My question was
A person’s blood cholesterol level is 245 mg/dL. (1g=1000mg; 1L=1000mL). Show all calculations.
What is the cholesterol concentration in ppT (part per thousands) and ppm (parts per million)?
And your answer was
For ppm just remember that 1 ppm = 1 mg/L.
So 245 mg/dL = 2450 mg/L = 2450 ppm
Divide 2450 ppm by 1000 to obtain ppt.
Can you explain me how you got 2450 mg/L?
245 mg/dL*10dL/L = 2450 mg/L = 2450 ppm
deci is 1/10 so 10 deci= 1 whole
Thanks bobpursley
Certainly! To convert the blood cholesterol level from mg/dL to mg/L, you need to consider that 1L is equal to 1000 mL.
Given that the original value is given in mg/dL, meaning milligrams per deciliter, you first need to convert it to milligrams per liter.
To do this, you divide the original value by 10 to convert deciliters to liters. Therefore:
245 mg/dL ÷ 10 = 24.5 mg/L
Now that the value is in mg/L, you can directly convert it to parts per million (ppm) since 1 ppm is equivalent to 1 mg/L. Thus:
24.5 mg/L = 24.5 ppm
To obtain parts per thousand (ppt), you divide the ppm value by 1000, as 1 ppt equals 1/1000th of 1 ppm. Thus:
24.5 ppm ÷ 1000 = 0.0245 ppt
Therefore, the cholesterol concentration in ppm is 24.5 ppm, and in ppt is 0.0245 ppt.