Answer:
Volcanologists can predict eruptions if they have a thorough understanding of a volcano's eruptive history, if they can install the proper instrumentation on a volcano well in advance of an eruption, and if they can continuously monitor and adequately interpret data coming from that equipment.
Explanation:
A solution with hydroxide ion concentration of 4.15 x10^-6 m is basic and has a hydrogen ion concentration of 2.41 x10^-9 M
we well know thaat (H^+) (OH^-) = 1 x10^-14
by making H^+ concentration the subject of the formula
H^+ = 1 x10^-14/OH^-
H^+= 1 x10^-14/4.15 x10^-6 = 2.41 x10^-9 M
the solution is basic since OH^- ion is for basic solution
Answer : The correct option is, (b)
Explanation :
According to the Henry's law:
where,
= molar concentration of = ?
= partial pressure of = 1.0 atm
= Henry's law constant =
Now put all the given values in the above formula, we get:
Therefore, the molar concentration of oxygen in water is,
Answer:
c: Yes, if each sample contains 6.02 x 1023 atoms.
Explanation:
got it right on the test <3