You need a 45% alcohol solution. On hand, you have a 495 mL of a 40% alcohol mixture. How much pure alcohol will you need to add to obtain the desired solution? You will need  mL of pure alcohol to obtain  mL of the desired 45% 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 10% alcohol solution. On the other hand, you have a 495mL of a 5% alcohol mixture. You…

A: Solution

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 concentrated solution contains 10% salt. How many liters of this solution does Mary need to add to…

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Q: You need a 60% alcohol solution. On hand, you have a 75 ml of a 15% alcohol mixture. You also have…

A: *let 'x' mL of the 85% solution is mixed on hand,we have a 75 mL of 15% alcoholmixture.By mixing…

Q: You need a 15% alcohol solution. On hand, you have a 60 mL of a 10% alcohol mixture. You also have…

A:

Q: a pharmacist wishes to mix a solution that is 4% minoxidil. she has on hand 70 ml of a 3% solution…

A: We can express concentration as amount of solute/volume of solution i,e, c = n/v or, n = c × v

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…

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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: How much water must be evaporated from 240 gallons of a 3% salt solution to produce a 5% salt…

A: Let  the amount of water to be evaporated be x first we have 240 gallons of 3% salt i.e 7.2 gallons…

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 60% alcohol solution. On hand, you have a 240 mL of a 5% alcohol mixture. You also have…

A: Given, We need a 60 % alcohol solution  We have 240 mL of a 5% alcohol mixture 90 % alcohol mixture…

Q: You need 1050 mL of a 30% alcohol solution. On hand, you have a 25% alcohol mixture. How much of the…

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Q: You need to mix a 6% peroxide solution with a 9% peroxide solution to obtain 36 ounces of an 8%…

A: Given- Mixing of two solutions with a 6% peroxide solution and a 9% peroxide solution to obtain a 36…

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: 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: A pharmacist needs to fill an order for a 3% lidocaine topical cream. However, only 2% and 4%…

A: Let assume quantity of 3% cream = x gm Quantity of 2% cream = 30 gm So quality of 4% cream = (x -…

Q: A chemist wants to make 50ML of 16% acid solution by mixing a 13% acid solution and an 18% acid…

A: Let x be the   millilitre of 13% solution And y be the millilitre of 18% solution Chemist wants to…

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: What amount of pure acid must be added to 400mL of a 40% acid solution to produce 75% acid solution?

A: Let x mL has to be added

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

A:

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: A chemist needs to stengthen a 25% solution with a 60% solution to obtain a 30% solution. How much…

A: A chemist needs to strengthen a 25% solution with a 60% solution to obtain a 30% solution.  300 be…

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: What quantity of a 75% acid solution must be mixed with a 25% solution to produce 600 mL of a 40%…

A: 75% of acid to be mixed with 25% of solution to make 600ml of 40% solution.

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 70% alcohol solution. On hand, you have a 240 mL of a 35% alcohol mixture. How much pure…

A: Given that need a 70% alcohol solution and have a 240 ml of a 35% alcohol mixture. Find how much…

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 much alcohol must be added to 24 gallons of a 14% solution of alcohol in order to produce a 20%…

A: Let x gallon alcohol has to be added.  So total amount of the mixture is = (x+24) gallons   24…

Q: What quantity of 80% acid solution must be mixed with a 20% solution to produce 400ml of a 60%…

A: Given we need to form a 400 ml of a 60% solution by mixing 80% acid solution with 20% solution.Let…

Q: How much water should be added to 1 gallon of pure antifreeze to obtain a solution that is 60%…

A: Let water to be added be x First we have 100% antifreeze solution

Q: You need a 75% alcohol solution. On hand, you have a 135 mL of a 10% alcohol mixture. You also have…

A:

Q: You need a 70% alcohol solution. On hand, you have a 120 mL of a 55% alcohol mixture. You also have…

A: To Determine: .how much of the 80% mixture will you need to add to obtain the desired solution?…

Q: You need a 45% alcohol solution. On hand, you have a 210 mL of a 35% alcohol mixture. You also have…

A: Let, the amount of solution of the 60% mixture is X ml.Adding 210 ml of 35% mixture,will…

Q: How many quarts of pure antifreeze must be added to 3 quarts of 10% antifreeze soulotion to obtain a…

A:

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

A:

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: You need a 95% alcohol solution. On hand, you have a 55 mL of a 50% alcohol mixture. How much pure…

A: You need a 95% alcohol solution. On hand, you have a 55 mL of a 50% alcohol mixture. To determine…

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

A:

Q: A laboratory has a solution that contains 9 ounces of benzalkonium chloride. If this is 15% of the…

A: Given that, a solution contains 9 ounces of benzalkonium chloride.Find the total solution, if given…

Q: What quantity of a 70% acid solution must be mixed with a 40% solution to produce 150 mL of a 60%…

A: Given.

Q: You need 850 mL of a 70% alcohol solution. On hand, you have 5% alcohol mixture. You also have 90%…

A: I am going to solve the given problem by using some simple algebra to get the required result of the…

Q: You need 1045 mL of a 10% alcohol solution. On hand, you have a 5% alcohol mixture. How much of the…

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Q: You need a 25% alcohol solution. On hand, you have a 300 mL of a 40% alcohol mixture. How much pure…

A: