The answer is 3 moles.
3.0 moles of H2O have 54 g.
54
When 1 mole of propanal (C3H6O) burns, it reacts with 4.5 moles of oxygen to produce 4 moles of water (H2O). The molar mass of water is approximately 18 g/mol. Therefore, the amount of water formed would be 4 moles x 18 g/mol = 72 grams of water.
To find the number of molecules in 54 grams of water (H₂O), first calculate the number of moles. The molar mass of water is approximately 18 g/mol, so 54 g of water is 54 g / 18 g/mol = 3 moles. Since one mole contains Avogadro's number of molecules (approximately (6.022 \times 10^{23})), the total number of molecules is 3 moles × (6.022 \times 10^{23}) molecules/mole, which equals about (1.81 \times 10^{24}) molecules of H₂O.
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
There are 1000 milligrams in a gram. Therefore 54000 milligrams is 54 grams.
54 US gallons of water equates to 0.204412 cubicmeters.
9/54*60= 10grams http://wiki.answers.com/Q/If_54_grams_granola_bar_has_9_fat_grams_how_many_does_a_60_gram_granola_have" WTF?
It is approximatly 11.38 Teaspoons. http://www.gourmetsleuth.com/cooking-conversions/gram-conversions.aspx
The mineral with a mass of 54 grams could be quartz, feldspar, or calcite. Minerals have varying densities, so a 54-gram sample of one mineral may occupy a different volume than a 54-gram sample of another mineral.
Oh, dude, let me break it down for you. So, in one molecule of H2O, there are two Hydrogen atoms. If you have 500.0 grams of H2O, that's like around 27 moles of water. Since each mole of water has 2 Hydrogen atoms, you've got around 54 Hydrogen atoms in that 500.0 grams of H2O.
54