Question
In: Chemistry
The concentration of hydrochloric acid can be measured by reacting the acid with pure sodium carbonate....
The concentration of hydrochloric acid can be measured by reacting the acid with pure sodium carbonate.
a) Write the balanced chemical equation for this reaction.
b) If the complete reaction with 0.8642 (±0.0005) g of sodium carbonate (FW= 105.9884 ±0.0007) required 42.36 (±0.04) mL of acid, what is the molarity of the acid. Report the value with its absolute uncertainty.
Solutions
Expert Solution
2HCl + Na2CO3 ----> 2NaCl + CO2 +H2O
no of moles of Na2CO3 = weight of substance/Gram molecular weight
= 0.8647/105.9891
= 0.00815 moles
From balanced equation
1 mole of Na2CO3 react with 2moles of HCl
0.00815 moles of Na2CO3 react with = 2*0.00815 =0.0163 moles of HCl
Molarity = no of moles*1000/volume in ml
= 0.0163*1000/42.4
= 0.3844±0.0006M
molarity = 0.3844±0.0006M
queen_honey_blossom answered 2 years agoRelated Solutions
a)Write a balanced equation for the reaction of hydrochloric acid with sodium hydrogen carbonate (aka sodium...
a)Write a balanced equation for the reaction of hydrochloric
acid with sodium hydrogen carbonate (aka sodium bicarbonate).
b)How many milliliters of 0.225 M sodium bicarbonate are needed
to neutralize 12.0 mL of 0.20 M HCl? Refer to the equation you
wrote above.
Hydrochloric acid (HCl) reacts with sodium carbonate (Na2CO3), forming sodium chloride (NaCl), water (H2O), and carbon...
Hydrochloric acid (HCl) reacts with sodium carbonate (Na2CO3),
forming sodium chloride (NaCl), water (H2O), and carbon dioxide
(CO2). This equation is balanced as written:
2HCl(aq)+Na2CO3(aq)→2NaCl(aq)+H2O(l)+CO2(g)
Part A: What volume of 2.75 M HCl in liters is needed to react
completely (with nothing left over) with 0.750 L of 0.400 M
Na2CO3?
Part B: A 675-mL sample of unknown HCl solution reacts
completely with Na2CO3 to form 18.1 g CO2. What was the
concentration of the HCl solution?
17. The reaction hydrochloric acid with sodium hydrogen carbonate produces carbon dioxide gas as one product....
17. The reaction hydrochloric acid with sodium hydrogen
carbonate produces carbon dioxide gas as one product.
a) Write the equation for the reaction of these chemicals as
aqueous solutions. 500. mL of equimolar concentration of each
solution are combined in this reaction.
b) If 2.461 daL of carbon dioxide gas are produced at 32.81 ̊C
and 762.7 torr, constituting an 89.62% yield, what molarity of
sodium hydrogen carbonate solution was originally reacted,
presuming additive volumes?
What mass of hydrochloric acid (in grams) can be neutralized by 2.2 g of sodium bicarbonate?...
What mass of hydrochloric acid (in grams) can be neutralized by
2.2 g of sodium bicarbonate? (Hint: Begin by writing a balanced
equation for the reaction between aqueous sodium bicarbonate and
aqueous hydrochloric acid.)
A solution of HNO3 is standardized by reaction with pure sodium carbonate. 2H^+ + Na2CO3 ------>...
A solution of HNO3 is standardized by reaction with pure sodium
carbonate. 2H^+ + Na2CO3 ------> 2Na^+ + H2O + CO2
A volume of 28.28+-0.05 mL of HNO3 solution was required for
complete reaction with 0.8711+-0.0007g of Na2CO3 (FM
105.988+-0.001). Find the molarity of the HNO3 and its absolute
uncertainty with correct significant figures.
[HNO3] = __________M +- __________ M
Please help!!
The pH of the water is measured as 8.5 and the total concentration of carbonate species...
The pH of the
water is measured as 8.5 and the total concentration of carbonate
species is found to be 0.00180M. Find the concentrations of
H2CO3,
HCO3-and
CO32-
by both
graphically and using the equations
The pH of the water is measured as 8.5 and the total concentration of carbonate species...
The pH of the
water is measured as 8.5 and the total concentration of carbonate
species is found to be 0.00180M. Find the concentrations of
H2CO3,
HCO3-and
CO32-
by both
graphically and using the equations
Calculate the molar concentration of the acid if 125 mL of hydrochloric acid was required to...
Calculate the molar concentration of the acid if 125 mL of
hydrochloric acid was required to neutralize 45.0 mL of 0.345 M
lithium hydroxide. Be sure to use a balanced equation.
Dr. Dahm is trying to generate CO2(g) by reacting an acid with calcium carbonate. If he...
Dr. Dahm is trying to generate CO2(g) by reacting an
acid with calcium carbonate. If he pours 389 mL of a 1.6 M solution
of H2SO4 into a flask that contains 69.5 g of
CaCO3. If the temperature is 30 °C and the pressure is
0.984 atm calculate the volume of CO2(g) produced.
H2SO4 +
CaCO3 CO2(g)
+
CaSO4(aq) +
H2O(l)
A solution of HNO3 is standardized by reaction with pure sodium carbonate. 2H+ + Na2Co3 arrowto...
A solution of HNO3 is standardized by reaction with pure sodium
carbonate.
2H+ + Na2Co3 arrowto 2Na+ + H2O + CO2
A volume of 25.36+/- 0.06mL of HNO3 solution was required for
complete reaction with 0.9572 +/- 0.0008 g of Na2CO3 (FM 105.988
+/- 0.001). Find the molarity of the HNO3 and its absolute
uncertainty.
HNO3=
M
+/-
M (sig figs count for
this)
If you could show me step-by-step how to do this problem, that
would be helpful.
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