Answer:
Cell culture is one of the most important techniques in cellular and molecular biology since it provides a platform to investigate the biology, biochemistry, physiology (e.g., aging) and metabolism of wild-type cells and diseased cells.
<u>Answer:</u> The percent composition of
in taconite is 37.6 %.
<u>Explanation:</u>
We are given:
Mass of taconite pellets = 1 ton = 907185 g (Conversion factor: 1 ton = 907185 g)
Mass of iron produced = 545 lb = 247212 g (Conversion factor: 1 lb = 453.6 g )
We know that:
Molar mass of iron = 55.85 g/mol
Molar mass of
= 231.53 g/mol
1 mole of
contains 3 moles of iron atom and 4 moles of oxygen atom
(3 × 55.85) = 167.55 g of iron is produced from 231.53 grams of ![Fe_3O_4](https://tex.z-dn.net/?f=Fe_3O_4)
So, 247212 grams of iron will be produced from =
of ![Fe_3O_4](https://tex.z-dn.net/?f=Fe_3O_4)
To calculate the percentage of
in taconite, we use the equation:
![\%\text{ composition of }Fe_3O_4=\frac{\text{Mass of }Fe_3O_4}{\text{Mass of taconite}}\times 100](https://tex.z-dn.net/?f=%5C%25%5Ctext%7B%20composition%20of%20%7DFe_3O_4%3D%5Cfrac%7B%5Ctext%7BMass%20of%20%7DFe_3O_4%7D%7B%5Ctext%7BMass%20of%20taconite%7D%7D%5Ctimes%20100)
Mass of taconite = 907185 g
Mass of
= 341611.43 g
Putting values in above equation, we get:
![\%\text{ composition of }Fe_3O_4=\frac{341611.43g}{907185g}\times 100=37.6\%](https://tex.z-dn.net/?f=%5C%25%5Ctext%7B%20composition%20of%20%7DFe_3O_4%3D%5Cfrac%7B341611.43g%7D%7B907185g%7D%5Ctimes%20100%3D37.6%5C%25)
Hence, the percent composition of
in taconite is 37.6 %.
Provided that the same amount of substance which is produced in the first step is then immediately consumed within the next elementary step of the reaction.
Answer:
D.fusion reactions absorb tremendous amounts of energy.
Answer:
2 ways in which a weather satellite can orbit the earth
Explanation: