<h3>
Answer:</h3>
69.918 g
<h3>
Explanation:</h3>
<u>We are given;</u>
- Mass of iron oxide as 100 g
We are supposed to determine the maximum theoretical yield of Iron from the blast furnace;
- The equation for the reaction in the blast furnace that extracts Iron from iron oxide is given by;
Fe₂O₃ + 3CO → 2Fe + 3CO₂
- We can first determine moles of Iron oxide;
Moles = Mass ÷ Molar mass
Molar mass of Fe₂O₃ = 159.69 g/mol
Therefore;
Moles of Fe₂O₃ = 100 g ÷ 159.69 g/mol
= 0.626 moles
- Then we determine moles of Iron produced
From the equation;
1 mole of Fe₂O₃ reacts to produce 2 moles of Fe
Therefore;
Moles of Fe = Moles of Fe₂O₃ × 2
= 0.626 moles × 2
= 1.252 moles
- Maximum theoretical mass of Iron that can be obtained
Mass = Moles × molar mass
Molar mass of Fe = 55.845 g/mol
Therefore;
Mass of Fe = 1.252 moles × 55.845 g/mol
= 69.918 g
Therefore, the maximum theoretical mass of Iron metal obtained is 69.918 g
Hurricanes cause large waves that hit the coast with considerable force. How can these waves negatively impact an ecosystem near the shore?
A.
by causing water sources near the coast to become less salty
B.
by causing significant erosion of the shore
C.
by causing more oxygen and carbon dioxide to dissolve in the water
D.
by causing tides to occur at unusual times
It’s B
Answer:
[NaOCl] = 0.1M (option c.)
Explanation:
We determine the reaction:
NaOCl(aq) + HCl (aq) →NaOH (aq) + Cl₂(g)
Ratio is 1:1, so if I produce 0.01 moles of chlorine I used 0.01 mol of hypochlorite.
Our volume of solution by water (solvent) and NaOCl (solute) was 100 mL, so in order to determine molarity we divide moles by volume (L)
100 mL . 1L/1000mL = 0.1L
Molarity → 0.01 mol /0.1L = 0.1M
Answer:
Iodine
Explanation:
Iodine is in group 17 on the periodic table (first picture attached). The second picture shows you in the top left-hand corner of Iodine's little square, there is the number 53. This is the atomic number, it is also the number of protons and electrons in an element.
Hope this helped :)
Texas has a capital H over it. In weather, a capital red H is an area of high pressure. High pressure areas have sunny, warm weather.
An area with a blue L over it means an area of low pressure and that means stormy weather.
Good luck :) !