first you must have a mass in mind. eg 345 grams of Carbon
divided the mass by the molar weight of the particular substance. In the case of Carbon 12 grams/mole
345 grams/12 grams/mole = 28.75 moles
Just multiply by the number of moles.
For this you need the atomic (molecular) mass of H2O. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel. H2O= 18.0 grams500.0 grams H2O / (18.0 grams) = 27.8 moles H2O
To convert from grams (g) to kilograms (kg), divide the given value by 1000.
NH3, or ammonia, has a molar mass of 17.031 g/mol. So .500 moles of the substance would equal 8.5155 grams.
42 grams = 1.482 ounces The formula to convert 42 grams to oz is: 42 g* 1 oz 28.34952313 g = 1.481506402 oz
4.2 g = 0.0042 kgTo convert from g to kg, divide by 1000.
You look up the atomic weight for calcium, which is equivalent to the number of grams per mole. Then you divide the 0.85 g by this number, to get the number of moles. From there, it should be easy to convert to millimoles.
xx mmol x 1 mole/1000 mmol x 58.5 g/mole
63.55 g/mol (63.55 grams per mole)
we know, 50 mM = 50/1000 moles per litre = 0.05 moles no. of moles = weight in grams/ weight of one mole weight of one mole of sodium acetate (CH3COONa) = 83g per mole no. of moles = 50/1000 = 0.05 moles thus weight in grams = 0.05*83 = 4.15 g
you convert it to g/mole. Think of Mole as the word "dozen." Whenever you see the word "mole" just cross it out and put in the word "dozen". Do the problem like that, and then change all of your dozens to 6^1023. A dozen is 12. A bakers dozen is 13 and a mole is....whatever...some other big number. It doesnt matter. How do you calculate mass of a liquid in grams/dozen? You usese it's atomic weight which is in grams and then convert.
Since the molar mass (grams per mole) of H2O is 18.02, the grams of H2O in 4 moles is 72.08g.
150 grams NH3 (1 mole NH3/17.034 grams)(3 mole H/1 mole NH3)(1.008 grams/1 mole H)= 26.6 grams hydrogen=================17 g of ammonia has 3 g of hydrogen.So 150 g of ammonia will have 26.5 g of hydrogen
Assumed that the question is "How to convert 5.67 g per 10 oz (in weight and not fluid ounces) to grams per gram" 1 ounce = 28.3495231 grams Hence 5.67 g per 10 oz is 5.67 g per 283.495231 grams and that is 0.02 gm per gm
The atomic weight of Cr is 52.0 g/molTo convert moles to grams:grams Cr = 3.21 mol Cr52.0 g = 167 g Cr1 molMultiply by grams per mole. Moles cancel out.
One definition of a mole is the sum of the average atomic weights (mass) of a compound. In this case 2 Copper + 1 Sulfur = (2 * 63.55) + (1 * 32.07) = 159.17 grams per mole. So 22 g / 159.17 g/mole = 0.14 mole of Cu2S
2.2 pounds = 997.903214 grams per Google Calculator
40.79 H2O kj/moles x 1 moles/18 grams= 2.266/1000=0.002266 joules/grams