In a titration with NaOH, CaCO3, and HCl, I found the moles of both the NaOH,...
In a titration with NaOH, CaCO3, and HCl, I found the moles of both the NaOH, HCl, as well as the moles of acid neutralized. How can I find the moles of the base, which I'm assuming is CaCO3?
Homework Answers
HCl is neutralized by Calcium carbonate as follows
CaCO3 (s) + H+ (aq) ------> Ca2+ + HCO3- (aq)
HCO3- (aq) + H+ (aq) -----> H2CO3 (aq) ---> CO2 (g) + H2O (l)
We first dissolve the CaCO3 in the acid of known concentration, some of the HCl will be neutralized by the carbonate, but there will be something remaining. To find this residue acid, we perform a titration with NaOH, which gives the value of the acid left. This method is called Reverse Titration.
The ratio of CaCO3 to HCl is 1:2 and the molar mass of CaCO3 is 100 g/mol.
The no of moles of NaCl is equal to no of moles of HCl as the ratio is 1:1
No of moles of CaCO3 = mass of CaCO3 used X No of moles of HCl X 2 / ( Molar Mass of CaCO3 X No of moles of HCl neutralized)
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In a titration with NaOH, CaCO3, and HCl, I found the moles of
both the NaOH,...
Calculate the Amount of HCl Neutralized by Titration (mol) Parts 1 & 2, Standardization of NaOH and HC Record the mclarities from standardization or from reagent bottles of the HCl and the NaOH....
Calculate the Amount of HCl Neutralized by Titration (mol)
Parts 1 & 2, Standardization of NaOH and HC Record the mclarities from standardization or from reagent bottles of the HCl and the NaOH. molarity of HCI1.0780 molarity of NaOH 4851 Your value is acceptable. M Your value is acceptable. M Part 3. Determination of the Amount of Acid Neutralized by an Antacid Tablet Record the data from your titration in Table 1. (Enter NONE in any unused answer blanks.) Table...
1. A particular brand of antacid contains 500 mg of CaCO3 per 2.0 g tablet according...
1. A particular brand of antacid contains 500 mg of CaCO3 per 2.0 g tablet according to the label. How many mol of CaCO3 are contained in one tablet? nCaCO3 = ___ mol Ans. 0.005mol 2. The reaction by which the antacid neutralizes HCl is 2 HCl(aq) + CaCO3(s) à CaCl2(aq) + CO2(g) + H2O(l) How many moles of HCl can be neutralized by one tablet? nHCl = 0.010 mol 3. 50.0 mL of 0.300 M HCl are used to...
help please Consider a titration of 0.0200 moles HCl (a strong acid) with NaOH (a strong...
help please
Consider a titration of 0.0200 moles HCl (a strong acid) with NaOH (a strong base). At the equivalence point, the total volume of the solution is 78.9 mL. What is the pH of this solution at this equivalence point?
I'm not sure about how I'm supposed to find NaOH concentration from a strong acid and...
I'm not sure about how I'm supposed to find NaOH
concentration from a strong acid and strong base titration. I'm
thinking that 2.5×10^-8 mol per L that I calculated would make the
moles of NaOH 2.5x10^-8 mol since it's a one to one
ratio.
Hydrochloric acid titration: Confirming the concentration of NaOH Concentration of HCl solution from the stock bottle: _ 0.OSM! Initial pH of HCl solution: 1.66 pH Volume NaOH (mL) Concentration of NaOH (M) Non Phenolphthalein (end point)...
I'm doing a titration lab tomorrow and I am not sure what the formulas are to...
I'm doing a titration lab tomorrow and I am not sure what the
formulas are to calculate the moles of NaOH, the moles of
HCl, and the molarity of HCl.
The objective of this laboratory is to determine the molarity of
a hydrochloric acid solution using a known concentration of sodium
hydroxide as the titrant.
volume of HCl in flask: 25.00 mL
the net ionic equation for the reaction is:
H+(aq) + OH-(aq) --> H2O(l)
I don't have the data...
mol in titration M xV Gin L) (0.100 L NaOH used) in neutralizing the antacid: moles...
mol in titration M xV Gin L) (0.100 L NaOH used) in neutralizing the antacid: moles of HCI added to the antacid moles of HCl used in titration mol Mass of antacid weighed mol mol LAB 8 The Neutra lizing Power of Antacids ere ME: Wikesson 1. How many milliliters of 0.100 M NaOH is needed to neutralize 20.0 mg of CACO3? roquired to boil after dissolving the antacid tablet (CACO3)? of coe Produce
In an acid base reaction in which HCL neutralizes NaOH, determine how many grams of NaOH...
In an acid base reaction in which HCL neutralizes NaOH, determine how many grams of NaOH are neutralized if you add 23 grams of HCl
I'm attempting to perform some calculations on a backwards titration. After HCl has completeley reacted with...
I'm attempting to perform some calculations on a backwards titration. After HCl has completeley reacted with all CO32- in solution, we have excess HCl which we then titrate with NaOH to determine how much carbonate was in solution to begin with. Th process was simulated by adding 2 mL of 3 M HCl to a flask and titration with NaOH. We are to assume all HCl added reacted with carbonate and are to subtract the number of mols H+ consumed...
A titration of 20.00 mL of an unknown HCl solution with 0.2350 M NaOH starts at...
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A solution of which compound will be in the buret during your experiment? NaOH HCl HOAc...
A solution of which compound will be in the buret during your experiment? NaOH HCl HOAc EtOAc EtOH You will use titration to determine the equilibrium concentration of one component of this chemical reaction. Which component will you be determining the concentration of? HOAc (acetic acid) H2O (water) EtOAc (ethyl acetate) EtOH (ethyl alcohol) HCl (hydrochloric acid) Recall how titration works. If 17.51mL of 0.0985M NaOH is need to achieve the endpoint of a titration with KHP (potassium hydrogen phthalate), how many...
Calculate the Amount of HCl Neutralized by Titration (mol)
Parts 1 & 2, Standardization of NaOH and HC Record the mclarities from standardization or from reagent bottles of the HCl and the NaOH. molarity of HCI1.0780 molarity of NaOH 4851 Your value is acceptable. M Your value is acceptable. M Part 3. Determination of the Amount of Acid Neutralized by an Antacid Tablet Record the data from your titration in Table 1. (Enter NONE in any unused answer blanks.) Table...
help please
Consider a titration of 0.0200 moles HCl (a strong acid) with NaOH (a strong base). At the equivalence point, the total volume of the solution is 78.9 mL. What is the pH of this solution at this equivalence point?
I'm not sure about how I'm supposed to find NaOH
concentration from a strong acid and strong base titration. I'm
thinking that 2.5×10^-8 mol per L that I calculated would make the
moles of NaOH 2.5x10^-8 mol since it's a one to one
ratio.
Hydrochloric acid titration: Confirming the concentration of NaOH Concentration of HCl solution from the stock bottle: _ 0.OSM! Initial pH of HCl solution: 1.66 pH Volume NaOH (mL) Concentration of NaOH (M) Non Phenolphthalein (end point)...
I'm doing a titration lab tomorrow and I am not sure what the
formulas are to calculate the moles of NaOH, the moles of
HCl, and the molarity of HCl.
The objective of this laboratory is to determine the molarity of
a hydrochloric acid solution using a known concentration of sodium
hydroxide as the titrant.
volume of HCl in flask: 25.00 mL
the net ionic equation for the reaction is:
H+(aq) + OH-(aq) --> H2O(l)
I don't have the data...
mol in titration M xV Gin L) (0.100 L NaOH used) in neutralizing the antacid: moles of HCI added to the antacid moles of HCl used in titration mol Mass of antacid weighed mol mol LAB 8 The Neutra lizing Power of Antacids ere ME: Wikesson 1. How many milliliters of 0.100 M NaOH is needed to neutralize 20.0 mg of CACO3? roquired to boil after dissolving the antacid tablet (CACO3)? of coe Produce
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