Answer:
Explanation:
a )
pH = - log[ H⁺]
8.26 = - log[ H⁺]
[ H⁺] = 10⁻⁸°²⁶ mole / l
= 5.49 x 10⁻⁹ moles / l
[ H⁺] [OH⁻] = 10⁻¹⁴
[OH⁻] = 10⁻¹⁴ / 5.49 x 10⁻⁹
= .182 x 10⁻⁵ moles / l
b )
10.25 = - log[ H⁺]
[ H⁺] = 10⁻¹⁰°²⁵ mole / l
= 5.62 x 10⁻¹¹ moles / l
[ H⁺] [OH⁻] = 10⁻¹⁴
[OH⁻] = 10⁻¹⁴ / 5.62 x 10⁻¹¹
= .178 x 10⁻³ moles / l
c )
4.65 = - log[ H⁺]
[ H⁺] = 10⁻⁴°⁶⁵ mole / l
= 2.24 x 10⁻⁵ moles / l
[ H⁺] [OH⁻] = 10⁻¹⁴
[OH⁻] = 10⁻¹⁴ / 2.24 x 10⁻⁵
= .4464 x 10⁻⁹ moles / l
Because the reaction occurs between a metal and non metal
CL=2,8,7
C
Answer:
4.7 atm
Explanation:
From the question given above, the following data were obtained:
Total pressure (P) = 15.3 atm
Pressure of Helium, P(He) = 3.2 atm
Pressure of Oxygen, P(O) = 7.4 atm
Pressure of Argon, P(Ar) =?
The pressure of Argon, P(Ar) in the tank can be obtained as illustrated below:
P = P(He) + P(O) + P(Ar)
15.3 = 3.2 + 7.4 + P(Ar)
15.3 = 10.6 + P(Ar)
Collect like terms
15.3 – 10.6 = P(Ar)
4.7 = P(Ar)
P(Ar) = 4.7 atm
Therefore, the pressure of Argon, P(Ar) in the tank is 4.7 atm
Predict the effect of each of the following on the indicated equilibrium system in terms of which reaction will be favored
H2(g)+Cl2(g)<=>2HCl(g) +184 kJ addition of Cl2 removal of HCl increased pressure decreased temperature removal of H2 decreased pressure addition of a catalyst increased temperature decreased system volume
im sorry i am not sure if this is the answer you are looking for
Answer:
D. Controlling the production of specific proteins.
Explanation:
Genetic material is the main thing that inherited from parents to their offsprings. Gene encodes proteins that will be expressed(produced) when it needed. The protein can be used to build the cell organ, enzyme enzyme that digest food, hormones, and many other things. By inheriting the gene, the offspring will have a similar traits to the parent. The trait can differ a lot for sexual reproduction since only half of each parent gene inherited to the offspring.
