Answer:
Hcl
Explanation:
Arrhenius acid - produce H+
Arrhenius base - produce oh -
we can see here in the option B give us H+ which is arrhenius acid
Answer: The volume of the gas is 0.84 Liters
Explanation:
According to ideal gas equation:
P = pressure of gas = 1530 mm Hg = 2.01 atm (760mmHg=1atm)
V = Volume of gas = ?
n = number of moles = 0.275
R = gas constant =
T =temperature =
Thus the volume of the gas is 0.84 Liters
Answer:
garreth is the fasstis runner
luigi is the 2 fasts runner
elisa is the 3 fastes runner
Explanation:
When dT = Kf * molality * i
= Kf*m*i
and when molality = (no of moles of solute) / Kg of solvent
= 2.5g /250g x 1 mol /85 g x1000g/kg
=0.1176 molal
and Kf for water = - 1.86 and dT = -0.255
by substitution
0.255 = 1.86* 0.1176 * i
∴ i = 1.166
when the degree of dissociation formula is: when n=2 and i = 1.166
a= i-1/n-1 = (1.166-1)/(2-1) = 0.359 by substitution by a and c(molality) in K formula
∴K = Ca^2/(1-a)
= (0.1176 * 0.359)^2 / (1-0.359)
= 2.8x10^-3
