0.05g of x per 100cm3 what is this parts per million?

Answer 1

50mg in 100ml = 500mg/l

This is equivalent to 500ppm

Let me explain, so that some of your other replies can understand. This is a weight/volume situation. 1000mg in 1g and 1,000,000mg in 1 kg; since 1 litre contains 1000ml and each ml is nominally 1 gramme, with 1000g in a kilo, the units can be changed. Yes we do have to assume that the litre is equivalent to the kilogramme, but that's the beauty of it.

Now, 0.050g is 50mg and 100ml is 1/10 of 1 litre - convert to litres and you have 500mg per litre or 500mg per 1,000,000mg
hence the parts per million.

You must trust this concept 100% as it works!

Answer 2

trick question you have neither molarity or the molecular mass of x You can only get as far as that you know you have 500mg/l but to go from Volume of a solution to the parts per million, you have to know MM, Molarity, or number of Moles of "x" in the substance, otherwise, all you have is that you could have one 50mg particle and 100ml of water, in which the ppm is near nil, or you have trillions of particles that add up to 50mg and take up a large volume of space in which x occupies and very little water. Given this information, it is impossible to tell

Answer 3

Your units are all ambiguous.
There cannot be a ratio between a mass and a volume unless the density(ies) is/are known.
Also, do you want the ratio of masses or the ratio of volumes?
Also, is it (100 cm) cubed? (a cubic meter)
or 100 (cubic centimeters)?
Sorry about being picky, picky, picky.
Assuming the density of water (1 gr/cc) for your 0.05 grams, and you want the volume ratio, and you meant 100 cc; it is:
(1,000,000/100) * 0.05 = 500 ppm

Answer 4

0.5g per 1000cm^3
500parts(g) per 1000 000(million)

Answer 5

500 ppm.Verify from

Answer 6

50000