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Marizza181 [45]
2 years ago
12

If you have 50 grams of water, how many moles would that be?*

Chemistry
1 answer:
ASHA 777 [7]2 years ago
5 0

Answer:

2.77 or 3 moles of water

Explanation:

Water or H2O has a Molar Mass of about 18.02 g/mol. n= 2.77 moles of water in a 50 gram sample. Water or H2O has a Molar Mass of about 18.02 g/mol

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nalin [4]

Answer:

Green, Blue, Indigo, Violet

Explanation:

According to Einstein's equation of photoelectric effect, the kinetic energy of emitted photoelectron is the difference between the energy of the incident photon and the work function of the metal. The work function of the metal referee to the minimum energy that must be supplied in order to eject an electron from a metal surface. The energy of the incident photon must exceed the work function of the metal.

When we look at the electromagnetic spectrum, only the selected colours have frequency above the threshold frequency as shown by the image attached below.

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3 years ago
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How much energy does an X-ray with an 8 nm (8 x 10-9 m) wavelength have?
Vlada [557]

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Explanation:

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3 years ago
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Explanation:

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