2 years ago

Name the following alkane molecule:

Chemistry

1 answer:

Zina [86]2 years ago

5 0

Answer:

Explanation:

its upside down but I'm 99% sure

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The chemical compound, "AB" has a molar mass of 74.548 g/mol.

sladkih [1.3K]

Answer:

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Explanation:

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2 years ago

Why do elements have different<br> properties?

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One hundred million copper atoms are arranged in a line. which is a reasonable estimate for the length of this line?

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A 0.15 m solution of chloroacetic acid has a ph of 1.86. What is the value of ka for this acid?

dem82 [27]

Answer: $1.67\times 10^{-3}$

Explanation:

$ClCH_2COOH\rightarrow ClCH_2COO^-+H^+$

cM 0 0

$c-c\alpha$ $c\alpha$ $c\alpha$

So dissociation constant will be:

$K_a=\frac{(c\alpha)^{2}}{c-c\alpha}$

Given: c = 0.15 M

pH = 1.86

$K_a$ = ?

Putting in the values we get:

Also $pH=-log[H^+]$

$1.86=-log[H^+]$

$[H^+]=0.01$

$[H^+]=c\times \alpha$

$0.01=0.15\times \alpha$

$\alpha=0.06$

As $[H^+]=[ClCH_2COO^-]=0.01$

$K_a=\frac{(0.01)^2}{(0.15-0.15\times 0.06)}$

$K_a=1.67\times 10^{-3]$

Thus the vale of $K_a$ for the acid is $1.67\times 10^{-3}$

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2 years ago

Which of these is equal to 1 mole?

Ivahew [28]

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~Glad to help ^^

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