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NeX [460]
2 years ago
11

think about the statement "there is no new water on earth" write at least 5 sentences describing how there can be no new water o

n earth, but the earth doesn't run out of water.
Chemistry
1 answer:
Vinil7 [7]2 years ago
8 0
Earth contains huge quantities of water in its oceans, lakes, rivers, the atmosphere, and believe it or not, in the rocks of the inner Earth. Over millions of years, much of this water is recycled between the inner Earth, the oceans and rivers, and the atmosphere. This cycling process means that freshwater is constantly made available to Earth's surface where we all live. Our planet is also very efficient at keeping this water. Water, as a vapor in our atmosphere, could potentially escape into space from Earth. But the water doesn't escape because certain regions of the atmosphere are extremely cold. (At an altitude of 15 kilometers, for example, the temperature of the atmosphere is as low as -60° Celsius!) At this frigid temperature, water forms solid crystals that fall back to Earth's surface.
Many people live faraway from freshwater sources. They need to carry their water home.
While our planet as a whole may never run out of water, it's important to remember that clean freshwater is not always available where and when humans need it. In fact, half of the world's freshwater can be found in only six countries. More than a billion people live without enough safe, clean water.
Also, every drop of water that we use continues through the water cycle. Stuff we put down the drain ends up in someone or something else's water. We can help protect the quality of our planet's freshwater by using it more wisely.
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Potassium hydrogen phthalate, KHC8H5O4, or KHP, is used in many laboratories, including general chemistry laboratories, to stand
Mamont248 [21]

Answer:

Molarity of the sodium hydroxide solution is 0.04687 M.

Explanation:

Amount of potassium hydrogen phthalate = 0.3420 g

Moles of potassium hydrogen phthalate =\frac{0.3420 g}{204.2 g/mol}=0.001675 mol

KHC_8H_4O_4+NaOH\rightarrow NaKC_8H_4O_4+H_2O

According to reaction, 1 mole of potassium hydrogen phthalate reacts with 1 mole of sodium hydroxide, then 0.001675 moles pf potassium hydrogen phthalate will :

\frac{1}{1}\times 0.001675 mol=0.001675 mol of NaOH

Moles of sodium hydroxide = 0.001675 mol

Volume of sodium hydroxide solution =  35.73 mL = 0.03573 L  (1 mL = 0.001 L)

Molarity=\frac{Moles}{Volume (L)}  

Molarity of the sodium hydroxide solution :

=\frac{0.001675 mol}{0.03573 L}=0.04687 M

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