Answer: The molarity of the initial concentrated solution is 0.450 M
Explanation:
According to the dilution law,

where,
= Molarity of concentrated KOH solution = ?
= volume of concentrated KOH solution = 175 ml
= concentration of diluted KOH solution= 0.315 M
= volume of diluted KOH solution= 250 ml
Putting in the values, we get:


Thus the molarity of the initial concentrated solution is 0.450 M
Answer:
probably
Explanation:
based on¯what I know? there aren't many major changes but you can get much taller for a certain period of time.
D because these are the biggest particles, and are therefore, the most dense.
Answer:
The number of mole is 0.04167mole
Explanation:
To convert gram to mole, we need to calculate the molecular weight of the compound
C6H12O6
C - 12
H - 1
O - 16
Molecular weight = 6 * 12 + 1 *12 + 6 * 16
= 72 + 12 + 96
= 180g/mol
To covert gram to mole
Therefore,
= 7.50g/ 180g/mol
= 0.04167 mole of glucose