When the parietal cells of the stomach secrete HCl, the initial HCl concentration is about 160...
When the parietal cells of the stomach secrete HCl, the initial HCl concentration is about 160 mM. What is the pH at this concentration? (when considering significant figures with logarithms, the number of sig figs in the original argument is the number of digits after the decimal point in your answer)
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![Solutions we know that (pH = -logo [7] where [+] is the concentration of Htion in Molarity (M) Hce 160MM Httce- 0 0 Initial 1](http://img.homeworklib.com/questions/a84a0a00-ca8e-11eb-abba-d1082a18881c.png?x-oss-process=image/resize,w_560)
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When the parietal cells of the stomach secrete HCl, the initial
HCl concentration is about 160...
A solution of 0.0470 M HCl is used to titrate 29.0 mL of an ammonia solution...
A solution of 0.0470 M HCl is used to titrate 29.0 mL of an ammonia solution of unknown concentration. The equivalence point is reached when 15.5 mL HCl solution have been added. (Assume Kw = 1.01 ✕ 10−14.) (a) What was the original pH of the ammonia solution? WebAssign will check your answer for the correct number of significant figures (b) What is the pH at the 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)...
dont know how to calculate moles of HoAc and the ratio and the bottom table. please...
dont know how to calculate moles of HoAc and the ratio
and the bottom table. please help.
50 Postlaboratory Exercise ratory Exercise Used Mtor poldle on graph Have this page available for your class session after completing your report. (Do not attach it to your report.) the pH, ml, and moles NaOH columns only, before class (moles - M Calculate the equivalence point values first. note about significant figures: When a decimal number is converted to a log, the number...
Sodium hydrogen carbonate (NaHCO3) also known as sodium bicarbonate or "baking soda", can be used to...
Sodium hydrogen carbonate (NaHCO3) also known as sodium bicarbonate or "baking soda", can be used to relieve acid indigestion. Acid indigestion is the burning sensation you get in your stomach when it contains too much hydrochloric acid (HCI), which the stomach secretes to help digest food. Drinking a glass of water containing dissolved NaHCO, neutralizes excess HCl through this reaction: HCl(aq) NaHCO3(aq) NaCl(aq)+ H,O)+ Co,(0) 4 The CO, gas produced is what makes you burp after drinking the solution. Suppose...
Concentration of product(from Beer's law plot) How to do the graph for part B? plaees When...
Concentration of product(from Beer's law plot)
How to do the graph for part B?
plaees When taking the logarithm of a num after the decimal as signifi with a % transmitta ber, the resulting log should have as many cant figures in the original number. For example, a sample nce of 26.3 (3 significant figures) has an absorbance of A-2-log 26.3m2-1 log 26.3-2-1.420 -0.580 (3 places after the decimal) each solution has been calculated, the concentration of t . Gra...
3. To make a buffer solution, you can start with a solution of a known number...
3. To make a buffer solution, you can start with a solution of a known number of moles of the base form (A) and add a strong acid until you have neutralized the correct number of moles of the base to have the correct A HA ratio for the buffer you require. For the example using HF in the background information: a. How many moles of the base form (A) are required to start? HINT: The acid form (HA) will...
help on number 3 here is lab we did EXPERIMENT 19 An Analysis of Commercial Antacids...
help on number 3 here is lab we did
EXPERIMENT 19 An Analysis of Commercial Antacids Rolaids Alka Seltzer OBJECTIVES: Determine the per gram neutralizing ability of a commercial antacio Determine the per gram neutralizing ability of sodium bicarbonate Compare the effectiveness of several antacids. INTRODUCTION: "How do you spell relief two hecimie The parietal cells in the stomach secrete sufficient hydrochloric aci 0.10 M The flow of HCl increases when food enters the stomach and so acid secrete sufficient...
i want answer to all questions please Answer: 29) Consider the following generalized buffer solution equilibrium: When a small amount of a strong base such as sodium hydroxide is added to the so...
i want answer to all questions please
Answer: 29) Consider the following generalized buffer solution equilibrium: When a small amount of a strong base such as sodium hydroxide is added to the solution, which of the four species shown would experience an increase in concentration? A) BH B)H C) HO D)B E None of the species would increase in concentration. Answer: ( 30) What is true about a solution whose pH is less than 7 at 25°C? A) It has...
Based on the document below, 1. Describe the hypothesis Chaudhuri et al ids attempting to evaluate;...
Based on the document below,
1. Describe the hypothesis Chaudhuri et al ids attempting to
evaluate; in other words, what is the goal of this paper? Why is he
writing it?
