This cannot be answered because it is essential to know what element you're dealing with here. 8.2 grams of iron will contain considerably less atoms than 8.2 of hydrogen. Therefore, the number of moles in 8.2 grams of iron will differ from the number of moles in 8.2 grams of hydrogen.
16 grams of oxygen how many moles is 0,5 moles.
.75 moles times 64 grams/mols = 48 grams
53 grams ÷ 18.01 grams/mole = 2.94 moles
180 grams of water is 10 moles of water.
222,6 grams of iodine is equivalent to 1,754 moles.
370 grams of mercury is equal to 1,844 moles.
380.7 grams of iodineis equivalent to 3 moles.
1,8 grams of fluorine is equivalent to 0,0947 moles.
120 grams of calcium contain 2,994 moles.
500 grams of radium is equal to 2,21 moles.
0.377 grams of Kr is equal to 0,0045 moles.
320 grams of oxygen is the equivalent of 10 moles.