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	A gas and oil mixture		2018-09-16
		April pose la question : For a new motor bike, the recommended ratio of gas to oil is 27:1 by volume. How much gas and how much oil are needed to fill a 14 L tank on a new motor bike? Thank you Penny Nom lui répond.
	A sulphuric acid solution		2018-07-12
		Tan pose la question : How much 96% h2so4 to add into sulphuric acid 30% in order to make it to 50% sulphuric acid? Penny Nom lui répond.
	Mixing oil and gas		2014-03-07
		Geoff pose la question : What amount of oil would I need to mix on 50-1 basis for a-4litre tank (13.57ozs) capacity tank. Thank you Penny Nom lui répond.
	Some mixed nuts		2014-02-12
		Andrew pose la question : How many kg of mixed nuts that contain 30% peanuts must Paul add to 6kg of mixed nuts that contain 38% peanuts to make a mixture that contains 33% peanuts? Penny Nom lui répond.
	Mixing water and wine		2014-01-19
		manish pose la question : a man mixes three part of water to one part of wine.When he consumes one part of mixture he realise that the drink is too dilute and hence adds one part of wine to the remaining quantity what is the ratio of water to wine in the new mixture. Penny Nom lui répond.
	A 7% solution		2014-01-14
		imran pose la question : what amount of H2SO4 should be added to make 5mL of 0.7% H2SO4 solution Penny Nom lui répond.
	A mixture problem		2013-08-11
		MJ pose la question : How many liters of pure acetic acid must be mixed with 3 liters of a 30% acetic acid to obtain a mixture of 65%? Penny Nom lui répond.
	Dilution of concentrated acid		2013-07-31
		Adom pose la question : I have 500mls of 90% conc. of an acid. Now I need to prepare 20% concentration from this (say 100mls of this). How much of the stock solution do I take and how much water to add? Thanks! Penny Nom lui répond.
	A mixture problem		2013-07-29
		Lucy pose la question : Hi, For the following question: Ten pounds of mixed nuts contain 50 percent peanuts. How many pounds of peanuts must be added so that the final mixture has 60 percent peanuts?(A) 2.5 (B) 5 (C) 6 (D) 10 (E) 12.5, my math book gives my the following explanation: Try choice (C): 6 pounds of peanuts. The original 10-pound mixture contained 50 percent peanuts, or 5 pounds. Now you have 11 pounds of peanuts in a 16-pound mixture, more than 60 percent. This result automatically eliminates choices (D) and (E) as well.Why would this result automatically rule out D and E? How can you tell? Thank you for taking the time to answer my question. Robert Dawson and Penny Nom lui répond.
	A 25% sulfuric acid solution		2012-05-03
		Scott pose la question : In order to make a 25% solution with 96% Sulfuric Acid, how much of the Sulfuric do I add to DI water to make up 2000ml?? Penny Nom lui répond.
	I need to make a 45,000 pound batch of this 80% MgO product		2012-01-26
		James pose la question : I have a 55% MgO product and 89% MgO product. I have unlimited pounds of each MgO product. I am looking to make a 80% MgO product. I need to make a 45,000 pound batch of this 80% MgO product. Penny Nom lui répond.
	An anti-freeze solution		2011-08-27
		aniish pose la question : The radiator of a jeep has a capacity of 4 gallons. It is filled with an anti-freeze solution of water and glycol which analyzes 10% glycol.what volume of the mixture must be drawn off and replaced with glycol to obtain a 25% glycol solution? all percentages are by volume Penny Nom lui répond.
	A mixture problem		2010-02-24
		Nathan pose la question : How many gallons of 60% solution must be added to 40 gallons of a 10% solution to produce a 20% solution? Penny Nom lui répond.
	Mixing oil		2010-02-03
		Andrew pose la question : A dealer wishes to produce 300 gallons of oil worth 40cents a quart. He has oil worth 36cents a quart and oil worth 52cents a quart. How many quarts of each should he mix? Penny Nom lui répond.
	A solution of 45% acetic acid		2009-09-28
		Autumn pose la question : if a chemist has a 4 liter solution that consists of 90% acetic acid, how much water does he need to produce a solution of 45% acetic acid? Penny Nom lui répond.
	Mixing candy		2009-01-27
		adriana pose la question : The question says: that a merchant wishes to mix candy worth 45 cents per pound, with some candy that costs 80 cents per pound. this will create a mixture of candy that sells for 65 cents per pound. there is a total amount of 350 pounds of candy. What i need to know is: The amount of pounds of candy at 65 cents per pound? and The amount of pounds of candy at 80 cents per pounds? Harley Weston lui répond.
	A 10% salt solution		2009-01-12
		Joanna pose la question : How many liters of water must evaporate from 40 liters of a 10% salt solution to make a 25% salt solution? Robert Dawson and Penny Nom lui répond.
	A water acid mixture		2008-08-19
		Sulagna pose la question : A chemical solution is made by mixing an acid with water in the ratio 1:24. This solution is then taken and mixed with water in the ratio 1:3. How much acid would be there in 200ml of this final solution? Penny Nom lui répond.
	What is the % of the resulting solution?		2008-04-20
		RON pose la question : USING 4 PARTS OF 80% SOLN AND 1 PART OF 20% SOLN, WHAT IS THE % OF THE RESULTING SOLN? FOR 120ML USE 96 ML OF THE 80% SOLN AND 24 ML OF THE 20% SOLN BUT WHAT IS THE % OF THE RESULTING SOLN? PLEASE SEND HOW TO CALCULATE THE %. IS THE ANSWER 68% ?? Penny Nom lui répond.
	A water alcohol mixture		2008-04-20
		Mary pose la question : How many oz. of solution that is 90% alcohol ( and 10% water) is needed to be mixed with 5 ounces of a solution that is 50% alcohol in order to obtain a solution that is 80% alcohol? Penny Nom lui répond.
	2500mL of Phosphoric acid		2008-04-09
		Trina pose la question : If I have 2500mL of Phosphoric acid that has a fluoride concentration of 0.91% and need to increase it to 1.40% how much 49% HF do I need to add? Harley Weston lui répond.
	20 gallons of concentrate		2007-11-20
		Ken pose la question : What is the formula I need to use? I have 20 gallons of concentrate. I am mixing it at 0.5%. How many total gallons of solution will I end up with? I came up with 4000 gallons of solution - but not using the easiest of methods. Penny Nom lui répond.
	Mixing planting soil		2007-10-22
		Ken pose la question : Stephen owns a gardening supply store that sells two brands of planting soil, each of which contains plan food. Brand A contains 10% plant food, while brand B contains 7% plant food. To accommodate a customer, the store will combine the two brands to make 3 lbs of an 8% plant food mixture. How much of brand A and brand B should be used? Stephen La Rocque lui répond.
	A mixture problem		2007-08-21
		Arul pose la question : Hi Please help me with this question Seed mixture X is 40 percent ryegrass and 60 percent bluegrass by weight; seed mixture Y is 25 percent ryegrass and 75 percent fescue. If a mixture of X and Y contains 30 percent ryegrass, what percent of the weight of this mixture is X ? Stephen La Rocque lui répond.
	Grams of vodka		2007-07-10
		Andrew pose la question : milliliters to grams..vodka 80 proof? Stephen La Rocque lui répond.
	Gardening mixtures		2007-05-07
		Dan pose la question : A mixture of 1 part sulfur and 2 parts lime is added to soil as an amendment to prevent blossom end rot in tomatoes and green peppers. One Tablespoon of the above mixture is added to each hole prior to planting (using the comparative standard of 1 Tablespoon [US] = 0.5 ounce [US liquid]). How many ounces of each component must I mix to have an adequate amount to add to 150 planting holes? Stephen La Rocque lui répond.
	A 30% alcohol solution		2007-04-02
		Jessica pose la question : How many gallons of distilled water must be mixed with 50 gallons of 30% alcohol solution to obtain a 25% solution? Penny Nom lui répond.
	Another mixture problem		2007-03-21
		roger pose la question : I have 6800 gallons of a 17% glycol solution. I need to add how many gallons of 100% glycol to this to raise the concentration to 22%, also 20%? Stephen La Rocque lui répond.
	A mixture problem		2007-03-21
		roger pose la question : I have 100 gallons of 100% glycol. I need to make this a 20% solution, would I just add this to 400 gallons to make the 20% glycol solution? Stephen La Rocque lui répond.
	Alligation		2007-02-09
		Shanah pose la question : Orders: 360 mL of 75% acetic acid Stock: 99% acetic acid and distilled water Find the volume of acetic acid and distilled water to get the needed concentration. Any help with this is greatly appreciated, Thanks Stephen La Rocque lui répond.
