There are approximately 4.0 moles of Helium in 16 grams of the element.
16 grams of oxygen how many moles is 0,5 moles.
number of moles = mass of the element/molar mass of the element
The answer is 2,7 moles.
to convert an element to moles you need to setup and equation, for our example we will be using 5g of O2 or oxygen. You need to know what O2's molar mass is as well, it is 32g. So the equation would be 5g of O2 / 32 = .16 moles of O2. So to convert moles to grams all you do is multiply the moles given by the molar mass of the element/compound and you have your grams Hoped this helped : )
156 g calcium is equivalent to 3,89 moles.
4,0 moles of the manganese contain 219,75 g.
4,0 moles of the manganese contain 219,75 g.
it all depends on what element you are talking about
it all depends on what element you are talking about
using the formula: n=m/gfm no. of moles=mass/gfm you take the gram formula mass (gfm) as 4. and given the mass is 16g, both numbers can be substituted into the formula... n=16/4 = 4 the number of moles present in 16g of helium is 4 moles.
6.022 x 10e23
This depends on the specific element or compound.