Answer:
Incomplete exercise: isolated 0.169 g of eugenol from 5.09 g of cloves
The answer is:
The theoretical mass of eugenol is 0.8653 g and the percent recovery is 19.53%
Explanation:
The theoritical mass is equal to:
The percent recovery is:
%
Earlier species thanks to evolution. hope this helped!
Here we have to get the amount of heat will generate by 510.0 kg of sodium sulfate decahydrate at night assuming complete reaction and 100% efficiency of heat transfer.
510.0 kg of sodium sulfate decahydrate will produce 5.603 × 10⁵ kJ of heat energy.
The molecular weight of sodium sulfate decahydrate (H₂₀Na₂O₁₄S) 322.186 g/mol.
Thus 510.0 kg of H₂₀Na₂O₁₄S is equivalent to = 1582.936 mol of H₂₀Na₂O₁₄S.
Now per mole of H₂₀Na₂O₁₄S will transfer 354 kJ heat.
Thus 1582.936 mol will transfer 1582.936 × 354 kJ = 5.603×10⁵ kJ of heat.
Henceforth, 510.0 kg of sodium sulfate decahydrate will produce 5.603 × 10⁵ kJ of heat energy.
Answer:
5. The excited players celebrated because they won the game. 6. Everyone at the birthday party ate the delicious birthday cake is the question
Explanation:
When
q = m*Cp*ΔT
when q is Heat energy in Joules
and m is the mass of the substance in Kg
and Cp is the specific heat (J/Kg.K)
and Δ T is the change in temperature in Kelvin
so, by rearranging the formula we can get the specific heat Cp from:
∴Cp = q / m*ΔT