Wilma dissolves 10,00 grams of glucose with water and the final volume of solute and solvent is 66.67 ml. what is the concentration of glucose in her solution? a. 10% (m/v) o b.15.% (mv) o c.25 % (m/v) d. 30.% (m/v) e. none of the above.

b.15 % ( m / v )

Explanation:

The percent concentration ( m / v ) =

mass of the solute / volume of the solution * 100

From the question , the mass of glucose = 10.00 g

The total volume of the solution = 66.67 mL

using the above formula ,and putting the respective values , the percent concentration ( m / v ) is calculated as -

The percent concentration ( m / v ) = 10.00 g  / 66.67 mL * 100 = 15 (m/v)%

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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