Some of the similarities between weather and climate include how both refer to temperature and how they are not always the same everywhere. In addition, the weather and climate intersect in various ways, for example the climate dictates the weather in various locations.
Mass of iron(III)oxide, Fe2O3 sample = 1.143*10^2 g
Molar mass of Fe2O3 = 159.69 g/mole
i.e. 1 mole of Fe2O3 weighs 159.69 g
Based on stoichiometry:
1 mole of Fe2O3 has 2 moles of Fe
Atomic mass of Fe = 55.85 g/mole
Therefore we can write:
159.69 g of Fe2O3 is composed of 2*55.85 g of Fe
Thus, amount of Fe present in 1.143*10^2 g sample of Fe2O3 is
= 1.143*10^2 * 2* 55.85/159.69
= 7.995*10^-1 g
<u>Answer:</u>
<em>The concentration solution by percent in mass is 8.28%</em>
<u>Explanation:</u>
Molarity is moles of solute present in 1L of its solution .
Hence the formula is
Let us convert the numerator and the denominator into mass in g
Numerator :
Denominator :
The formula to find mass percentage is
=8.28% (Answer)
The answer is A. <span>why a balloon deflates when the air around it cools </span>
Answer:
The pH value is 2.0, which is less than 3.8, therefore bromcresol green will be of yellow color.