	How much lemon oil do you need to make 10.15L of polish?		2007-01-16
		Sajad pose la question : to make an environmentally safe furniture polish, you can combine lemon oil and mineral oil in the ratio 3:200, by volume. How much lemon oil do you need to make 10.15L of polish? Penny Nom lui répond.
	A mixture problem		2006-11-05
		Lynne Rae pose la question : How many kg of 30% salt solution by mass and 40% salt solution by mass should be mixed to form 200kg of 37% salt solution by mass? Penny Nom lui répond.
	I want to calibrate a glucose meter		2006-07-27
		John pose la question : If I have 3 glucose control solutions having: Low - 50 mg/dl Normal - 100 mg/dl High - 330 mg/dl I want to calibrate a glucose meter but I need more than these 3 data points. How can I mix these up to get different concentrations in between 50 and 100, 100 and 330. I would like to mix up different concentrations and put them in test tubes or whatever to do some calibration work. Like 70 mg/dl, 90 mg/dl, etc. More data points should be in between say 50 and 100 since this is normal, 90 mg/dl is considered close to normal. Stephen La Rocque lui répond.
	Diluting an acid solution		2006-02-25
		Alex pose la question : IF YOU HAVE 1 Litre OF A 70% ACID SOLUTION, AT WHAT RATIO DO YOU DILUTE IT WITH WATER TO ACHIEVE A 30% AND 50% ACID SOLUTION? Penny Nom lui répond.
	A mixture		2005-04-06
		Ray pose la question : two known values product # 1 = 60% protein product # 2 = 80% protein How much of the #2 product would I need to add to the # 1 product to create a third product of 65% Penny lui répond.
	If the mixture is 1 pint to 6 gal		2005-03-13
		Trey pose la question : If the mixture is 1 pint to 6 gal. Do i use 4 pints to 24 gallons of gas Penny lui répond.
	Spraying roses		2005-03-03
		A student pose la question : A litre and a half of water has 0.045 grams of herbicide added for spraying roses. How many grams of herbicide per litre is this? Penny Nom lui répond.
	A mixture problem		2004-09-30
		Abraham pose la question : A chemist has one solution that is 35% pure acid and another solution that is 75% pure acid. How many cubic centimeters of each solution must be used to produce 80 cubic centimeters of solution that is 50% acid? Penny Nom lui répond.
	Mixing Brazil nuts and cashews		2003-11-09
		Bob pose la question : Cashews are sold for 1.20 per 1/4 pound and Brazil nuts are sold for $1.50 per 1/4 pound. If you mix 20lbs of Brazil nuts, how many cahsews would it take to make a mix that sells for $1.30 per 1/4 pound? Penny Nom lui répond.
	Preparing 100ml of a 30% alcohol solution		2003-07-13
		Justin pose la question : My question is how do you prepare a 100ml of a 30% alcohol solution using 95% alcohol? Penny Nom lui répond.
	A mixture problem		2003-07-10
		A student pose la question : Having a problem with word problems. example A chemist mixes a 10% acid solution with a 50% acid solution to form 400mL of a 40% solution. How much of each solution should be used. Penny Nom lui répond.
	Mixing solutions		2002-09-13
		Margaret pose la question : In a chemistry laboratory the concentration of one solution is 10% hydrocholoric acid (HCl) and that of a second soulution is 60% HCl. How many mL of each should be mixed to obtain 50 mL of a 30% HCl solution?? Penny Nom lui répond.
	A mixture problem		2000-03-06
		Rebecca Edwards pose la question : A tank in which cholocate milk is being mixed contains a mixture of 460 liters of milk and 40 liters of chocolate syrup initially. Syrup and milk are then added to the tank at the rate of 2 liters per minute of syrup and 8 liters of milk per minute. Simultaneously the mixture is withdrawn at the rate of 10 liters per minute. Find the function giving the amount of syrup in the tank at time t. Harley Weston lui répond.
	Percentage Question		1998-05-18
		Eddie Knox pose la question : Example: If I have a recipe calling for 16 ounces of 4% vinegar (vinegar which has been diluted with water to a strength of 4%), and all I have on hand is 16 ounces of 5% vinegar, how much water should I add to decrease the strength to 4%, before measuring the 16 ounces to be used. I'll appreciate any insight and help. Thank you so much! Harley Weston lui répond.

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