The answer is: 3.61·10²⁴ atoms of oxygen.
n(NaNO₃) = 2.00 mol; amount of sodium nitrate.
In one molecule of sodium nitrate, there are three atoms of oxygen.
n(O) = 3 · 2 mol.
n(O) = 6.00 mol; amount of oxygen atoms.
N(O) = n(O) · Na.
Na = 6.022·10²³ 1/mol; Avogadro number.
N(O) = 6 mol · 6.022·10²³ 1/mol.
N(O) = 3.61·10²⁴; number of oxygen atoms.
Answer:
2.76 gram
Explanation:
2AI + 6HCl → 2AlCl3 + 3H2
- get the mol of aluminum => n = m / M = 25 / 27 = 0.925 (mol)
- get the ratio mol of Hydro => nH2 = 0.925 * 3 / 2 = 1.38 (mol)
- get weight of hydro mH2 = n x M = 1.38 x 2 = 2.76 (gram)
Hope you might understand
Answer:
1.) 28.0 grams of oxygen28 grams (1 mole/16 grams per mole)=1.75 moles oxygen2.)5.0 moles of Iron5 moles(55.845 grams/1 mole)=279.225 grams Iron3.) 452 grams Argon452 grams(1 mole/39.948 grams)=11.315 moles Argon4.) 16.5 moles Hydrogen16.5 moles(1.01 grams/1 mole)=16.665 grams Hydrogen
Explanation:
X equals <span>2.76923076923</span>