Answer:
How many atoms of each element are there in one molecule of H3PO4? there are 8 atoms in total in H3PO4. there are 3 atoms of hydrogen, 1 atom of phosphorous and 4 atoms of oxygen in the one molecule of this compound, which is called hydrogen phosphate.
The over all order of the reaction with the rate law of rate=k[A][B] is 2 since the exponent for [A] is 1 and the exponent for [B] is 1 and 1+1=2.
for example the order for the rate law rate=[A]²[B] is 3 since 2+1=3 and the order for a rate law of rate=[A]²[B]³ the order would be 5 since 2+3=5.
I hope this helps. Let me know if anything is unclear.
Answer:
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Answer:
26.7 kJ/mol
Explanation:
- Heat required = Heat of vaporization * moles
We're given the Heat of vaporization, so now we need to <u>find the moles of acetone</u>, to do that we'll use the <em>given mass</em>:
- Molar mass of acetone (C₃H₆O) = 12*3 + 6*1 + 16 = 58 g/mol
- 50.0 g acetone ÷ 58 g/mol = 0.862 mol acetone
Now we <u>calculate the heat required</u>:
- Heat required = 31.0 kJ/mol * 0.862 mol
- Heat required = 26.7 kJ/mol
