How many grams of lactose are present in 150 μL of cow's milk?
What is the molar concentration of lactose in cow’s milk?
What is the parts per million concentration of lactose in cow's milk?
What is the molar concentration of lactose in cow’s milk?
What is the parts per million concentration of lactose in cow's milk?
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5.3 % (w/v)?
is 5.3 grams lactose / 100 mls of milk =
53 grams / litre
How many grams of lactose are present in 150 μL of cow's milk?
(150 X 10^-6 litres) (53 grams / litre) = 0.00795 grams in 150 μL of cow's milk
rounded to 2 sifg figs, your answer is:
0.0080 grams in 150 μL of cow's milk
What is the parts per million concentration of lactose in cow's milk?
ppm is the same as milligrams of lactose / litre milk
(53 grams / litre) (1000 mg / gram) = 53,000 milligrams per litre
aka
53,000 ppm
What is the molar concentration of lactose in cow’s milk?
use molar mass to convert grams into moles
(53 grams / litre) (1 mol Lactose / 342.30 gram) =0.1548 Molar
your answer, rounded to 2 sig figs, would be:
0.15 Molar
is 5.3 grams lactose / 100 mls of milk =
53 grams / litre
How many grams of lactose are present in 150 μL of cow's milk?
(150 X 10^-6 litres) (53 grams / litre) = 0.00795 grams in 150 μL of cow's milk
rounded to 2 sifg figs, your answer is:
0.0080 grams in 150 μL of cow's milk
What is the parts per million concentration of lactose in cow's milk?
ppm is the same as milligrams of lactose / litre milk
(53 grams / litre) (1000 mg / gram) = 53,000 milligrams per litre
aka
53,000 ppm
What is the molar concentration of lactose in cow’s milk?
use molar mass to convert grams into moles
(53 grams / litre) (1 mol Lactose / 342.30 gram) =0.1548 Molar
your answer, rounded to 2 sig figs, would be:
0.15 Molar