Answer: The bond of molecule AB is then best described as a covalent bond
Explanation: The bond molecule AB is covalent because the difference in their electronegativity is not very big
Answer:
24.66%
Explanation:
To find the percent of water (H2O) in the following compound: Zn3(PO4)2. 7H2O
The atomic mass of the elements are as follows:
Zn = 65g/mol
P = 31g/mol
O = 16g/mol
H = 1g/mol
Hence, molar mass of the compound is as follows:
65(3) + {31 + 16(4)} 2 + 7{1(2) + 16}
195 + 95(2) + 7(18)
195 + 190 + 126
511g/mol
Molar mass of 7H2O
= 7(18)
= 126g/mol
Hence, the percent of H2O in the compound is:
Molar Mass of 7H2O/molar mass of compound × 100
= 126/511 × 100
= 0.2466 × 100
= 24.66%
Is there options? If not, then your answer is going to be cells!
This reaction between a carboxylic acid and an alcohol in the presence of an acidic catalyst is called the Fischer Esterification. The overall reaction is
CH₃CH₂OH + CH₃C=OOH ⇒ CH₃CH₂C=OOCH₃ + H₂O
If you see closely, the change that happened here is that the CH₃COO- in the acetic acid is transferred to the ethanol by forming a carbonyl group, C=O. The remaining H⁺ in the acetic acid reacts with the remaining OH⁻ of the ethanol to form H₂O. But there are actually 5 steps that happened to get to the final products. The steps are shown in the picture. I actually got that online as a reference.
As a summary, the C in the acetic acid is protonated by the acid catalyst. So as a result, it becomes an attractive electrophile. It is more reactive so it will undergo substitution by the alcohol. The protonated H⁺ is transferred to one of the OH⁻ groups. Next, the water is replaced or removed to yield the deprotonated ester that is ethyl acetate.