Homework Answers
Add Answer to:
Question 4 (0.5 points) A phosphorous acid solution was titrated with NaOH using the following chemical...
Questions 1. Calculate the molarity of a sodium hydroxide (NaOH) solution that is titrated with 0.6887...
Questions 1. Calculate the molarity of a sodium hydroxide (NaOH) solution that is titrated with 0.6887 g of oxalic acid (Equation 2). The titration requires 15.80 mL of the NaOH solution to reach the end point. Calculate the molarity of a sulfuric acid (H,SO) solution if 30.10 mL of 0.62 10 M NaOH is required to reach the end point when titrated against 10.00 mL of the unknown acid solution. The balanced chemical equation for the reaction is given below....
A titration of vinegar with a solution of NaOH was performed. If 3.35 mL of vinegar...
A titration of vinegar with a solution of NaOH was performed. If 3.35 mL of vinegar needs 45.0 mL of 0.135 M NaOH to reach the equivalence point in a titration CH3COOH(aq)+NaOH(aq)→H2O(l)+NaC2H3O2(aq) Part A: Calculate the mass of acetic acid present in the vinegar sample? Part B: How many grams of acetic acid are in each mL of vinegar? Part C:How many grams of acetic acid would be in a 1.60 qt sample of this vinegar? Part D: How many...
If 32.12 mL of 3.77 M hydrochloric acid solution, HCl, are titrated with 51.5 mL of sodium hydroxide solution, NaOH...
If 32.12 mL of 3.77 M hydrochloric acid solution, HCl, are titrated with 51.5 mL of sodium hydroxide solution, NaOH, according to HCl(aq) + NaOH(aq) - NaCl(aq) + H2O(1) what is the concentration of the sodium hydroxide solution? (Enter your
9) 19.63 mL of 0.100 M NaOH is required to neutralize 2.00 mL of a solution...
9) 19.63 mL of 0.100 M NaOH is required to neutralize 2.00 mL of a solution containing acetic acid according to the following reaction:HC2H3O2(aq) + NaOH(aq) → NaC2H;O2(aq) + H2O(1). How many moles of NaOH were used in this titration? Report the correct number of significant figures, and report the units. 10) 19.63 mL of 0.100 M NaOH is required to neutralize 2.00 mL of a solution containing acetic acid according to the following reaction: HC2H302(aq) + NaOH(aq) → NaC2H:02(aq)...
An unknown acid is titrated with a strong base (NaOH) to produce the above titration curve....
An unknown acid is titrated with a strong base (NaOH) to produce
the above titration curve. Key points on this graph reveal
important information about the substance and the solution created
with it.
What volume of NaOH is needed to reach the equivalence point
(the point where you added equal moles of NaOH to the
acid)? Select one of the following : ["10 mL", "5
mL", "20 mL", "30 mL", "40 mL", "25 mL", "15 mL", "35 mL"]
...
Let’s assume that during last lab you prepared a solution of NaOH. After standardization you determined...
Let’s assume that during last lab you prepared a solution of NaOH. After standardization you determined the concentration to be 0.113 M. This NaOH was then used to determine the concentration of ascorbic acid in a vitamin C tablet. To do this, a Vitamin C tablet was crushed and 0.200 g were placed in a flask with 50 mL of water. The vitamin C solution was then titrated with the standard NaOH. This was repeated twice, for a total of...
Standardization of NaOH solution experiment: A 0.75 g sample of pure acid KHP was titrated to...
Standardization of NaOH solution experiment: A 0.75 g sample of pure acid KHP was titrated to phenolphthalein endpoint using 45.34 ml NaOH of unknown concentration. The formula weight of pure KHP is 204.22g/mol. Write the chemical equation for the neutralization reaction, indicate the color change of the indicator at the endpoint, and calculate molarity of the NaOH solution. Show your work. 1. Chemical equation ------------- 2. Endpoint color change ---- 3. NaOH molarity --------- Determine percent purity of impure KHP...
A 25.00 mL sample of an unknown sulfuric acid solution is titrated with 29.84 mL of...
A 25.00 mL sample of an unknown sulfuric acid solution is titrated with 29.84 mL of a sodium hydroxide solution with a concentration of 0.150 M NaOH. What is the concentration of the sulfuric acid solution? H.SO.(aq) + 2NaOH(aq) → Na2SO4 (aq) + 2 H2O(1) Show your work Final Answer
An aqueous solution of 0.100 M phosphoric acid (12.0 mL) is titrated with 0.400 M KOH...
An aqueous solution of 0.100 M phosphoric acid (12.0 mL) is
titrated with 0.400 M KOH as shown below. phosphoric acid has three
pKas: 2.148, 7.198, 12.375.
H3PO4(aq) + OH-(aq)
H2PO4-(aq) +
H2O(l)
H2PO4-(aq) + OH-(aq)
HPO42-(aq) +
H2O(l)
HPO42-(aq) + OH-(aq)
PO43-(aq) + H2O(l)
Calculate the pH of phosphoric acid solution before any KOH has
been added.
We were unable to transcribe this imageWe were unable to transcribe this imageWe were unable to transcribe this image
Questions 3, 4, & 5 pls (3) You will titrate a solution of an unknown acid...
Questions 3, 4, & 5 pls
(3) You will titrate a solution of an unknown acid (HX(aq)) by adding NaOH(aq). Suppose that 25 mL of 0.5 M NaOH(aq) is needed to reach the equivalence point. How many moles of HX were present initially? Show the calculation. (4) You will titrate acid solutions by adding 0.2-0.3-mL or 2-3-mL portions of NaOH(aq). When should you add the smaller volume? (5) The concentration of an aqueous solution of NaOH cannot be accurately determined...
Questions 1. Calculate the molarity of a sodium hydroxide (NaOH) solution that is titrated with 0.6887 g of oxalic acid (Equation 2). The titration requires 15.80 mL of the NaOH solution to reach the end point. Calculate the molarity of a sulfuric acid (H,SO) solution if 30.10 mL of 0.62 10 M NaOH is required to reach the end point when titrated against 10.00 mL of the unknown acid solution. The balanced chemical equation for the reaction is given below....
If 32.12 mL of 3.77 M hydrochloric acid solution, HCl, are titrated with 51.5 mL of sodium hydroxide solution, NaOH, according to HCl(aq) + NaOH(aq) - NaCl(aq) + H2O(1) what is the concentration of the sodium hydroxide solution? (Enter your
9) 19.63 mL of 0.100 M NaOH is required to neutralize 2.00 mL of a solution containing acetic acid according to the following reaction:HC2H3O2(aq) + NaOH(aq) → NaC2H;O2(aq) + H2O(1). How many moles of NaOH were used in this titration? Report the correct number of significant figures, and report the units. 10) 19.63 mL of 0.100 M NaOH is required to neutralize 2.00 mL of a solution containing acetic acid according to the following reaction: HC2H302(aq) + NaOH(aq) → NaC2H:02(aq)...
An unknown acid is titrated with a strong base (NaOH) to produce
the above titration curve. Key points on this graph reveal
important information about the substance and the solution created
with it.
What volume of NaOH is needed to reach the equivalence point
(the point where you added equal moles of NaOH to the
acid)? Select one of the following : ["10 mL", "5
mL", "20 mL", "30 mL", "40 mL", "25 mL", "15 mL", "35 mL"]
...
Standardization of NaOH solution experiment: A 0.75 g sample of pure acid KHP was titrated to phenolphthalein endpoint using 45.34 ml NaOH of unknown concentration. The formula weight of pure KHP is 204.22g/mol. Write the chemical equation for the neutralization reaction, indicate the color change of the indicator at the endpoint, and calculate molarity of the NaOH solution. Show your work. 1. Chemical equation ------------- 2. Endpoint color change ---- 3. NaOH molarity --------- Determine percent purity of impure KHP...
A 25.00 mL sample of an unknown sulfuric acid solution is titrated with 29.84 mL of a sodium hydroxide solution with a concentration of 0.150 M NaOH. What is the concentration of the sulfuric acid solution? H.SO.(aq) + 2NaOH(aq) → Na2SO4 (aq) + 2 H2O(1) Show your work Final Answer
An aqueous solution of 0.100 M phosphoric acid (12.0 mL) is
titrated with 0.400 M KOH as shown below. phosphoric acid has three
pKas: 2.148, 7.198, 12.375.
H3PO4(aq) + OH-(aq)
H2PO4-(aq) +
H2O(l)
H2PO4-(aq) + OH-(aq)
HPO42-(aq) +
H2O(l)
HPO42-(aq) + OH-(aq)
PO43-(aq) + H2O(l)
Calculate the pH of phosphoric acid solution before any KOH has
been added.
We were unable to transcribe this imageWe were unable to transcribe this imageWe were unable to transcribe this image
Questions 3, 4, & 5 pls
(3) You will titrate a solution of an unknown acid (HX(aq)) by adding NaOH(aq). Suppose that 25 mL of 0.5 M NaOH(aq) is needed to reach the equivalence point. How many moles of HX were present initially? Show the calculation. (4) You will titrate acid solutions by adding 0.2-0.3-mL or 2-3-mL portions of NaOH(aq). When should you add the smaller volume? (5) The concentration of an aqueous solution of NaOH cannot be accurately determined...
Most questions answered within 3 hours.
-
How would you train your employees to avoid risks of using
mobile devices?
asked 15 minutes ago -
Assume Kw = 1.01 ✕ 10−14
For pure water, we can calculate [H3O+ ] = [OH...
asked 1 hour ago -
Suppose that on a temperature scale X, water boils at 203.0°X
and freezes at -105.7°X. What...
asked 2 hours ago -
BaS crystallizes in a cubic unit cell with S2- ions on each
corner and each face....
asked 2 hours ago -
A. 0≤P(Oi)≤10≤P(Oi)≤1 for each i
B. P(Oi)≤0P(Oi)≤0
C. P(Oi)=1+P(OCi)P(Oi)=1+P(OiC)
D. P(Oi)≥1P(Oi)≥1
If an experiment consists of...
asked 4 hours ago -
A battery has an emf of 9.20V and an internal resistance of 1.20
ohm. a)What resistance...
asked 4 hours ago -
The area of an elastic circular loop decreases at a constant
rate, dA/dt = −6.60×10−3 m2/s...
asked 5 hours ago -
The denaturation of proteins can be described by the
equilibrium
F⇌U
where F and U represent...
asked 6 hours ago -
Please answer what the maximum and minimum force is, and the
angle on the ion is...
asked 6 hours ago -
implement a program that reads a number of rows and a symbol.
The program will draw...
asked 6 hours ago -
Assume that when adults with smartphones are randomly selected,
45% use them in meetings or classes....
asked 6 hours ago -
Determine the number of formula units of
Na2SO4 and moles of oxygen contained in 8.11
moles...
asked 7 hours ago