2. Does the data presented in the paper support the hypothesis
stated in the introduction? Explain.
3.According to Chaudhuri, what is the potential role of thew
alkaline phosphatase in the cleanup of industrial waste.
CHAUDHURI et al: KINETIC BEHAVIOUR OF CALF INTESTINAL ALP WITH PNPP 8.5, 9, 9.5, 10,...
please use the information provided to fill out the first sheet (the data) Data Sheet: 1....
please use the information provided to fill out the
first sheet (the data)
Data Sheet: 1. Concentration of NaOH ALL volume measurements (in mL) must be recorded using two (2) digits to the right of the decimal or they are wrong. (Watch the significant figures.) SHOW ALL OF YOUR CALCULATIONS ON THE NEXT PAGE. 2. Initial volume of acid in buret (left photo) 3. Final volume of acid in buret (right photo) 4. Volume of acid (#3 #2) 5. Volume...
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)...
dont know how to calculate moles of HoAc and the ratio
and the bottom table. please help.
50 Postlaboratory Exercise ratory Exercise Used Mtor poldle on graph Have this page available for your class session after completing your report. (Do not attach it to your report.) the pH, ml, and moles NaOH columns only, before class (moles - M Calculate the equivalence point values first. note about significant figures: When a decimal number is converted to a log, the number...
Sodium hydrogen carbonate (NaHCO3) also known as sodium bicarbonate or "baking soda", can be used to relieve acid indigestion. Acid indigestion is the burning sensation you get in your stomach when it contains too much hydrochloric acid (HCI), which the stomach secretes to help digest food. Drinking a glass of water containing dissolved NaHCO, neutralizes excess HCl through this reaction: HCl(aq) NaHCO3(aq) NaCl(aq)+ H,O)+ Co,(0) 4 The CO, gas produced is what makes you burp after drinking the solution. Suppose...
Concentration of product(from Beer's law plot)
How to do the graph for part B?
plaees When taking the logarithm of a num after the decimal as signifi with a % transmitta ber, the resulting log should have as many cant figures in the original number. For example, a sample nce of 26.3 (3 significant figures) has an absorbance of A-2-log 26.3m2-1 log 26.3-2-1.420 -0.580 (3 places after the decimal) each solution has been calculated, the concentration of t . Gra...
3. To make a buffer solution, you can start with a solution of a known number of moles of the base form (A) and add a strong acid until you have neutralized the correct number of moles of the base to have the correct A HA ratio for the buffer you require. For the example using HF in the background information: a. How many moles of the base form (A) are required to start? HINT: The acid form (HA) will...
help on number 3 here is lab we did
EXPERIMENT 19 An Analysis of Commercial Antacids Rolaids Alka Seltzer OBJECTIVES: Determine the per gram neutralizing ability of a commercial antacio Determine the per gram neutralizing ability of sodium bicarbonate Compare the effectiveness of several antacids. INTRODUCTION: "How do you spell relief two hecimie The parietal cells in the stomach secrete sufficient hydrochloric aci 0.10 M The flow of HCl increases when food enters the stomach and so acid secrete sufficient...
i want answer to all questions please
Answer: 29) Consider the following generalized buffer solution equilibrium: When a small amount of a strong base such as sodium hydroxide is added to the solution, which of the four species shown would experience an increase in concentration? A) BH B)H C) HO D)B E None of the species would increase in concentration. Answer: ( 30) What is true about a solution whose pH is less than 7 at 25°C? A) It has...
Based on the document below,
1. Describe the hypothesis Chaudhuri et al ids attempting to
evaluate; in other words, what is the goal of this paper? Why is he
writing it?
2. Does the data presented in the paper support the hypothesis
stated in the introduction? Explain.
3.According to Chaudhuri, what is the potential role of thew
alkaline phosphatase in the cleanup of industrial waste.
CHAUDHURI et al: KINETIC BEHAVIOUR OF CALF INTESTINAL ALP WITH PNPP 8.5, 9, 9.5, 10,...
please use the information provided to fill out the
first sheet (the data)
Data Sheet: 1. Concentration of NaOH ALL volume measurements (in mL) must be recorded using two (2) digits to the right of the decimal or they are wrong. (Watch the significant figures.) SHOW ALL OF YOUR CALCULATIONS ON THE NEXT PAGE. 2. Initial volume of acid in buret (left photo) 3. Final volume of acid in buret (right photo) 4. Volume of acid (#3 #2) 5. Volume...
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