p
K
a
=
5.4
pH
=
3.7
Explanation:
p
K
a
is simply
−
log
10
(
K
a
)
. It is a constant at any temperature and does not depend on the molarity of the solution.
p
K
a
=
−
log
10
(
K
a
)
=
−
log
10
(
4.0
×
10
−
6
)
=
5.4Explanation:
Answer:
93 moles
Explanation:
1 mole of CaCO_3 will have 6.022×10^(23) molecules of CaCO_3 .
Given number of molecules of Calcium carbonate = 5.60 x 10^(25)
Therefore, number of moles n =
n= 93 moles
I think the answer is A but I’m not completely sure
Answer:
D) Van der Waals
Explanation:
Given that the geometry is linear, one finds that the C = O bonds cancel out any polar effects due to the linear geometry ( O = C = O )and gives the molecule a net dipole of zero. Interactions are therefore dependent upon dispersion forces that are classified as Van der Waal Forces or London Forces.