Question
In: Chemistry
Oxalic acid dihydrate is a solid, diprotic acid that can be used in the laboratory as...
Oxalic acid dihydrate is a solid, diprotic acid that can be used in the laboratory as a primary standard. Its formula is H2C2O4
Solutions
Expert Solution
Lets start by writing a balanced chemical equation for the titration/ neutralization process:
H2C2O4.2H2O + Ba(OH)2 = BaC2O4 + 4H2O
1 mole H2C2O4.2H2O = 1 mole Ba(OH)2 = 126g H2C2O4.2H2O
Equality of mass and volume:
0.896g H2C2O4.2H2O = 0.0382 L Ba(OH)2
Our goal = mol Ba(OH)2/L Ba(OH)2 = Molarity of Ba(OH)2
Now lets set up the given values and calculate the unknown:
1mol
Ba(OH)2 0.896
g H2C2O4.2H2O
-------------------------------
x ---------------------------- = 0.186 mol/L
Ba(OH)2
126 g
H2C2O4.2H2O
0.0382 L Ba(OH)2
The molarity of barium hydroxide is 0.186 M.
queen_honey_blossom answered 1 year agoRelated Solutions
1)Solid oxalic acid exists as a dihydrate:(COOH)2*2H2O. How many grams of the acid-hydrate was required to make...
1)Solid oxalic acid exists as a
dihydrate:(COOH)2*2H2O. How many
grams of the acid-hydrate was required to make 800.0 ml of a 0.25 M
standard oxalic acid solution? (HINT: use 126.07 g/mol as the
molecular mass of oxalic acid dihydrate.)
2) Based on the balanced chemical equation presented in your lab
manual, what is the molarity of an unknown oxalic acid solution if
10.0 ml of the solution required 28.0 ml of 0.019 M
KMnO4 to reach completion?
Oxalic acid (H2C2O4) is a diprotic acid that occurs in plants such as rhubarb and spinach....
Oxalic acid (H2C2O4) is a diprotic acid that occurs in plants
such as rhubarb and spinach.
Part A
Calculate the pH and the concentration of C2O2−4 ions in 0.27 M
H2C2O4 (Ka1=5.9×10−2; Ka2=6.4×10−5).
Part B
Express your answer using two significant figure
[C2O2−4] =
________M
Oxalic acid (H2C2O4) is a diprotic acid that occurs in plants such as rhubarb and spinach....
Oxalic acid (H2C2O4) is a diprotic acid that occurs in plants
such as rhubarb and spinach.
Calculate the pH (part A) and the concentration (part B) of
C2O2−4 ions in 0.12 M H2C2O4 (Ka1=5.9×10−2;
Ka2=6.4×10−5).
How much oxalic acid dihydrate, in grams, is needed to prepare 650 mL of a 0.844...
How much oxalic acid dihydrate, in grams, is needed to prepare
650 mL of a 0.844 M solution? Oxalic acid dihydrate is (COOH)2•2
H2O.
Your Answer:
Question 5 options:
Answer
units
What volume of 0.169 M KMnO4 solution is needed to prepare 476.
mL of 0.0177 M KMnO4? Enter your answer in units of mL.
Your Answer:
Question 6 options:
Answer
units
You titrated a 21.00 mL solution of 0.0500 M oxalic acid with a
freshly prepared solution of KMnO4....
Oxalic acid , HOOCCOOH, is a diprotic acid with Ka1= 0.056 and Ka2=1.5x10-4. Determine the equilibrium...
Oxalic acid , HOOCCOOH, is a diprotic acid with Ka1= 0.056 and
Ka2=1.5x10-4. Determine the equilibrium [HOOCCOOH] in a solution
with an initial concentration of 0.116 M oxalic acid
. HOOCCOOH = HOOCCOO- + H+
HOOCCOO- = -OOCCOO- + H+
Oxalic acid , HOOCCOOH (aq) , is a diprotic acid with Ka1= 0.056 and Ka2=1.5x10-4. Determine...
Oxalic acid , HOOCCOOH (aq) , is a diprotic acid with Ka1= 0.056
and Ka2=1.5x10-4. Determine the pH of a 0.12 M oxalic acid
solution.
HOOCCOOH(aq) = HOOCCOO-(aq) +
H+(aq) HOOCCOO-(aq) = -OOCCOO-(aq) + H+(aq)
Many household cleaning products contain oxalic acid, H2C2O4, a diprotic acid with the following dissociation constants:...
Many household cleaning products contain oxalic acid, H2C2O4, a
diprotic acid with the following dissociation constants:
Ka1=5.9×10−2, Ka2=6.4×10−5Calculate the equilibrium concentration
of HC2O4− in a 0.20 mol L−1 solution of oxalic acid.
The leaves of the rhubarb plant contain high concentration of diprotic oxalic acid (HOOCCOOH) and must...
The leaves of the rhubarb plant contain high concentration of
diprotic oxalic acid (HOOCCOOH) and must be removed before the
stems are used to make the rhubarb pie. If pKa1=1.23 and pKa2=4.19,
what is the pH of a 0.0330 M solution of oxalic acid?
Potassium oxalate is a monohydrate salt that forms colorless, odorless crystals. Oxalic acid is a diprotic...
Potassium oxalate is a monohydrate salt that forms colorless,
odorless crystals. Oxalic acid is a diprotic acid with Ka1 = 5.4 x
10-2 and Ka2 = 5.3 x 10-5 . (a) If 1.842 g potassium oxalate
monohydrate is dissolved in enough water to make 100.0 mL of
solution, what will be the pH of the solution? (b) What will be the
equilibrium concentration of the fully protonated oxalic acid?
The leaves of the rhubarb plant contain high concentrations of diprotic oxalic acid (HOOCCOOH) and must...
The leaves of the rhubarb plant contain high concentrations of
diprotic oxalic acid (HOOCCOOH) and must be removed before the
stems are used to make rhubarb pie. If pKa1 = 1.23 and
pKa2 = 4.19, what is the pH of a 0.0205 M
solution of oxalic acid?
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