3 years ago

When the ph of the extracellular fluid drops, the kidneys

Chemistry

1 answer:

Ipatiy [6.2K]3 years ago

5 0

The answer is D) Secrete more hydrogen ions and more bicarbonate ions.

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⦁ Find the concentration of H+, OH-, PH and POH of 0.03 M of magnesium hydroxide which ionizes to the extent of only 1 /3 in aqu

lions [1.4K]

Answer:

$pH=12.3\\\\pOH=1.7\\$

$[H^+]=5x10^{-13}M$

$[OH^-]=0.02M$

Explanation:

Hello there!

In this case, according to the given ionization of magnesium hydroxide, it is possible for us to set up the following reaction:

$Mg(OH)_2(s)\rightleftharpoons Mg^{2+}(aq)+2OH^-(aq)$

Thus, since the ionization occurs at an extent of 1/3, we can set up the following relationship:

$\frac{1}{3} =\frac{x}{[Mg(OH)_2]}$

Thus, x for this problem is:

$x=\frac{[Mg(OH)_2]}{3}=\frac{0.03M}{3}\\\\x= 0.01M$

Now, according to an ICE table, we have that:

$[OH^-]=2x=2*0.01M=0.02M$

Therefore, we can calculate the H^+, pH and pOH now:

$[H^+]=\frac{1x10^{-14}}{0.02}=5x10^{-13}M$

$pH=-log(5x10^{-13})=12.3\\\\pOH=14-pH=14-12.3=1.7$

Best regards!

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3 years ago

A certain quantity of matter is called WHAT?

Lerok [7]

A certain quantity of matter is called mass.

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3 years ago

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A bucket contains 15.0 L of seawater. The density of seawater is 1.027 g/mL.

xz_007 [3.2K]

Volume=15L
Density=1.027g/mL=0.1027kg/m^3

$\\ \sf\longmapsto Density=\dfrac{Mass}{Volume}$

$\\ \sf\longmapsto Mass=Density\times Volume$

$\\ \sf\longmapsto Mass=0.1027(15)$

$\\ \sf\longmapsto Mass=0.1925kg$

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How much HCI exists in 275 mL of 0.83 M<br> solution of HCI?<br> Answer in units of mol.

zubka84 [21]

Answer:

0.22825mol HCl

Explanation:

$M=\frac{moles}{liters} \\$

$0.83M HCl = \frac{x(mol)}{0.275L}$

1. Cross multiply!

$\frac{0.83M}{1} =\frac{x}{0.275L}$

$x = 0.22825 mol HCl$

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If a sample of silver is reduced to the smallest possible particle of pure silver, which statement would most accurately describ

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B because the sample is reduced

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