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One half of the proof?
One half of the proof is the percentage. 100 proof alcohol is 50% or half alcohol.
What is the meaning of percent by volume in science?
Suppose there is x% by volume of something in a mixture then it simply means out of 100 ml of that sample x ml is of that thing. ------------------------------------------------------------------- There are two common ways of indicating how much of each element or compound is contained in a mixture. They are percent by volume and percent by weight. For example, the amount of alcohol in an alcoholic beverage is measured in proof, where one proof equals one half percent alcohol by volume.
How much solvent is needed to make 200 ml of 50 percent rubbing alcohol?
200 ml X .50 = 100 ml
How many ounces of the 50 percent alcohol solution should be mixed with the 1 percent alcohol solution to make 8 oz of the 20 percent alcohol solution?
Let x = ounces of 50% solution, and y = ounces of 1% solution. So that we have: 0.5x + 0.01y = 8(0.2) which is a linear equation in two variables, meaning there are infinitely many choices of mixing those solutions.
How do you do 50 percent plus 50 percent?
50% + 50% = 100%
