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
ehidna [41]
3 years ago
5

Neutralizing an olympic size swimming pool is conceptually very similar to performaing a massive titration experiment. Suppose a

700 thousand gallon swimming pool has a pH 9.33 which is a bit too high for swimming. Calculate how many gallons of 10 M HCI (strong acid) it will take to neutralize the swimming pool to pH = 7.
Chemistry
1 answer:
MrRissso [65]3 years ago
7 0

Answer:

6,97x10⁻³ gallons

Explanation:

pH is defined as:

pH = -log [H⁺]

Thus, you need to have, in the end:

10⁻⁷ = [H⁺]

And you have, in the first:

10^{-9,33} = [H⁺]

The volume of swimming pool is:

700'000 galllons ×\frac{3,78541 L}{1 gallon} = 2649787 L

Thus, the moles of H⁺ in the first and in the end are:

First:

10^{-9,33}mol/L × 2649787L = 1,24x10⁻³ moles

End:

10^{-7}mol/L × 2649787L = 0,265 moles

Thus, the moles of H⁺ you need to add are:

0,265 - 1,24x10⁻³ = <em>0,26376 moles</em>

These moles comes from 10M HCl, thus, the volume in gallons you need to add are:

0,26376moles*\frac{1L}{10moles}* \frac{1gallon}{3,78541L} =

<em>6,97x10⁻³ gallons</em>

<em></em>

I hope it helps!

You might be interested in
Suppose you want to make an acetic acid/acetate buffer to a pH of 5.00 using 10.0 mL of 1.00 M acetic acid solution. How many mi
olasank [31]

Answer:

Explanation:

Molarity of NaOAc needed

Using the Henderson-Hasselbalch Equation calculate base molarity needed given [HOAc] = 1.00M and pKa(NaOAc) = 4.75 and [HOAc] = 1.00m.

pH = pKa + log [NaOAc]/[HOAc]

5.00 = 4.75 + log[NaOAc]/[1.00M]

5.00 - 4.75 = log [NaOAc] - log[1.00M]

log [NaOAc] = 0.25 => [NaOAc] = 10⁰·²⁵ M = 1.78

Given 10ml of HOAc, how much (ml) 1.78M NaOAc to obtain a buffer pH of 5.00.

Determine Volume of Base Needed

(M·V)acid = (M·V)base => V(base) = (M·V)acid / (M)base

Vol (NaOAc) needed = (1.00M)(0.010L)/(1.78M) = 0.0056 liter = 5.6 ml.

Checking Results:

5.00 = 4.75 + log [1.78M]/[1.00M] = 4.75 + 0.25 = 5.00    QED.

8 0
3 years ago
(Immediate) Which structural formula represents a nonpolar molecule?
Vilka [71]

Answer:

What is going on I am scared

Explanation:

4 0
3 years ago
Read 2 more answers
Craig needs to organize, analyze, and interpret large amounts of quantitative data that he generated during an experiment. Which
notsponge [240]

Answer:

C. a computer

Explanation:

Quantitative data are measures of values or counts and are expressed as numbers. The best tool out of all shown to deal with a large amount of numerical data is a computer

4 0
3 years ago
Choose all the answers that apply.
faltersainse [42]

Answer:

2, 4, and 5

Explanation:

have a nice day:)

6 0
3 years ago
Read 2 more answers
How does increasing the temperature of a liquid below the boiling point affect
Vilka [71]
When the particles of a substance (usually a liquid) is heated up, its particles absorb the energy provided thereby increasing their kinetic energy resulting to more movement of the individual particles.
4 0
3 years ago
Other questions:
  • Sodium metal reacts is with water to form sodium hydroxide and hydrogen gas.Why is this a chemical change?
    12·1 answer
  • How many moles are in Ca+
    10·1 answer
  • What is the opposite of ductile and malleable?<br><br> PLEASE HELP!!!! I NEED THIS TONIGHT!!!
    13·2 answers
  • Atomic mass of an element depends upon what
    7·2 answers
  • What are follicles?
    15·1 answer
  • What is the enthalpy of the overall chemical equation
    10·2 answers
  • How many moles are in 456 g of CaCO3
    10·1 answer
  • Explain how to balance the chemical equation and classify its reaction type.
    8·2 answers
  • 6 The half-life of carbon-14 is 5,700 years. A sample of wood that originally contained 100 grams of carbon-14 now contains only
    5·1 answer
  • Suppose you boil an egg. What kind of change is taking place?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!