Answer: 228.8 gExplanation:1) Chemical equation, balanced: given
2) mole ratios
2 mol H2O2 : 2 mol H2O :1 mol O2
3) proportion with the unknown quantity of O2:
2 mol H2O2 14.3 mol H2O2
------------------- = -----------------------
1mol O2 x
4) Solve for x:
x = 14.3 mol H2O2 * 1 mol O2 / 2 mol H2O2 = 7.15 mol O2
5) Convert 7.15 mol O2 to grams
molar mass = mass in grams / number of moles
=> mass in grams = number of moles * molar mass
molar mass of O2 = 2 * 16.00 g/mol = 32.00 g/mol
mass in grams O2 = 7.15 moles * 32.00 g / mol = 228.8 g
Answer: 228.8 g
Please be rightly informed that the formula for km/day is 1 kilometer per hour (kph) = 24 kilometer per day (km/day).
<h3>Fundamental quantities</h3>
These are quantities which forms the basic unit of measurement. The units of fundamental quantities are called fundamental units.
The three major fundamental quantities are:
Other fundamental quantities are:
- Temperature
- Amount of substance
- Magnetic flux
- Electric current
So therefore, the formula for km/day is 1 kilometer per hour (kph) = 24 kilometer per day (km/day).
Learn more about fundamental quantities:
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It’s either not testable since hypothesis need to be able to be tested or it could be not likely tho second option it has been poorly written
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