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Svet_ta [14]
3 years ago
15

A small amount of acid is added to a buffer solution, the ph of the solution will

Chemistry
2 answers:
Alik [6]3 years ago
7 0
Increase due to rising ph
Anastasy [175]3 years ago
3 0

A small amount of acid is added to a buffer solution, the ph of the solution will

A. increase

B. decrease  

C. stay about the same

D. become neutral


correct option is <u>option C </u>


Buffer is a solution which can resist the change in pH with small addition of acid or base.

Hence a small amount of acid when added to a buffer solution will not change its pH,or its <u>pH remains the same.</u>

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The final temperature in Celsius of the metal block is 49°C.

<h3>How to find the number of moles ?</h3>

Moles water = \frac{\text{Given mass}}{\text{Molar Mass}}

                     = \frac{0.48\ g}{18\ \text{g/mol}}

                     = 0.0266 moles  

                   

Heat lost by water = 0.0266 mol x 44.0 kJ/mol

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Heat lost = Heat gained

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1170 + 1242 = 49.7 T  

T = 48.5°C (49°C at two significant figures)

Thus from the above conclusion we can say that The final temperature in Celsius of the metal block is 49°C.

Learn more about the Moles here: brainly.com/question/15356425

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