Answer:
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Explanation:
Answer:
the mass of one mole of an element, or Avogadro's number (6.02 x 1023) of atoms, is equal to its atomic mass in grams. In other words, 1 amu = 1 gram/mole. So if the mass of one hydrogen atom is 1 amu, the mass of one mole of hydrogen is 1 gram.
Explanation:
<u>Answer: </u>The volume occupied by
at STP is 0.56 L.
<u>Explanation:</u>
To calculate the number of moles, we use the equation:

We are given:
Given mass of oxygen = 0.80 g
Molar mass of oxygen = 32 g/mol
Putting values in above equation, we get:

<u>At STP:</u>
1 mole of a gas occupies 22.4 L of volume.
So, 0.025 moles of oxygen gas will occupy =
of volume.
Hence, the volume occupied by
at STP is 0.56 L.