If you have a ratio (A/B) ... (you know the numbers 'A' and 'B') ... write the equation
x / 1,000,000 = A/B
and solve it for 'x'. 'x' is the ppm. Here's what the solution looks like:
Multiply each side by 1 million:
x = 1,000,000 A / B
and there you have it.
Convert them to fractions.
Convert all ratios to percentages or decimals (as you like) and then compare them.
Write an equation representing the ppm concentration: ppm = mass solute (mg) ÷ volume solution (L) Extract the data from the question: mass solute (NaCl) = 0.0045 g. ... Convert the mass in grams to a mass in milligrams: mass NaCl = 0.0045 g = 0.0045 g × 1000 mg/g = 4.5 mg.
To convert a ratio you turn it into a fraction or a different way of writing the ratio. For example, 6 to 5 could also be written as 6/5 or 6:5.
0.110 ppm = 0.000011%
0.5Mm = 50 PPM
Multiply ppm by 10000.
322 ppm = 0.0322%
ppm means 1/1,000,000; percent means 1/100. Therefore, every percent is equal to 10,000 ppm. To convert from ppm to percent, you divide by 10,000.ppm means 1/1,000,000; percent means 1/100. Therefore, every percent is equal to 10,000 ppm. To convert from ppm to percent, you divide by 10,000.ppm means 1/1,000,000; percent means 1/100. Therefore, every percent is equal to 10,000 ppm. To convert from ppm to percent, you divide by 10,000.ppm means 1/1,000,000; percent means 1/100. Therefore, every percent is equal to 10,000 ppm. To convert from ppm to percent, you divide by 10,000.
*1000
Divide ppm by 10,000:50,000 / 10,000 = 5 %
1 percent is 10,000 ppm .06 percent = (.06 x 10,000) = 600 ppm 90 ppm = (90 / 10,000) = 0.009 percent 0.06 percent is not the same thing as 90 ppm. This is not a math problem. You have to change the material. That's a chemistry problem.
Divide by 1000.
Multiply by 10,000: 0.0025 x 10,000 = 25 ppm
To convert 0.5 percent to parts per million (ppm), you multiply by 10,000. So, 0.5 percent is equal to 5,000 ppm.
To convert parts per billion (ppb) to parts per million (ppm), you divide by 1000. So, 28 ppb is equal to 0.028 ppm.
To convert parts per million (ppm) of a substance to grains per gallon (gpg), you need to know the atomic or molecular weight of the substance. Once you have this information, you can use the formula: gpg = ppm x (atomic/molecular weight/7000).