This cannot be sensibly answered. Milliliters (mL) is a measure of volume, grams is a measure of weight or mass.
To convert grams to pounds, you need to take the mass in grams and multiply it by 0.0022046. If you're going from pounds to grams, then you need to take the weight in pounds and multiply by 453.6. (The two numbers for conversion are rounded, but they will suffice for everyday conversions). In this case, the mass given would be about 0.121 pounds.
153 grams
This mass is 5,323 grams.
249.72 g/mol
You can weight 125 g from any mineral.
Density = Mass/Volume = 150/6 = 25 grams per cm3.
Fill a beaker with water, and weigh it. Weigh a sample of the mineral. That's the mass of the mineral. Put the sample in the beaker and weigh that. The weight of the water-filled beaker plus the weight of the mineral sample will be greater than the weight of the beaker with mineral sample and water. The difference is the weight of the displaced water, in grams. The volume of the mineral sample, in cubic centimeters is equal to the weight of the displaced water, in grams. Calculate the specific gravity of the mineral by dividing the weight of the mineral sample by the volume of the mineral sample. Example: your beaker weighs 40 grams. Filled with water, it's 1040 grams. The sample of mineral weighs 160 grams. The beaker with the sample of mineral and water weighs 1179.7 grams. The mineral, and the beaker with water would have a combined weight of 1200 grams, but the beaker with mineral and water weighs 20.3 grams less than that, so the mineral sample is displacing 20.3 cubic centimeters of water. Given a mass of 160 grams and a volume of 2.03 CC, the specific gravity would be found by dividing 160 by 20.3. It's 7.85. (Which happens to be the specific gravity of some iron.)
5.02 g/cm3
This is simple math. Density=Mass(grams)/Volume(milliliters) so since 3^3=27 then it works out to a simple D=54/27 aka 2. 2kg/L to be exact.
54 grams = 0.119049622 pounds
most likely it is quartz
640 grams of Oxygen
54 grams = 0,119 049 6 pound
For this you need the atomic mass of Al. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel.54.0 grams Al / (27.0 grams) = 2.00 moles Al
This cannot be sensibly answered. Milliliters (mL) is a measure of volume, grams is a measure of weight or mass.
One kg = 1000 grams. So one gram is 10^-3 kilograms. Kilograms and grams are both the metric units of mass. So the answer is 0.054 KG