A chemist wants to make a 40% acid solution. He has 20 mL of a 75% acid solution how many mL of water must be added in order to prepare the desired 40% solution

Q: You need a 60% alcohol solution. On hand, you have a 200 mL of a 55% alcohol mixture. You also have…

A:

Q: You need a 70% alcohol solution. On hand, you have a 195 mL of a 20% alcohol mixture. You also have…

A:

Q: You need a 50% alcohol solution. On hand, you have a 585 mL of a 25% alcohol mixture. You also have…

A: 25 %  alcohol mixture means,  100 ml  of solution contains  25 ml  of alcoholso  585 ml  of solution…

Q: A 100 LB bag of animal feed is 40% oats. How many pounds of oats must be added to this feed to…

A: Given 100 lb animal feed have 40% oats then amount of oats in the animal feed is given by,

Q: In a class experiment, a student needs 5 Liters of 6% solution. He found a 4% and a 10% solution in…

A: Let a=Volume in liters of 4% solutionand b=Volume in liters of 10% solution.Therefore, a+b=5⇒b=5-a

Q: You need a 30% alcohol solution. On hand, you have a 30 mL of a 15% alcohol mixture. You also have…

A: We need a 30% alcohol solution. On the other hand, you have 30 mL of a 15% alcohol mixture. You also…

Q: Sara wants to monitor her daily calcium intake. One day she has 3 cups of milk And 1 cup of cooked…

A: Sara had 3 cups of milk and 1 cup of cooked spinach for a total of 1140 mg of calcium. Next Day she…

Q: You need a 45% alcohol solution. On hand, you have a 495 mL of a 40% alcohol mixture. How much pure…

A: Let's find.

Q: Fifty ounces of pure grapefruit juice are added to 25oz of a fruit punch that is 10% grapefruit…

A: Given, 50 ozof pure grapefruit juice are added to 25 oz of a fruit punch that is 10 % grapefruit…

Q: what amount of a 60% acid solution must be mixed with a 30% solution to produce 300mL of a 50%…

A: Consider x be the amount of 60% solution in ml then (300 – x) ml 30% solution will be used to…

Q: You need a 30% alcohol solution. On hand, you have a 315 mL of a 15% alcohol mixture. You also have…

A: Here we have to take the concentration equation and solved then to get the answer so I'm providing…

Q: You need 760 mL of a 40% alcohol solution. On hand, you have a 95% alcohol mixture. How much of the…

A: Let the amount of 95% alcohol mixture to be added= x ml Let the amount of pure water to be added= y…

Q: You need a 25% alcohol solution. On hand, you have a 300 mL of a 5% alcohol mixture. You also have…

A:

Q: A bottle contains 400 mL of fruit punch with a concentration of 50% pure fruit juice. Jill drinks…

A: A bottle contains 400 mL of fruit punch with a concentration of 50% pure fruit juice. Jill drinks…

Q: You need a 50% alcohol solution. On hand, you have a 390 mL of a 40% alcohol mixture. You also have…

A: Allegations and mixture s

Q: You need a 65% alcohol solution. On hand, you have a 180 mL of a 5% alcohol mixture. You also have…

A:

Q: You need a 45% alcohol solution. On hand, you have a 60 mL of a 40% alcohol mixture. You also have…

A:

Q: You need a 20% alcohol solution. On hand, you have a 140 mL of a 5% alcohol mixture. You also have…

A:

Q: A chemistry teacher needs to mix a 40% salt solution with a 80% salt solution to make 20qt of a 50%…

A: Let the required amount of 40% salt solution be x quarts.

Q: You need a 65% alcohol solution. On hand, you have a 105 mL of a 15% alcohol mixture. You also have…

A: Given: On hand, you have 105mL of 15% alcohol solution, You also have 80% alcohol mixture.

Q: You need a 75% alcohol solution. On hand, you have a 150 mL of a 70% alcohol mixture. You also have…

A: Let x is the amount of the 85% mixture and we have 150 ml of a 70% alcohol mixture So,    85% of x +…

Q: You need 560 mL of a 45% alcohol solution. On hand, you have a 20% alcohol mixture. How much of the…

A: Let m be the amount in mL you need of the 20% mixture. The amount of alcohol in the mixture is…

Q: How many gallons of a 80% antifreeze solution must be mixed with 80 gallons of 20% antifreeze to get…

A: Given: There are two types of solution One contain 80% antifreeze and other contain 20% antifreeze…

Q: You need a 80% alcohol solution. On hand, you have a 75 mL of a 25% alcohol mixture. You also have…

