The equation means both a and b.
Marble moles to grams.
Notice that the gram units cancel nicely and the only unit left standing is moles so we know we have to be right.
Multiply the moles given by the substance s molar mass.
How many moles of marble caco3 are there in a 275 g piece of marble.
Density of marble is equal to 2 711 kg m.
At 25 2 c 77 36 f or 298 35k at standard atmospheric pressure in imperial or us customary measurement system the density is equal to 169.
The molar mass of h 2 o 2 is 34 0146 grams mole.
0 700 mole x 34 0146 grams mole 23 8 grams.
We ll use the molar mass as moles over grams or grams over moles as we see fit to make our units come out the way we need them to.
Marble weighs 2 711 gram per cubic centimeter or 2 711 kilogram per cubic meter i e.
D how many moles of marble will be consumed if 5 mol h2so4 fall onto the statue.
169 2422 pounds lbs of marble fit into 1 cubic foot.
At 25 2 c 77 36 f or 298 35k at standard atmospheric pressure in imperial or us customary measurement system the density is equal to 169 2 pound per cubic foot lb ft or 1 567 ounce per cubic inch oz inch.
Marble weighs 2 711 gram per cubic centimeter or 2 711 kilogram per cubic meter i e.
2 69 l co2 f how many grams of the statue will be consumed if 500 g h2so4 fall onto the statue.
When calculating molecular weight of a chemical compound it tells us how many grams are in one mole of that substance.
A common request on this site is to convert grams to moles.
Finding molar mass starts with units of grams per mole g mol.
Using number of moles to find grams commonly a question asks for grams of solute especially if the substance must be measured in a laboratory setting.
Three moles of hydrogen react with one mole of nitrogen to form two moles of ammonia.
5 mol caco3 e how many liters of co2 are produced when 12 g marble are reacted at stp.
If the question asks for how many grams of sucrose must be added to make a 0 02 m solution these additional steps may be followed.
4 57 x 10 22 b.
Three grams of hydrogen react with one gram of nitrogen to from two grams of ammonia.
The formula weight is simply the weight in atomic mass units of all the atoms in a given formula.
Density of marble is equal to 2 711 kg m.
You may wish to pause and calculate this value if you desire the practice.
2 711 kilograms kg of marble fit into 1 cubic meter.
This free density calculator determines any of the three variables in the density equation given the other two.
For the most part it s usually pretty uninteresting to know how many moles of some substance we have.
