Vinegars can be 5-20% acetic acid solutions and has been used for medicinal purposes for thousands of years. If a person takes 30 mL of vinegar a day and the molarity of the vinegar is 0.84 M, then how many grams of acetic acid (HC2H3O2) will be consumed?

The mass of acetic acid that will be consumed is 1.512 g.

Explanation:

Molarity is defined as the moles of solute present per liter of the solution.

The formula used to calculate the molarity of the solution is:

                       OR

         ......(1)

Given values:

Molarity of acetic acid = 0.84 M

Volume of solution = 30 mL

Molar mass of acetic acid = 60 g/mol

Plugging values in equation 1:

Hence, the mass of acetic acid that will be consumed is 1.512 g.

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 !

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.