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igomit [66]
2 years ago
14

“Enter the conjugate acids of no2- and no3-“

Chemistry
1 answer:
Rainbow [258]2 years ago
4 0

Answer:

nitrit,nitrat

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The ph of a solution containing 0.818 M acetic acid<br> (ka1.76*10-5) ans 0.172 M sodium acetate is?
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Explanation:

It is known that the relation between pH and pK_{a} is as follows.

              pH = pK_{a} + log \frac{[salt]}{[acid]}

and,     pK_{a} = -log K_{a}

Hence, first we will calculate the value of pK_{a} as follows.

                   pK_{a} = -log K_{a}

                               = -log (1.76 \times 10^{-5}

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Now, we will calculate the value of pH as follows.

              pH = pK_{a} + log \frac{[\text{sodium acetate}]}{\text{acetic acid}}

                    = 4.75 + log \frac{0.172}{0.818}      

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                    = 4.07

Therefore, we can conclude that the pH of given solution is 4.07.

5 0
3 years ago
What is boiling point
klasskru [66]

Answer:

The temperature at which the given substance starts to boil is called boiling point.

I HOPE IT HELPED U

STAY SAFE STAY HAPPY

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diamond has a density of 3.26 g/cm3. what is the mass of a diamond that has a volume of 0.313 cm cubed
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3.26 = m / 0.313

m = 3.26 x 0.313

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hope this helps!
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