They allow us to see further and are able to focus on light from distant object. This is done by refracting or reflecting the light using lenses or mirrors.
Answer:
chemists created medicine to help fight leukemia.
Explanation:
Concentration of solution: C=n/v
=> C=5mol/10L = 0.5mol/L
What do u mean P=? What is P?
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: