Propane is C3H8
So Molar mass propane = 3*12 + 8*1 = 44 <span>
No. of moles of propane = 167/44 = 3.795 moles</span>
From the stoichiometry: <span>
No. of moles of hydrogen = 3.795 moles * (8 moles
hydrogen / 1 mole propane) = 30.36 moles
Using Avogadros number, 1 mole of any substance
contains 6.022 x 10^23 atoms, therefore:
<span>No. of hydrogen atoms = 30.36 * 6.022 x 10^23 =
1.828 x 10^25 atoms</span></span>
Answer: 3.0 kJ × 1 mol/40.65 kJ× 18.02 g/mol × 1 mL/1 g= 1.3 mL
Well, if the earth slowly stopped spinning, our ocean would travel to the north, forming a new continent, and drowning most of the ones today.
Question
Give a definition of mixture?
Why air is called a mixture?
Answer:
mixture - substance made by combining two more different materials in such a way that no chemical reaction occurs.
Air is a mixture because it is composed of gases like inert gases, carbon dioxide, oxygen, nitrogen an so on. Also dust particles are present in the atmosphere so air is a mixture .
Explanation:
