Question
In: Chemistry
If 4.90 g of Na2CO3 is dissolved in enough water to make 250. mL of solution,...
If 4.90 g of Na2CO3 is dissolved in enough water to make 250. mL of solution, what is the molar concentration of the sodium carbonate?
Molar concentration of Na2CO3 = ______M
What are the molar concentrations of the Na+ and CO32- ions?
Molar concentration of Na+ = ______M
Molar concentration of CO32- = _______M
Solutions
queen_honey_blossom answered 1 year agoRelated Solutions
A solution contains 0.600 g of Ca2 in enough water to make a 1875 mL solution....
A
solution contains 0.600 g of Ca2 in enough water to make a 1875 mL
solution. What is the milliequivalents of Ca2 per liter (mEq/L) for
this solution?
A solution contains 0.750 g of Mg2 in enough water to make a 1875 mL solution....
A solution contains 0.750 g of Mg2 in enough water to make a
1875 mL solution. What is the milliequivalents of Mg2 per liter
(mEq/L) for this solution?
A solution contains 0.725 g of Mg2 in enough water to make a 1875 mL solution....
A solution contains 0.725 g of Mg2 in enough water to make a
1875 mL solution. What is the milliequivalents of Mg2 per liter
(mEq/L) for this solution?
A 0.4400-g sample of impure Ca(OH)2 is dissolved in enough water to make 60.30 mL of...
A 0.4400-g sample of impure Ca(OH)2 is dissolved in enough water
to make 60.30 mL of solution. 20.00 mL of the resulting solution is
then titrated with 0.1461-M HCl. What is the percent purity of the
calcium hydroxide if the titration requires 18.33 mL of the acid to
reach the endpoint?
17.11 g of Al2(SO4)3 is dissolved in water to make 500 mL solution. What is the...
17.11 g of Al2(SO4)3 is dissolved in water to make 500 mL
solution. What is the concentration of aluminum ion and sulfate ion
in the resulting solution
Sodium carbonate (2.4134 g) is dissolved in enough deionized water to give a solution with a...
Sodium carbonate (2.4134 g) is dissolved in enough deionized
water to give a solution with a total volume of 250.0 mL. What is
the pH of the resulting solution? Hint: For carbonic acid,
pKa1 = 6.351 and pKa2 =
10.329. What is the equilibrium concentration of
H2CO3 in the solution? calculate the value of
alpha HCO3-
Sodium carbonate (2.4134 g) is dissolved in enough deionized water to give a solution with a...
Sodium carbonate (2.4134 g) is dissolved in enough deionized
water to give a solution with a total volume of 250.0 mL. What is
the pH of the resulting solution? Hint: For carbonic acid, pKa1 =
6.351 and pKa2 = 10.329. What is the equilibrium concentration of
H2CO3 in the solution? calculate the value of alpha HCO3-
A sample containing acetaminophen was dissolved in water to make a 50.00-mL solution. The solution was...
A sample containing acetaminophen was dissolved in water to make
a 50.00-mL solution. The solution was titrated with 0.5065 M NaOH,
and the equivalence point was reached when 26.10 mL NaOH solution
was added.
The terminal hydrogen (on the OH) is removed during
neutralization. The Ka value of acetaminophen is 3.2 × 10−10.
Calculate the pH at the equivalence point.
A 1.00-g sample of piperazine hexahydrate is dissolved in enough water to produce 100.0 mL of...
A 1.00-g sample of piperazine hexahydrate is dissolved in enough
water to produce 100.0 mL of solution and is titrated with 0.500
M HCl.
A.) What is the initial pH of the solution, before any titrant
is added?
B.) The percent neutralization
points for a titration indicate the percent of the reagent that has
reacted. For example, at the 25% neutralization point for
piperazine, 75% (0.75×[Pip]) of the base remains, and 25% is
neutralized to form PipH+.
Calculate the pH...
If 5.2 g of butanoic acid, C4H8O2, is dissolved in enough water to make 1.0 L...
If 5.2 g of butanoic acid, C4H8O2, is dissolved in enough water
to make 1.0 L of solution, what is the resulting pH?
Assuming complete dissociation, what is the pH of a 4.41 mg/L
Ba(OH)2 solution?
The Kb for an amine is 9.747 × 10-5. What percentage of the
amine is protonated if the pH of a solution of the amine is 9.825?
(Assume that all OH– came from the reaction of B with H2O.)
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