b. mmol NaOH Initial concentration of NaOH
c. mL H2O Initial concentration of HCl
Answer:
The following parameters:
Explanation:
The options have been incorrectly arranged in the question statement given here. The three conditions mentioned above are what would be observed to remain the same when this experiment is carried out.
Answer:
See explanation
Explanation:
Hello there!
In this case, since the the concentrations are not given, and not even the Ksp, we can solve this problem by setting up the chemical equation, the equilibrium constant expression and the ICE table only:
Next, the equilibrium expression according to the produced aqueous species as the solid silver chloride is not involved in there:
And therefore, the ICE table, in which x stands for the molar solubility of the silver chloride:
I - 0 0
C - +x +x
E - x x
Which leads to the following modified equilibrium expression:
Unfortunately, values were not given, and they cannot be arbitrarily assigned or assumed.
Regards!
Answer:
The rain falling in New England is 2.29 times more acidic than the one in the American Midwest.
Explanation:
The acidity of a solution depends on the concentration of H⁺ ions ([H⁺]). We can calculate this concentration from the pH using the following expression.
pH = -log ([H⁺])
American Midwest
pH = -log ([H⁺])
5.02 = -log ([H⁺])
[H⁺] = antilog (-5.02) = 9.55 × 10⁻⁶ M
New England
pH = -log ([H⁺])
4.66 = -log ([H⁺])
[H⁺] = antilog (-4.66) = 2.19 × 10⁻⁵ M
The ratio of concentrations is:
The rain falling in New England is 2.29 times more acidic than the one in the American Midwest.
The change in the acidity of the rain falling in New England is mathematically given as
r=2.29
Question Parameter(s):
American midwest pH of 5.02
New England pH of 4.66
Generally, the equation for the pH is mathematically given as
pH = -log ([H⁺])
Therefore American midwest
pH = -log ([H⁺])
5.02 = -log ([H⁺])
[H⁺] = antilog (-5.02) = 9.55 × 10⁻⁶ M
and New england
pH = -log ([H⁺])
4.66 = -log ([H⁺])
[H⁺] = antilog (-4.66) = 2.19 × 10⁻⁵ M
In conclusion, the concentration ratio is
r=2.29
Read more about pH value
a.carbon?
Answer:
The new volume of the balloon is 46.1 L
Explanation:
Step 1: Data given
Initial volume of the balloon = 27.3 L
Initial pressure in the balloon = 738 mmHg = 0.97105 atm
Initial temperature in the balloon = 26.9 °C = 300.05 K
The pressure decreases to 375 mmHg = 0.493421 atm
The temperature lowers to -15.6 °C = 257.55 K
Step 2: Calculate the volume
P1*V1 / T1 = P2 *V2 / T2
⇒with P1 = the Initial pressure = 738 mmHg = 0.97105 atm
⇒with V1 = Initial volume of the balloon = 27.3 L
⇒with T1 = Initial temperature in the balloon = 26.9 °C = 300.05 K
⇒with P2 = the decreased pressure = 0.493421 atm
⇒with V2 = the new volume = TO BE DETERMINED
⇒with T2 = the lowered temperature = 257.55 K
0.97105 * 27.3 / 300.05 = 0.493421*V2 / 257.55
V2 = 46.1 L
The new volume of the balloon is 46.1 L