Answer:
% yield = 62.21 %
Explanation:
- C2H4(g) + H2O(l) → C2H6O(l)
∴ mass C2H4(g) = 4.6 g
∴ mass C2H6O(l) = 4.7 g
- % yield = ((real yield)/(theoretical yield))×100
theretical yield:
∴ molar mass C2H4(g) = 28.05 g/mol
⇒ mol C2H4(g) = (4.6 g)*(mol/28.05 g) = 0.164 mol
⇒ mol C2H6O(l) = (0.164 mol C2H4)*(mol C2H6O(l)/molC2H4(g))
⇒ mol C2H6O(l) = 0.164 mol
∴ molar mass C2H6O(l) = 46.07 g/mol
⇒ mass C2H6O(l) = (0.164 mol)*(46.07 g/mol) = 7.55 g
⇒ theoretical yield = 7.55 g
⇒ % yield = (4.7 g)/(7.55 g))*100
⇒ % yield = 62.21 %
False
Phase changes are physical changes and can be easily reverted by adjusting pressure or temperature.
Answer:
One positve charge
Explanation:
A neural atom is one that has equal number of protons and electrons. The protons are the positively charged subatomic particles in an atom. The electrons are the negatively charged particles in an atom.
For an atom to be charged during bond formation, it must lose or gain electrons. The number of electrons lost or gained conditions the charge on the ions it forms.
If in a neutral atom, it loses an electron, we see that the number of protons will now be more than the number of electrons by the 1 electron it lost. The charge will then be +1.
If a neutral atom gains an electron, the number of electrons will be more than that of the protons by 1. The charge will then be -1.
Answer:
the answer is: 1'699.98 ok i hope i have helped maybe
Answer:
Water is a chemical compound and polar molecule, which is liquid at standard temperature and pressure. It has the chemical formula H2O, meaning that one molecule of water is composed of two hydrogen atoms and one oxygen atom.
Explanation:
