Which of the following solutions is the most concentrated? ?

👨🏻‍🏫 學術台化學

[匿名]

2021-01-22 10:18 am

20mg/L or 20 ug/uL? Thanks!

回答 (3)

Uncle Michael

2021-01-22 10:32 am

✔ 最佳答案

20 μg/uL
= (20 μg/uL) × (1 mg/1,000 μg) × (1,000,000 uL / 1 L)
= 20,000 mg/L
> 20 mg/L

Hence, 20 μg/uL is more concentrated than 20 mg/L.

👍 4 👎 0

Roger the Mole

2021-01-23 2:46 am

m = 10^-3

20 mg/L = 0.020 g/L
20 ug/uL = 20 g/L

So the second solution is more concentrated by a factor of 1000.

👍 1 👎 0

busterwasmycat

2021-01-22 10:01 pm

20 ug/uL = 20 g/L, which is clearly much larger than 20 mg/L (=0.02g/L).

👍 1 👎 0