The molar mass of water is approximately 18.02 g/mol. Therefore, one mole of water would weigh approximately 18.02 grams, considering 4 significant figures.
5 grams is a unit of measurement used to express the weight of an object. It is equivalent to approximately 0.18 ounces or 0.01 pounds.
To convert moles to grams, you need to use the molar mass of magnesium fluoride, which is 62.301 grams/mol. Thus, 4.78 moles of magnesium fluoride would be 4.78 moles * 62.301 grams/mol = 298.06 grams of magnesium fluoride.
6.3 grams is a unit of measurement for mass. It is equal to approximately 0.22 ounces or 0.013 pounds.
40 grams is a unit of measurement for mass or weight. It is equivalent to roughly 1.41 ounces in the imperial system.
302.05 grams
302.05 grams
5
There are 4 significant figures in this problem.
4 of them.
five. 30.002
10.1+25.01+5.08
The significant figures are the ones which convey meaningful information about the measurement beyond the magnitude. Saying that a sample weighs .0000039 grams is better stated as 3.9 x 10^-6 grams or perhaps 3.9 micrograms. That's two significant figures. All the zeroes are not significant.
I would use grams because grams would give you more significant figures for the measurement than kilograms
The rule when rounding off numbers is "If the first figure to be discarded is 5 or more then the previous figure is increased by 1". When 16490 is rounded off to 2 significant figures then the first figure to be discarded is 4. As this is less than 5 then the previous figure (6) is not increased by 1. 16490 to 2 significant figures is 16000.
5 significant figures.
There are 3 significant figures in '4.50g'