Question

What would be the controls of a lab where the amount of stomach acid neutralized by...

What would be the controls of a lab where the amount of stomach acid neutralized by an antacid is titrated?

At least 5 different controls.

Homework Answers

Answer #1

5 Necessary control

  1. Antacid tablet should be fine powder . Using a mortar we can do this but make sure that complete powder transfered into the 250ml conical flask from the mortar
  2. Mixing of Stomach acid (HCL) should be proper we can use stirrer also , and proper heating to complete dissolution ( be cautious about heating mild heating is required )
  3. Do not add normal water other than disttiled water ( 40ml)
  4. Do not fill the burets on the work bench . Always keep all chemicals below eye level
  5. Mount the buret on the stand. In real titrations, you would put a white towel or piece of paper over the dark base of the ring stand so the color change of the indicator will be easy to see.
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The daily output of stomach acid (gastric juice) is 1000 to 2000 mL. Prior to a...
The daily output of stomach acid (gastric juice) is 1000 to 2000 mL. Prior to a meal, stomach acid (HCl) typically has a pH of 1.38. A.) What is the [H3O+] of stomach acid? B.) One chewable tablet of the antacid Maalox contains 600. mg of CaCO3. Enter the neutralization equation. C.) Given that one chewable tablet of the antacid Maalox contains 600. mg of CaCO3, calculate the milliliters of stomach acid neutralized by two tablets of Maalox. D.) The...
The daily output of stomach acid (gastric juice) is 1000 mL. prior to meal, stomach acid...
The daily output of stomach acid (gastric juice) is 1000 mL. prior to meal, stomach acid Hcl typically has a ph of 1.42. PartC. calculate the milliters of stomachs acid neutralized by two tablets of Maalox Part D The antacid milk of magnesia contains 400 mg of Mg(Oh)2 per teaspoon. write the neutralization equations.? part E what is the volumes in milliters of milk of magnesia ?
The daily output of stomach acid (gastric juice) is 1000 to 2000 mL. Prior to a...
The daily output of stomach acid (gastric juice) is 1000 to 2000 mL. Prior to a meal, stomach acid (HCl) typically has a pH of 1.50 -what is the [H3O] of stomach acid? -Given that the antacid milk of magnesia contains 400. mg of Mg(OH)2 per teaspoon, calculate the number of milliliters of stomach acid that are neutralized by 1 tablespoon of milk of magnesia. (1 tablespoon = 3 teaspoons.)
A student performing our lab last semester determined that 27.68mL of base reacts with 25.0 mL...
A student performing our lab last semester determined that 27.68mL of base reacts with 25.0 mL of stomach acid. They then dissolved 1.666g of antacid into 200 mL of stomach acid and then removed a 20.0mL of the resulting solution. The titration of this 20 mL sample took 11.12mL of base. Calculate the volume of acid neutralized by the base in this 20 mL sample. Show your work to receive credit. Part II: 1. Antacid Brand Walgreens 2. Mass of...
A sample of acetic acid (weak acid) was neutralized with .05M NaOH solution by titration. 34...
A sample of acetic acid (weak acid) was neutralized with .05M NaOH solution by titration. 34 mL of NaOH had been used. Show your work. CH3COOH + NaOH-----CH3COONa + H2O a) Calculate how many moles of NaOH were used? b) How many moles of aspirin were in a sample? c) Calculate how many grams of acetic acid were in the sample d) When acetic acid is titrated with NaOH solution what is the pH at the equivalence point? Circle the...
what is the concentration of acetic acid if three 50ml samples of actic acid were neutralized...
what is the concentration of acetic acid if three 50ml samples of actic acid were neutralized with 19.96ml, and 19.97 ml of 0.121M NaOH
At one point in the lab you will need to perform an acid-base neutralization reaction, using...
At one point in the lab you will need to perform an acid-base neutralization reaction, using NaOH to neutralize HNO3. Calculate the required amount of NaOH needed for neutralization, knowing that nitric acid is 15.8 M and assuming 6 mL were used. In lab we will use a slight excess (+10%) of NaOH to ensure the acid is neutralized. HNO3 + NaOH à NaNO3 + H2O
Imagine a simplified gut epithelium, consisting of only a stomach and a colon. If the stomach...
Imagine a simplified gut epithelium, consisting of only a stomach and a colon. If the stomach secretes 18 mmol H+ into the gut lumen and the colon secretes 20 mmol HCO3-into the gut lumen, what is the net effect on extracellular fluid acid-base status? What is the net effect in the gut lumen?5. Continuing with the same quastion, if 5 mmol H+ are secreted into the stomach and 5 mmol HCO3- are secreted into the colon, what is the net...
What is the molarity of an aqueous phosphoric acid solution if 10.33 mL is completely neutralized...
What is the molarity of an aqueous phosphoric acid solution if 10.33 mL is completely neutralized by 17.24 mL of 0.1301 M NaOH? First, calculate the moles of H3PO4 at the dilution based on the volume and molarity of NaOH used.
What volume (mL) of 7.48 × 10 -2 M perchloric acid can be neutralized with 115...
What volume (mL) of 7.48 × 10 -2 M perchloric acid can be neutralized with 115 mL of 0.244 M sodium hydroxide?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT