Answer:
there'd be 2 electrons
Explanation:
number of electrons= number of protons
Answer: False
Explanation:
pH is defined as the negative logarithm of hydronium ion concentration present in the solution.
![pH=-log[H_3O^+]](https://tex.z-dn.net/?f=pH%3D-log%5BH_3O%5E%2B%5D)
If the solution has low hydronium ion concentration than hydroxide ion concentration, the pH will be high and the solution will be basic. The pH range of basic solution is 7.1 to 14
If the solution has high hydronium ion concentration than hydroxide ion concentration, the pH will be low and the solution will be acidic. The pH range of acidic solution is 0 to 6.9.
The solution having pH equal to 7 is termed as neutral solution.
Thus the given statement is False.
Answer:
it looks smaller for sure ^_^
The working equation for this is:
Tbp,soln - Tbp,water = i*Kb*m
where
Kb for water is 0.512 °C/molal
m is the molality (mol solute/kg solvent)
i is the van't hoff factor which represents the number of ions dissociated for strong electrolytes
Tbp,water is the boiling point of water which is 100°C
1. <span>1.50 moles of lioh (strong electrolyte) and 3.00 moles of koh (strong electrolyte) each in 1.0 kg of water
i = 2 for LiOH and 2 for KOH
Then,
</span>Tbp,soln - 100 = (2+2)(0.512)((1.5+3)/1 kg)
Tbp,soln = 109.22°C
<span>
2. </span><span>0.40 mole of al(no3)3 (strong electrolyte) and 0.40 mole of cscl (strong electrolyte) each in 1.0 kg of water
</span>
i = 4 for al(no3)3 and 2 for cscl
Then,
Tbp,soln - 100 = (4+2)(0.512)((0.4+0.4)/1 kg)
Tbp,soln = 102.46°C
<em>Thus, the first solution will have a higher boiling point.</em>
Answer:
density = (mass) divided by (volume)
or just <u><em>D = M/V</em></u>
