Answer:
1386g
Explanation:
Solubility of a solute is the ability of the solute to mix into a liquid (the solvent). It measures the highest amount of substance mixed into a liquid solvent while they are both at equal amounts.
if 14g dissolved in 100cm3
the amount that will dissolve in 1000cm3 = 14 x 1000/ 100
=1400g
To form a saturated solution, 1400 - 14 = 1386g must be added.
Answer:
11.6 mL of 0.1400 M of NaOH is required to reach equivalence point.
Explanation:
Chloroacetic acid is an monoprotic acid.
Neutralization reaction:
So, 1 mol of chloroacetic acid is neutralized by 1 mol of NaOH.
Molar mass of chloroacetic acid = 94.5 g/mol
So, 0.154 g of chloroacetic acid = moles of chloroacetic acid
= 0.00163 moles of chloroacetic acid
Lets assume V mL of 0.1400 M of NaOH is required to reach equivalence point.
So, number of moles of NaOH needed to reach equivalence point
= moles
So,
or, V = 11.6
Hence, 11.6 mL of 0.1400 M of NaOH is required to reach equivalence point.
The volume of NaOH needed for the titration is calculated by equating the number of moles of KHP and NAOH.
(1) number of moles of KHP:
n = mass of KHP / molar mass of KHP
Substituting,
n = 0.061 g / (204.22 g/mol) = 2.987 x 10⁻⁴ moles KHP
(2) number of moles of NaOH
n = (volume NaOH in L)(molarity of NaOH)
n = V x 0.01
Equating,
0.01V = 2.987 x 10⁻⁴
The value of V from the equation is 0.0299L of NaOH.
Converting the value to mL will give us the answer of 29.87 mL.
Q(heat)= MC delta T
M=mass
c= specific heat capacity
delta T= change in temperature
M=density x volume which is = 1700ml x 1.0g/ml =1700g
change in temperature= 373k-295k=78 K
specific heat capacity for water is 4.186 j/g
heat is therefore= 1700g x 4.186j/g x 78k=555063.6j or 555.0636Kj