Answer:
53.9%
Explanation:
The equation of the reaction is;
C4H6O3+C7H6O3→C9H8O4+C2H4O2
Number of moles of salicyclic acid reacted = 88.3 g/138.121 g/mol = 0.639 moles
1 mole of salicyclic acid yields 1 mole of aspirin
0.639 moles of salicyclic acid also yields 0.639 moles of asprin
Theoretical yield of asprin = 0.639 moles * 180.158 g/mol
Theoretical yield of asprin = 115.12 g
Percent yield = Actual yield/Theoretical yield * 100/1
Percent yield = 62.0 g/115.12 g * 100
Percent yield = 53.9%
From the given balanced reaction equation:
we can see that every 1 mole of NH4NO2 will produce 1 mole of N2 and when the water also on the gas phase so, every 1 mole of NH4NO2 will produce 3 moles of gas
now we need to get number of moles of NH4NO2 = mass/molar mass
when the mass = 32 g and the molar mass of NH4NO2 = 64 mol/g
∴moles of NH4NO2 = 32 g / 64 mol/g = 0.5 mole
so, the moles that produced of gas will be = 3 * 0.5 = 1.5 moles
now, we can use the ideal gas formula to get V:
PV = nRT
when P is the pressure = 1.5 atm
n is the number of moles = 1.5 moles
R is the ideal gas constant = 0.0821 L*atm/mol*K
and T is the temperature in Kelvin = 525 °C + 273 = 798 K
so by substitution:
1.5 atm * V = 1.5 moles * 0.0821 * 798 K
∴ V = 65.5 L
Explanation:
M+=108 is way of representing molecular formula of a compound indicating simple numbers of each type of atom in a molecule and there is no information about the structure.
Here it given the molecule is hydrocarbon with 8 carbon atom and 12 hydrogen atom. Thus the compound is C8H12.
C8H12 has one ring and two double bonds.
Answer is A have a crystal structure.
3.mp3
7.magnetic powder
9.gramophone