The phrase that describes a characteristic of an Arrhenius base is that Arrhenius base add hydroxide ions to the solution ( answer C)
<u><em>Explanation</em></u>
Arrhenius base is a substance that increases the concentration of OH- in aqueous solution.
The Common Arrhenius base are group 1 and 2 hydroxide such as LiOH, NaOH , Ba(OH)2 among others.
for example NaOH dissociate as follows , NaOH → Na+(aq) + OH- (aq)
I think the right answer is 2.5
Answer: 7.693 L
Explanation:
To calculate the new volume, we use the equation given by Boyle's law. This law states that pressure is directly proportional to the volume of the gas at constant temperature.
The equation given by this law is:
![P_1V_1=P_2V_2](https://tex.z-dn.net/?f=P_1V_1%3DP_2V_2)
where,
are initial pressure and volume.
are final pressure and volume.
We are given:
![P_1=0.63atm\\V_1=12.70L\\P_2=105kPa=1.04atm(1kPa=0.009atm)\\V_2=?](https://tex.z-dn.net/?f=P_1%3D0.63atm%5C%5CV_1%3D12.70L%5C%5CP_2%3D105kPa%3D1.04atm%281kPa%3D0.009atm%29%5C%5CV_2%3D%3F)
Putting values in above equation, we get:
![0.63\times 12.70mL=1.04\times V_2\\\\V_2=7.693L](https://tex.z-dn.net/?f=0.63%5Ctimes%2012.70mL%3D1.04%5Ctimes%20V_2%5C%5C%5C%5CV_2%3D7.693L)
Thus new volume of the gas is 7.693 L