3 years ago

Solar panels are used to harness sunlight energy. How could solar panels be used in a house?

Chemistry

1 answer:

Oduvanchick [21]3 years ago

3 0

Answer:

D to absorbe energy from the sun's radiation to heat wats

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A student mixes baking soda and vinegar in a glass.Do you think any new substances are being created in this mixture? If so, how

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Yes, it underwent a chemical change

Explanation:

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2 years ago

What is a possible set of quantum numbers for the unpaired electron in the following electron configuration: [Ar] 3d10 4s2 4p5?

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Answer:E

Explanation:

The electron is expected to be in any of the 4p orbitals. For the 4p orbitals

n=4

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3 years ago

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Andreyy89

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To prepare an acetic acid/acetate buffer, a technician mixes 30.6 mL of 0.0880 acetic acid and 21.6 mL of 0.110 sodium acetate i

enyata [817]

Answer: There are 0.00269 moles of acetic acid in buffer.

Explanation:

To calculate the number of moles for given molarity, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}\times 1000}{\text{Volume of solution in ml}}$ .....(1)

Molarity of acetic acid solution = 0.0880 M

Volume of solution = 30.6 mL

Putting values in equation 1, we get:

$0.0880M=\frac{\text{Moles of acetic acid}\times 1000}{30.6ml}\\\\\text{Moles of acetic acid}=\frac{0.0880\times 30.6}{1000}=0.00269mol$

Thus there are 0.00269 moles of acetic acid in buffer.

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COPERNICUS WHO WAS IT

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