Question

In clinical lab reports, some concentrations are given in mg/dL m g / d L . Convert a Ca2+ C a 2 + concentration of 6.2 mg/dL m g / d L to %m/v % m / v .

Answer 1

To convert a concentration of 6.2 mg/dL to %m/v, we convert mg to grams and dL to mL, use the formula %m/v = (mass in grams/volume in mL) x 100, and find that the converted concentration is 0.0062% m/v.

Step-by-step explanation:

To convert a Ca2+ concentration of 6.2 mg/dL to %m/v, we need to use the definition that %m/v is the mass in grams of a solute, divided by volume in milliliters of solution times 100. Since we have the concentration in mg/dL, we first convert mg to grams and dL to mL.

There are 1000 mg in 1 gram and 100 dL in 1 L (which is 1000 mL), so:

• 6.2 mg is equal to 6.2/1000 grams = 0.0062 grams
• 1 dL is equal to 1000/10 mL = 100 mL

Using the formula for %m/v:

• %m/v = (mass of solute in grams / volume of solution in mL) x 100
• %m/v = (0.0062 grams / 100 mL) x 100 = 0.0062%

Therefore, the converted concentration of Ca2+ is 0.0062% m/v.