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3 years ago

If the wave speed is 12 m/s and the frequency is 4 hz find the wavelength?

Physics

1 answer:

Kipish [7]3 years ago

4 0

velocity=wavelength(lander) ×frequency

let lander be x

v=12

f=3

12 =x4

x= 12/4

x=3

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Ksp for agbr is 5x10-13. what is the maximum concentration of silver ion that you can have in a 0.1 m solution of nabr?

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Answer : The maximum concentration of silver ion is $5\times 10^{-12}m$

Solution : Given,

$K_{sp}$ for AgBr = $5\times 10^{-13}$

Concentration of NaBr solution = 0.1 m

The equilibrium reaction for NaBr solution is,

$NaBr(aq)\rightleftharpoons Na^++Br^-$

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$[Na^+]=[Br^-]=0.1m$

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$AgBr\rightleftharpoons Ag^++Br^-$

At equilibrium s s

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$K_{sp}=[Ag^+][Br^-]$

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The concentration of $Br^-$ = 0.1 + s

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$5\times 10^{-13}=(s)(0.1+s)$

By rearranging the terms, we get the value of 's'

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