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What will happen if an enzyme is used to hydrolyze and dissolve pectin from plan cells?
A pectin under the influence of enzymes, will be hydrolyzed or will be dissolved tothe monomer unit of pectin, namely the galacturonic acid residues, which is aproduct of the oxidation...
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Which of these is an example of epiphytism?
a. mistletoe on a citrus tree
b. fern on a palm tree
State reasons
b. fern on a palm treeSome tropical ferns grow on the surface of a palm tree. However, they do not use nutrients from the tree and do not affect its...
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What is the concentration of hydronium ions in a solution which is 0.5M with respect to nitrous acid and 0.65M with respect to sodium nitrite? Assume that sodium nitrite is completely ionized.
solutionconcentration of H3O+ of 0.5M Nitrous acidpH=-log(molarity)pH=-(log0.5)=--0.3pH = 0.3H3O+=10-pH=100.3= 1.99concentration of H3O+ of 0.65pH=-(log 0.65)pH=0.187H3O+=10-0.187=0.645
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a one molar solution of HCl is about 92 percent ionized at room temperature .Calculate Ka for HCl.
The Ka value for the reaction HCl → H+ + Cl- is defined: Ka = ([H+][Cl-])/[HCl], where [H+] – the concentration of protons, [Cl-] – the concentration of chloride anions,...
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What is the concentration of hydronium ions in a solution which is 0.5M with respect to nitrous acid and 0.65M with respect to sodium nitrite. Assume that sodium nitrite is completely ionized?
concentration of H3O+ of 0.5M Nitrous acidpH=-log(molarity)pH=-(log0.5)=--0.3pH = 0.3H3O+=10-pH=100.3= 1.99concentration of H3O+ of 0.65pH=-(log 0.65)pH=0.187H3O+=10-0.187=0.645
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an aqueous solution that contains 285mg of trichloroacetic acid (Cl3COOH) (M.wt=163g/mol), in 10ml (the acid is 73% ionized in water).
Answer: % = m solute / m solution m (H 2 O) = ρ · V = 1 · 10 = 10 g % (Cl 3 COOH) = m solute...
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Computation ionization constant of hydrofluoric acid, 0.1 F solution is 7.13 per cent ionized.
Hydrofluoric acid dissociates as following:HF + H2O = H3O+ + F-Ionization constant equals:Ka = [H3O+] [F-] / [HF]As 7.13 % of solution is ionized:[F-] = [H3O+] = 7.13 % ×...
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Find the pH of a 0.00065 M HCl solution. The HCl is a strong acid and is 100% ionized in water.
pH = -lg [H+] = -lg [0.00065] = 3.19
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Which of these elements would be predicted to form an anion when ionized?
Use letters in alphabetical order to select options
A
Barium
B
Oxygen
C
Aluminum
D
Sodium
Solution:O2 would be predicted to form an anion when ionized.Answer: B Oxygen
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A 0.040 M solution of a monoprotic acid is 14.5% ionized. Calculate the ionization constant of the acid.
K=a^2 x c = 0.145^2 x 0.04 = 0,000841.
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