1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sergejj [24]
3 years ago
13

Stomach acid is approximately 0.10 M HCl. How many mL of stomach acid can be neutralized by one regular antacid tablet that cont

ains 500 mg of solid CaCO3 (100.09 g/mol)?
Chemistry
1 answer:
Radda [10]3 years ago
7 0

Answer:

100 mL

Explanation:

The reaction that takes place is:

  • CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂

First we <u>convert 500 mg of CaCO₃ into mmoles</u>, using its <em>molar mass</em>:

  • 500 mg ÷ 100 mg/mmol = 5 mmol CaCO₃

Then we <u>convert 5 mmoles of CaCO₃ into HCl mmoles</u>, using the <em>stoichiometric coefficients of the balanced reaction</em>:

  • 5 mmol CaCO₃ * \frac{2mmolHCl}{1mmolCaCO_3} = 10 mmol HCl

Finally we <u>calculate the volume of a 0.10 M HCl solution (such as stomach acid) that would contain 10 mmoles</u>:

  • 10 mmol / 0.10 M = 100 mL
You might be interested in
Phenolphthalein is used as a visual indicator in a strong acid-strong base titration because
marysya [2.9K]
A strong acid- strong base titration is performed using a phenolphthalein indicator. Phenolphtalein is chosen because it changes color in a pH range between 8.3 – 10. It will appear pink in basic solutions and clear in acidic solutions. ... It is known as the titrant.
3 0
3 years ago
The electron configuration of a neutral elerpent is 1s 2s 2p 3s. If the electron configuration
Alchen [17]

Answer:

Ne 2

Explanation:

8 0
3 years ago
Nonmetals are ___.
Shkiper50 [21]
Poor conductors of heat
5 0
3 years ago
How many moles of water are formed when 22 mol of methane combusts?
icang [17]
Methane is a hydrocarbon which when burns in air (combustion) produces carbon dioxide and water. The equation for the reaction;
CH4 +2O2 = CO2 +2H2O
When one mole of methane combusts 2 moles of water are formed
Therefore; when 22 moles of methane combusts 44 moles of water are formed (22 ×2)
7 0
3 years ago
Given 6.98 x 10 4 power grams of iron, calculate the moles of iron present
KiRa [710]

Answer:

1249.88 mol.

Explanation:

∵ no. of moles of Fe = mass of Fe/atomic weight of Fe.

<em>∴ no. of moles of Fe </em>= (6.98 x 10⁴ g)/(55.845 g/mol) = <em>1249.88 mol.</em>

6 0
3 years ago
Other questions:
  • What is the error? NH4OH (aq) + KOH (aq) --&gt; KOH (aq) + NH4OH (aq)
    8·1 answer
  • PLEASE HELP WILL REWARD BRAINLIEST
    10·1 answer
  • How is the sun involved in a food web?<br>​
    15·2 answers
  • Calculate the kinetic energy of co2 at 254 k .
    12·1 answer
  • Which of the following types of energy does an object store in the bonds of atoms and molecules? (5 points)
    8·1 answer
  • A small helium tank measures about two feet high. Yet it can fill over 50 balloons! How can such a small tank contain enough hel
    9·1 answer
  • Why might the percent yield of copper produced be less than 100% of the expected amount?
    5·1 answer
  • NEED ASAP!! WILL GIVE BRAINLIEST!! Only have 10 minutes left please help.
    6·1 answer
  • How many significant figures does the number have?<br> 9,000, 100
    11·2 answers
  • What food item will provide c in the least mass? What is that mass?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!