Answer: 7.41 L of O2
Explanation:
2H2O2(l) ----> 2H2O(l) + O2(g)
22.5 g H2O2 x __1 mol__ x __1 mol O2__ x __22.4 L__ = 7.41 L of O2
34.016 g 2 mol H2O2 1 mol O2
A.the bottom layers are compressed into ice
The volume of 4.92 grams of hydrogen gas at STP is 55 L.
<u>Explanation</u>:
1 mole of an ideal gas will occupy 22.4 L
To find volume, the molar volume of a gas is
22.4 L / 1 mole H
2 → this takes you from moles of H
2 to liters
Now, to find the number of moles present in 4.92 g of hydrogen gas, you can use the gas' molar mass
4.92 g 1 mole H
2 / 2.016
g = 2.44 moles H
2
This sample of hydrogen gas will thus occupy
2.44 moles H
2 22.4 L / 1 mole H
2 = 54.6 L = 55 L.
Hemoglobin is a globular protein, an natural organic polymer. It doesnt have an exact formula, rather it has but good luck writing it down. The empiric formula is C738H1166N812O203S2Fe
It is built up by amino acids with a Fe ion in its core.
Good Luck on your assignmment!!