There’s no choices to pick from
Answer:
1.087 mi/min
Explanation:
Given data:
Speed of car in Km/h = 105
Speed of car in miles/min = ?
Solution:
It is given that one miles = 1.61 Km
while it is known that one hour = 60 minutes
Thus in order to convert the km/h into mi/min we will divide the given value by 96.561.
105 / 96.561
1.087 mi/min
Answer:
2.1 atm
Explanation:
We are given the following variables to work with:
Initial pressure (P1): 2.5 atm
Initial temperature (T1): 320 K
Final temperature (T2): 273 K
Constant volume: 7.0 L
We are asked to find the final pressure (P2). Since volume is constant, we want to choose a gas law equation that relates initial pressure and temperature to final pressure and temperature. Gay-Lussac's law does this:
We can rearrange the law algebraically to solve for 
.
Substitute your known variables and solve:
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Answer:
CH3COOH will be the acid, because it is the stronger acid.
Explanation:
When an acid deprotonates in a solution, an equilibrium reaction will occur between the protonated form and the deprotonated form (conjugate base) of it. The equilibrium is characterized by the value of Ka, the equilibrium constant, which is the multiplication of the concentration of the products divided by the concentration of the acid.
As higher is the value of Ka, more acid is deprotonated, and stronger will be the acid. The value of pKa = -logKa, and so, as higher is the Ka, as low is the pKa. Thus, strong acids have low pKa values.
In the reaction of CH3COOH and H2O, the first one has a low value of pKa, so it is a strong acid. The water is a substance that can work as an acid or as a base, and, because of the other substance is a strong acid, it works as a base.
