Amolecular biologist measures the mass of cofactor a in an average yeast cell. the mass is 96.15 pg . what is the total mass in micrograms of cofactor a in a yeast colony containing 105 cells? write your answer as a decimal.

Given data:

Mass of cofactor A in an average yeast cell = 96.15 pg

Now:

1 picogram (pg) = 1* g

1 microgram (ug) = 1* g

Therefore, 1 pg = 1*ug

Mass of cofactor A in one yeast cell = 96.15 * micro gram

Number of cells in the yeast colony = 105

Therefore, the total mass of cofactor A is given as:

Number of cells * mass of cofactor A per cell

= 105 cells * 96.15 * micro grams/cell = 1.009 * micro grams

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !