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What is the pH of a solution that results from mixing 15.265 g of benzoic acid C6H5COOH MM equals 122.1 and 12.97g of sodium benzoate NaC6H5COO MM equals 144.1 in water to produce 500 ml of solution?
Wiki User
∙ 12y ago
pH = -log10(Ka) - log10([HA]/[A-])= 4.20 - log10([HA]/[A-])
in which
- [HA] = 15.265(g) / 122.1(g.mol-1) / 500(mL) = 2.500*10-4 mol/mL
and
- [A-] = 12.97(g) / 144.1(g.mol-1) / 500(mL) = 1.800*10-4 mol/mL
So pH = 4.20 - log10([2.5]/[1.8]) = 4.20 - log10(1.39) = 4.20 - 0.14 = 4.06
Wiki User
∙ 12y ago
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What equation is this HCl(aq) plus C6H5COONa(aq) -- and gt C6H5COOH(s) plus NaCl(aq)?
There can be no such reaction. Perhaps you meant HCl(aq) + C6H5COONa to get C6H5COOH plus NaCl. That would be converting the sodium salt of benzoic acid (sodium benzoate) into benzoic acid and sodium chloride by using hydrochloric acid.
Only one of these substances is a solid at stp c6h5cooh ch3ch28ch3 c6h14 ch3ch22o which do you think it is?
only the benzoic acid C6H5COOH
Why does benzoic acid precipitate out when the aqueous layer is acidified with HCl?
You're starting with something like sodium benzoate (depends on what base you used for the extraction step), which contains sodium ions (Na+) and benzoate ions (C6H5COO-). Ionic compounds like that tend to be soluble in water. When you add H+, you protonate the benzoate ion to make benzoic acid (C6H5COOH), which is a neutral molecule, and hardly soluble in water at all... so it precipitates.
What is the trade name for benzoic acid?
BENZOATE
Equation for reaction of phenol and benzoic acid?
Benzoic acid has a chemical formula of PhCOOH. It does not react with water so much as it dissociates in it, forming a free hydrogen ion. The reaction for the dissociation is PhCOOH(aq) --> PhCOO-(aq) + H+ (aq).
What is the balanced chemical equation of the reaction of benzoic acid and sodium bicarbonate?
C6H5COOH + NaHCO3 ===> C6H5COO-Na+ + H2O + CO2
What is the product of benzoic acid plus n-methylethanamine?
The reaction for benzoic acid and methyl amine produces benzamide. The equation is C6H5COOH + CH3NH2 ---> C6H5CONHCH3 + H2O.
What equation is this HCl(aq) plus C6H5COONa(aq) -- and gt C6H5COOH(s) plus NaCl(aq)?
There can be no such reaction. Perhaps you meant HCl(aq) + C6H5COONa to get C6H5COOH plus NaCl. That would be converting the sodium salt of benzoic acid (sodium benzoate) into benzoic acid and sodium chloride by using hydrochloric acid.
What is the IUPAC name or the common name for NaC6H5COO?
Sodium Benzoic Acid
Only one of these substances is a solid at stp c6h5cooh ch3ch28ch3 c6h14 ch3ch22o which do you think it is?
only the benzoic acid C6H5COOH
Why does benzoic acid precipitate out when the aqueous layer is acidified with HCl?
You're starting with something like sodium benzoate (depends on what base you used for the extraction step), which contains sodium ions (Na+) and benzoate ions (C6H5COO-). Ionic compounds like that tend to be soluble in water. When you add H+, you protonate the benzoate ion to make benzoic acid (C6H5COOH), which is a neutral molecule, and hardly soluble in water at all... so it precipitates.
Equation for reaction of phenol and benzoic acid?
Benzoic acid has a chemical formula of PhCOOH. It does not react with water so much as it dissociates in it, forming a free hydrogen ion. The reaction for the dissociation is PhCOOH(aq) --> PhCOO-(aq) + H+ (aq).
What is the trade name for benzoic acid?
BENZOATE
Benzoic acid and barium hydroxide?
The reaction is the following:Mg(OH)2 + 2 C6H5COOH = Mg(C6H5COO)2 + 2 H2O
Benzoic acid plus NaOH plus iodine?
C6H5COOH + NaOH + I2 -----------> C6H5COOI + NaI + H2O
What is equation for rxn of benzoic acid with K2CO3?
K2CO3 + 2 benzoic acid -> 2 potassium benzoate + H2CO3
What is the product of benzoic acid reacting with NH2?
benzoic acid + Sodium Hydroxide ==> water + sodium benzoate
