4 years ago

Which phrase best describes the bond in H2

Chemistry

1 answer:

gregori [183]4 years ago

8 0

Answer:

It is a covalent bonding

Explanation:

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What is [h3o ] in a solution of 0.25 m ch3co2h and 0.030 m nach3co2?

Brilliant_brown [7]

Hello!

To determine [H₃O⁺], we need to apply the Henderson-Hasselback equation, since this is a case of an acid and its conjugate base:

$pH=pKa+log( \frac{[A^{-}] }{[HA]} )$

$pH=4,76+log( \frac{0,030M}{0,25M} ) \\ \\ pH=3,84$

Now, we use the definition of pH and clear [H₃O⁺] from there:

$pH=-log[H_3O^{+}]$

$[H_3O^{+}] = 10^{-pH} =10^{-3,84}=0,00014 M$

So, the [H₃O⁺] concentration is 0,00014 M

Have a nice day!

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3 years ago

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Alexandra [31]

Answer:

40% of registered voters voted

Explanation:

3200 out of 8000,

or :

3200 / 8000

= 0.4

0.4 x 100 = 40

40% of registered voters voted

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4 years ago

The ph3 molecule is polar. does this offer experimental proof that the molecule cannot be planar? explain.

Alex

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4 years ago