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Aleonysh [2.5K]
3 years ago
14

Which ones better, old youngboy or new youngboy??

Chemistry
2 answers:
Sholpan [36]3 years ago
7 0

old youngboy for sure

tensa zangetsu [6.8K]3 years ago
4 0
Old youngboy is better
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The value for Kw is 1.0 x 10-14 at 298K, but this value is temperature dependent. Given what you know about Kw and acid/base che
Papessa [141]

Answer:

The correct answer is option b.

Explanation:

H_2O\rightleftharpoons H^++OH^-

The ionic product of water : K_w

K_w=[H^+][OH^-]

A pure water has equal concentration of hydrogen ions and hydroxide ions, hence neutral.

K_w=[H^+][H^+]=[H^+]^2

The ionic product of water at 283 K = K_w=0.29\times 10^{-14}

K_w=[H^+]^2

0.29\times 10^{-14}=[H^+]^2

[H^+]=5.385\times 10^{-8} M

The pH of the water at 283 k;

pH=-\log [H^+]

=-\log[5.385\times 10^{-8} M]=7.26

A pure water has equal concentration of hydrogen ions and hydroxide ions,So water will e neutral at this temperature also.

The correct answer is option b.

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Bats are mainly attracted by the color and smell of flowers, the size and shape also play a role in attracting these animals, but the shape is less influential.

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