolved solids divided by total weight of water and solids multiplied by 100
How much water must be added to 40 ml of a 25 percent by weight solution to make a 2 percent by weight solution?
About 80ml of water must be added to 40ml of a 25 percent by weight solution to make a 2 percent by weight solution.
How much water added to convert a 10 percent solution to 02 percent solution?
add 4 parts water per part solution
What is the final percent concentration of the solution when 600 ml of 100 percent methanol added to 4400 ml of water?
13.6% methanol solution.
How much water must be added to 12 L of a 40 percent solution of alcohol to obtain a 30 percent solution?
4 litres
A 280 mL solution is 20 percent salt How much water should be added to make the solution 14 percent salt?
98 mL
What is the molality of 7.80 percent by weight glucose solution?
Assuming that is is a solution of glucose in water, the answer is 93%.
How much water must be added to 300 liters of a solution so that its concentration change from 25 percent to 20 percent?
75 litres
If you have a 300ml of a 15 percent hydrochloric acid solution in dilute the solution to 1000ml with sterile water what percent should appear on the label?
The concentration of the diluted solution will be 15(300/1000) = 4.5 %, if the percent is expressed on a weight/volume basis.
How much of a 50 percent solution should be added to 1 liter to make a 25 percent solution?
Mix this 50% solution in equal quantities with water(?) to halve it's strength. So use 1 litre of the 50% solution and 1 litre of water of that's what you are diluting it with.
How much water should be added to 15 g of salt solution to obtain 15 percent salt solution?
Dissolve 15 g salt in 100 mL water.
How much water must be added to 12 grams of a 90 percent iodine solution to produce a 25 percent iodine solution?
12*(90%)=10.8=X*.25 10.8/.25=X=43.2 43.2-12=31.2 31.2 grams of water must be added
What mass of water must be added to 255.0g NaCl to make a 15.00 percent by mass aqueous solution?
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