<u>Conversion Factors:</u>
1.61 km = 1 mile
60 sec = 1 min
60 min = 1 hour
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Use dimensional analysis to solve.
×
×
×
×
= 36 miles/hour
If done properly, you should be left with the units <em>miles/hour</em>
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To use the right hand rule, you should point your thumb in the same
1 answer:
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Answer:
of acetic anhydride is needed
Explanation:
According to balanced equation, 1 mol of salicylic acid completely reacts with 1 mol of acetic anhydride
Number of moles = (mass)/(molar mass)
Molar mass of acetic anhydride = 102.09 g/mol
Molar mass of salicylic acid = 138.121 g/mol
So, of salicylic acid =
of salicylic acid
Hence, of salicylic acid reacts completely with
of acetic anhydride.
So, mass of acetic anhydride needed = =