Finding percentage requires the number to be in fraction. You can covert a whole number into fraction, by making it the numerator and making 1 as the denominator. If A is numerator and B is denominator then,
% = A/B * 100
Chi a+
CHI3
What is the formula for percent fractional error? (Physics)
100 %
C3 h3o
How do you get 20 percent out of 200?You have to use this formula; is/of = %/100. That formula will give you the answer every single time!The answer is: 40.
The formula for percent by volume (% v/v) is: (Volume of solute / Volume of solution) x 100 The formula for percent by mass (% w/w) is: (Mass of solute / Mass of solution) x 100
Not completely. The empirical formula of a substance can be determined from its percent composition, but a determination of molecular weight is needed to decide which multiple of the empirical formula represents the molecular formula.
70 percent
C3h4o2
The empirical formula of this compound would be MgO.
It's anybody's guess what such a formula might look like,because 20 is not 75 percent of 15.75 percent of 15 is 11.25 .15 is 75 percent of 20 .