Which of these is the most dense?
--An object with a volume of 2.5L and mass of 12.5kg
--An object with volume of 139mL and a mass of 93g
-- An object with a volume of 2.12 x 10^-3 m^3 and mass of 4.22 x 10^4 mg
-- An object with volume of 3.91 x 10^-24 nm^3 and a mass of 7.93 x 10^-14ng
--An object with a volume of 13dm^3 and a mass of 1.29 x 10^3 ug
I got D but I am reworking it now, think my conversion was wrong.
2. And this one I couldnt figure out how to set it up exactly :
An individual suffering from high cholesterol level in her blood has 232mg of cholesterol per 100 mL of blood. If the total blood volume of the individual is 5.2l, how many grams of total blood cholesterol does that individual contain?
Is the start 232mg/100mL then convert from there?
10 points!
2007-09-04 14:30:12 · 2 answers · asked by Calib 1 in Science & Mathematics ➔ Chemistry
Density = mass / volume. You r problem to compare, is that they should all be in the same units. I suggest convert all to grams / cm3.
In problem #2, convert the 5.2 L to 5,200 ml and then your ratio will be easy to calculate.
2007-09-04 14:35:43 · answer #1 · answered by reb1240 7 · 0⤊ 0⤋
a million enable R be the cost of the orange via the subject, a grapefruit is 15 greater then an orange or R + 15 so the cost of an orange and grapfruit could desire to equivalent 80 5 (via the question) R + R + 15 = 80 5 2R + 15 = 80 5 2R = 70 R = 35 The orange is 35 Cents, and the Grapefruit is 50 Cents #2 Perimeter of a rectangle is defined as 2W + 2L (the place L = length & W = Width) enable x = the width enable 3x = the dimensions enable p = the fringe 2L + 2W = P 3x(2) + x(2) = 24 6x + 2x = 24 8x = 24 x = 3 Plugging decrease back in, L = 9 W = 3
2016-11-14 05:24:07 · answer #2 · answered by lauramore 4 · 0⤊ 0⤋