Question

ASAP please thanks

Question 22 2 pts How many molecules of glycerol (C3H803) are present in a 0.5 M glycerol solution? o 1x 1023 O 0.5x6.02 x 1023 92/2 x 6.02 x 1023 0.5x6.02/92 x 1023 6.02 x 1023

Answer 1

Ans-22- 1 Mole of any substance have 6.023×10²³ atoms or molecules, this is Avagadro number. So 0.5 M will have 0.5×6.023×10²³ atoms or molecule.

So option B is correct.

Ans-19- if pH is decreasing means H⁺ is increasing that is possible only when H₂CO₃ is broken down into HCO₃^- and H⁺.

Hence the concentration of H₂CO₃^- will decrease while the concentration of HCO₃^- will increase.

Option A is correct

Ans-20- the membrane bound cell components are organelles that carry out specific functions.

Option C is correct.