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Delicious77 [7]
3 years ago
5

The deepest ocean trench is the Mariana trench at a depth of?

Chemistry
1 answer:
Anestetic [448]3 years ago
4 0

Answer:

The deepest part of the Mariana Trench is called the Challenger Deep which is 36,070 ft. below sea level.

Have a great day!

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What's the smallest celestial body
finlep [7]
Neutron Stars are considered as the smallest celestial bodies 
6 0
3 years ago
The molar heat of vaporization for methane, CH4, is 8. 53 kJ/mol. How much energy is absorbed when 54. 8 g of methane vaporizes
alexandr402 [8]

Molar heat of vaporization is defined as the heat absorbed by one mole of substance to convert from liquid to gas.

<h3>How do you calculate the heat of vaporization?</h3>

The formula used to calculate the heat of vaporization is:

\rm Q &= n \times \Delta H

Where,

Q = Amount of Heat

n = number of moles of a substance

\Delta H = molar enthalpy of fusion

Now, to calculate the moles of methane:

\rm Moles &= \dfrac{Mass \;of\; methane }{Molar\; Mass\; of \; Methane} &= \dfrac{54.8\;g}{16\;g/mol}

Moles = 3.425 mol

Now, 1 mol of methane absorbs = 8.53 KJ

3.425 mol of methane absorbs = 3.424 \times 8.53 &= 29.1 KJ

Thus, the energy is absorbed till the methane vaporizes at its boiling point is 29.1 KJ.

Learn more about <u>vaporization </u>here:

brainly.com/question/2491083

7 0
2 years ago
BRAINLIESTT
Sauron [17]

Answer:

D. 1.0 x 10-8.43

Explanation:

The pH is an unit of concentration in chemistry used to determine the acidity -or basicity- of a particular solution. Is used in quality control to determine the security of a product for consumers.

The equation is:

pH = -log [H₃O⁺]

As pH = 8.43:

8.43 = -log [H₃O⁺]

10^-8.43 = [H₃O⁺]

1.0x10 -8.43 = [H₃O⁺]

Right option is:

<h3>D. 1.0 x 10-8.43 </h3>
3 0
3 years ago
Describe how this instrument works.<br><br> Operation:
guapka [62]

Answer:

Microscope

Explanation:

6 0
3 years ago
Read 2 more answers
Round to 4 significant figures 4,567,986
kipiarov [429]
4,568,000
there is the rounded of 4 figures

7 0
3 years ago
Read 2 more answers
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