In clinical lab reports, some concentrations are given in mg/dL. Convert a Ca2+ concentration of 3.5 mg/dL to weight/volume percent.
3.5 mg/dL = 0.0035 g/dL.
= 0.000035 g/mL.
= 0.0035 g/mL = 0.0035%(m/v)
thank you so much! I understand it way better now!
I made a typo, actually, an omission.
3.5 mg/dL = 0.0035 g/dL.
= 0.000035 g/mL.
= 0.0035 g/mL = 0.0035%(m/v)
This last line should be 0.0035 g/100 mL = 0.0035%(mv)
To convert a concentration from mg/dL to weight/volume percent, you need to consider the molecular weight of the substance in question. In this case, Ca2+ refers to calcium ions. The molecular weight of Ca2+ is 40.08 g/mol.
To calculate the weight/volume percent:
Step 1: Convert mg/dL to g/L
To convert from mg/dL to g/L, divide the value by 10:
3.5 mg/dL ÷ 10 = 0.35 g/L
Step 2: Convert g/L to g/100mL
To convert from g/L to g/100mL, divide the value by 10:
0.35 g/L ÷ 10 = 0.035 g/100mL
Step 3: Convert g/100mL to weight/volume percent
To convert from g/100mL to weight/volume percent, multiply the value by 100:
0.035 g/100mL × 100 = 3.5 weight/volume percent.
Therefore, a Ca2+ concentration of 3.5 mg/dL is equivalent to 3.5 weight/volume percent.