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What is 355 ppm in imperial weight?
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Asked in Organic Chemistry
What is ppm by volume?
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Asked in Natural Gas, How To
How to convert 10 ppm mole of H2O to ppm wt in natural gas?
What is the most common ion found in ocean water?
Chloride, (Cl-), 19,345 ppm (weight) Sodium (Na+) 10,752 ppm (weight) Sulfate (SO42-) 2,701 ppm (weight) Magnesium (Mg2+) 1,295 ppm (weight) Calcium (Ca2+) 416 ppm (weight) Potassium (K+) 390 ppm (weight) Notes indicate that there is a self-ionization of water into H+, H3O+, and OH- at a concentration of about 1.0x10-7 mol/L There are also notes of a significant amount of dissolved Oxygen (O2) in seawater. One would consider it as a stable covalently bonded molecule, but having unshared electrons, I can't rule out it participating with ion formation.
Asked in Units of Measure, Physics, Chemical Engineering, Percentages, Fractions, and Decimal Values
How do you convert ppm to weight percent?
To convert ppm to wt%, you need to divide ppm with 1000000 to get to wt%. For example: If you have 4000ppm, it is the same as 0.004 wt%. I dont agree with this answere. Actually 4000ppm means 4000mg in 1Kg (1000g). Hence a simple solution is as under; 1000g contains 4000mg or 1000g contain 4 gm. Hence 100g will contains 0.4 grams. This is the answere i.e. 0.4% because % means amount present in 100 grams. The first answer above should be: To convert ppm to wt% (percent by weight), you need to divide ppm by 10,000. For example: If you have 4000 ppm, it is the same as 0.4 wt%. If a lab result for the concentration of lead (Pb) in a paint chip sample is 10,400 ppm, the concentration in percent lead by weight is 1.04. If the result is reported as 1.04 % Pb by weight, then the concentration can be converted to 10,400 ppm.