3 years ago

How many molecules are in 15 grams of Oxygen gas?

1 answer:

8 0

Number of grams in 1 mole = 6.23 * 10^23
Now, in 15, it would be: 15 / 6.23 * 10^23 = 2.5 * 10^-24 moles (approx.)

In short, Your Answer would be Option C

Hope this helps!

You might be interested in

Lenses are made to have different focal points. What two properties of a lens

Novay_Z [31]

The correct answer is letter C

3 0

3 years ago

What element has 4 valence electrons and 5 electron shells?

marta [7]

Answer: Tin (Sn)

Explanation: The electron configuration for tin (Sn) is shown in the picture. It's last electrons are:

5s^2 4d^10 5p^2

The valence electrons are in the 5th electron shell and include 2 each in the 5s and 5p orbitals.

8 0

3 years ago

Two students are trying to figure out the Calories per gram of potato chips. They burn part of the potato chip and feel the heat

kakasveta [241]

Answer:

Explanation:

6 0

3 years ago

Which best describes the particles in a gas when the temperature rises from 23 °C to 46 °C?

mariarad [96]

I think the correct answer is b. Temperature is proportional to the average kinetic energy so when temperarure rises so will the average kinetic energy. I hope this helps. Let me know if anything is unclear.

5 0

3 years ago

HURRY DONT HAVE MUCH TIME LEFT. Vegetarians do not eat animal products but rather derive their protein from plant sources. Which

Leokris [45]

Answer:

b12 and d3

Explanation:

5 0

3 years ago