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dexar [7]
3 years ago
14

PLEASE HELP ONLY ONE QUESTION

Chemistry
2 answers:
Lubov Fominskaja [6]3 years ago
8 0

Answer:

D

Explanation:

lubasha [3.4K]3 years ago
6 0
Now I know that is not the answer you are looking for,but use Photomath. Whatever number or letter is being used and shows the amount,use photomath on each question. It will show you what each one equals and you will find your answer
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Answer:

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How are exothermic and endothermic reactions linked in the process of refining metal ore?
Alex777 [14]
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A chemical reaction in which compounds break up into simpler constituents is a _______ reaction.
klio [65]
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8 0
3 years ago
Acetylsalicylic acid (C9H8O4) is a monoprotic acid commonly known as aspirin. A typical aspirin tablet, however, contains only a
pashok25 [27]

Answer:

6 grains

Explanation:

The equation of the reaction between NaOH and aspirin is;

C9H8O4(aq) + NaOH (aq) ------>C9H7O4Na(aq) + H2O(l)

Amount of NaOH reacted = concentration × volume = 0.1466 M × 14.40/1000 L = 2.11 × 10^-3 moles

Given that aspirin and NaOH react in a mole ratio of 1:1 from the balanced reaction equation above, the number of moles of aspirin reacted is 2.11 × 10^-3 moles

Hence mass of aspirin reacted = 2.11 × 10^-3 moles × 180.2 g/mol = 0.38 g

If 1 grain = 0.0648 g

x grains = 0.38 g

x= 0.38 g/0.0648 g

x= 6 grains

3 0
3 years ago
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