A: Find the quantity

Q: You need a 55% alcohol solution. On hand, you have a 440 mL of a 25% alcohol mixture. You also have…

A: We know that, 25% alcohol mixture means, 100ml of solution contain  25ml of alcohol, so 440 ml of…

Q: | John decided to invest $12,800 in two accounts. He has invested one part in Wells Fargo at a 3.125…

A: Simple interest on a amount is given by  Simple interest =( p×r×t)/100  p = principal r = rate of…

Q: You need a 65% alcohol solution. On hand, you have a 60 mL of a 25% alcohol mixture. You also have…

A:

Q: Pure acid is to be added to a 10​% acid solution to obtain 36L of a 40​% acid solution. What amounts…

A: We need to find the amounts of each acid.

Q: You'need a 55% alcohol solution. On hand, you have a 120 mL of a 50% alcohol mixture. You also have…

A: Needed amount of alcohol solution =55%

Q: How much pure acid should be mixed with 6 gallons of a 50% acid solution in order to get an 80% acid…

A:

Q: You need a 40% alcohol solution. On hand, you have a 275 mL of a 5% alcohol mixture. You also have…

A: Mixture Question

Q: Dorren Schmidt is a chemist. She need to prepare 13 ounces of a 9 percent hydrochloric acid…

A: Given:Here Dorren Schmidt is a chemist and she need to prepare 13 ounces of 9 percent…

Q: You need a 50% alcohol solution. On hand, you have a 420 mL of a 5% alcohol mixture. You also have…

A: Consider,  You will need x mL of the 85% solution. Then, we have to find the value of x.

Q: You need a 65% alcohol solution. On hand, you have a 260 mL of a 55% alcohol mixture. You also have…

A: Lets assume you have x ml of 85% of alcohol

Q: You need a 30% alcohol solution. On hand, you have a 180 ml of a 25% alcohol mixture. You also have…

A: Given:        Let x be the amount of 60% mixture  =60100x…

Q: How many gallons of a 60​% antifreeze solution must be mixed with 60 gallons of 20​% antifreeze to…

A: Let the number of gallons of 60% antifreeze be ‘x’.60 gallons of 20% antifreeze and total volume =…

Q: You need a 50% alcohol solution. On hand, you have a 110 mL of a 10% alcohol mixture. You also have…

A:

Q: A photographer wants to mix 2 liters of a 5% acetic acid solution with a 10% solution to get a 7%…

A: Let x be required amount of 10% solution.

Q: Shenika wants to monitor her daily calcium intake. One day she had 3 cups of milk and 1 cup of…

A: Given Shenika wants to monitor her daily calcium intake. One day she had 3 cups of milk and 1 cup of…

Q: You need a 50% alcohol solution. On hand, you have a 500 mL of a 95% alcohol mixture. How much pure…

A:

Q: A pharmacist wants to mix a 30% saline solution with a 10% saline solution to get 200 mL of a 12%…

A: Let x be the amount of 30% saline solution and y be the amount of 10% saline solution.

Q: Joy is preparing 15 liters of a 25% saline solution. She only has 40% and 10% solution in her lab.…

A: According to the problem, we have

Q: You need 360 mL of a 40% alcohol solution. On hand, you have a 15% alcohol mixture and a 55% alcohol…

A: Given: Two separate solution contains 15% alcohol mixture and 55% alcohol mixture. The objective is…

Q: Armond has two solutions available in the laboratory, one with 5% alcohol and another with 13%…

A: The concentration in percentage can be converted to a decimal value by dividing the percentage by…

Q: Travis needs to create a 15oz bottle of solution that is 17% alcohol for his guests at the martini…

A: Given that Travis has a 15% alcohol solution and a 20% alcohol solution. It is required to find the…

Q: You need a 20% alcohol solution. On hand, you have a 225 mL of a 15% alcohol mixture. You also have…

A: Given data is : 225 ml of 15% alcohol mixture. 45% alcohol mixture Let y ml of 45%  mixture alcohol…

Q: You need a 70% alcohol solution. On hand, you have a 200 mL of a 65% alcohol mixture. You also have…

A:

Q: Joy needs to mix a 10% saline solution with a 40% saline solution to create 200 millileters of a 13%…

A:

Q: Samantha needs to mix a 10 % alcohol solution with a 50 % alcohol solution to create 100 millileters…

A: Given: Samantha needs to mix a 10% alcohol solution with a 50% alcohol solution to create 100…

Q: To make low-fat cottage cheese, milk containing 4% butterfat is mixed with milk containing 1%…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.