I think it is C (answer at your own risk im not a professional)
Answer:
The density of solution is 1.283 g/mL.
Explanation:
Molarity of the KOH before dilution = 
Volume of the solution before dilution = 
Molarity of the KOH after dilution = 
Volume of the solution after dilution = 




(1 mL = 0.001 L)


Mass of 0.2076 moles of KOH:
0.2076 mol × 56 g/mol = 11.6256 g
Mass of KOH is solution = 11.6265 g
Mass of the solution = M
Mass percentage of solution = 30.0% of KOH

M = 38.755 g
Density of the solution , d= 

The density of solution is 1.283 g/mL.
Answer: The substance is neutral
Explanation:
If you place red litmus paper into a basic substance, it turn's blue. When it comes in contact with an acidic or neutral substance, it doesn't change colour it remains red.
Blue litmus paper in acid turns red when placed in a basic or neutral solution it remains blue. From this it can be concluded that the solution is neutral.
Okay thanks for the update I will give you a call when you get home thanks
Answer:
The equation for percent composition is (mass of element/molecular mass) x 100.
please mark me as a brainlist