Convert the given density in mg/dL into a quantity with unit of g/L. This is shown below, (200 mg / dL) x (10 dL / L) x (1 g / 1000 mg) = 2 g/L Multiplying this quantity with the volume given, 5L, gives an answer of 10g.
A normal adult has 10 grams of cholesterol in 5 liters of blood.
Explanation:
A normal value for blood cholesterol is 200 mg per 1 dL of blood. The milligram is a unit of mass, being one thousandth of the gram, while the deciliter (dL) is a unit of volume equivalent to one tenth of a liter. Therefore, a normal value for blood cholesterol is of 0,2 grams per 0,1 liters of blood. If a normal adult has a total blood volume of 5 liters, and a liter of blood has 2 grams of cholesterol (0,2 x 10), a normal adult has 10 grams of cholesterol in 5 liters of blood.
According to the law of conservation of matter, matter is neither created nor destroyed, so we must have the same number and kind of atoms after the chemical change as were present before the chemical change.
Given the equilibrium reaction: 2 A (aq) + 3 B (aq) <— —> 2 C (aq) + D (aq) and equilibrium concentrations of [A] = 0.60M, [B] = 0.30 M, [C] = 0.10 M and [D] = 0.50 M. The Kc value will be: a. 1.9 c. 2.4 b. 0.15 d. 0.51
