Answer:
6
6
0.09564
Explanation:
Just did it my fellow people of the planet Earth.
One mole of any element contains 6.022×10²³ atoms which is also called Avogadro number. The mass of 0.159 mole silicon dioxide. is 9.55g.
The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity of amount of substance. It measure the number of elementary entities of a given substance that are present in a given sample.
Mathematically,
mole =given mass ÷ Molar mass
First of all we find the molar mass of silicon oxide
Molar mass of silicon oxide= atomic mass of silicon+2×molar mass of oxygen
Molar mass of silicon oxide=28.0855+2×16
Molar mass of silicon oxide=60.08 g/mol
Substituting the values in fisrt equation we get
0.159 mol=given mass÷60.08 g/mol
0.159 mole x 60.08 g/mol=mass
9.55g=mass of silicon oxide
Therefore the mass of 0.159 mol silicon dioxide. is 9.55g.
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Answer:
9.55 grams of SiO2
Explanation:
If the mass you mean by grams:
0.159 mole x 60.08 g (Periodic table by adding both elements)
Cancel moles with moles (Original moles with the 1 mol at the bottom of the grams) and gives you:
9.55 grams of SiO2
Answer:
b, e, f
Explanation:
b. oxygen
c. dissolved salts
d. sand
best answer is C. your welcome
Hello, Ginamuhs2!
The oxidizing agent in 2H2S + 3O2 → 2SO2 + 2H2O is the oxygen.
I hope this helps;)