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
Sonja [21]
3 years ago
11

1- DILUTIONS What will the volume be of a solution created using 120 mL of 4.50 M stock solution if the final molarity needs to

be 2.00 M? (answer in liters)​
Chemistry
1 answer:
andreyandreev [35.5K]3 years ago
8 0

Answer: 0.27 L

Explanation:

You might be interested in
Please help with these asap
aleksklad [387]

14. a. Acidic

15. b. Weaker

16. d. Dilute and weak

Explanation:

14. Which type of the solution is one with the pH of 3?

Solution with pH from 1 to 7 are acidic, equal to 7 is neutral and from 7 to 14 basic. The solution with the pH equal to 3 is <u>acidic</u>.

15. The smaller the value of the base dissociation constant (Kb), the <u>weaker</u> the base.

The dissociation reaction of a base (B) is:

B + H₂O → BH⁺ + OH⁻

Kb is defined as:

Kb = ( [BH⁺] × [OH⁻] ) / ( [B] × [H₂O] )

The potency of the base depends on the concentration of the hydroxide ion [OH⁻], so if the Kb ratio is small it means that the concentration of hydroxide ion is smaller so the base will be <u>weaker</u>.

16. A 0.39 M solution of an acid that ionizes only slightly in solution would be termed <u>dilute and weak</u>.

The acid is weak because is only slightly ionizing in solution. The therm diluted is a little bit arbitrarily because we ask yourself "diluted in respect with what"? I would characterize the acid to be diluted at a concentration of 1 M and concentrated at a concentration of 10 M.

Learn more about:

pH

brainly.com/question/1402522

#learnwithBrainly

8 0
3 years ago
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.210 M HClO(aq) with 0.210 M KOH(aq).
laiz [17]
<span>35.0 mL of 0.210 M
KOH molarity = moles/volume
 find moles of OH do the same thing for: 50.0 mL of 0.210 M HClO(aq) but for H+ they will cancel out: H+ + OH- -> H2O
 but you'll have some left over,
 pH=-log[H+] pOH
     =-log[OH-] pH+pOH
     =14</span>
3 0
3 years ago
Read 2 more answers
A student neutralized 16.4 milliliters of HCl by adding 12.7 milliliters of 0.620 M KOH. What was the molarity of the HCl acid?
Katen [24]
V ( HCl ) = 16.4 mL / 1000 => 0.0164 L

M( HCl) = ?

V( KOH) = 12.7 mL / 1000 => 0.0127 L

M(KOH) = 0.620 M

Number of moles KOH:

n = M x V

n = 0.620 x 0.0127

n = 0.007874 moles of KOH

number of moles HCl :

<span>HCl + KOH = H2O + KCl
</span>
1 mole HCl ------ 1 mole KOH
<span>? mole HCl--------0.007874 moles KOH
</span>
moles HCl = 0.007874 * 1 / 1

= 0.007874 moles of HCl

M = n / V

M = 0.007874 / <span>0.0164

</span>= 0.480 M

Answer (2)

hope this helps!

4 0
3 years ago
Heat is added to a chemical system. Which energy will increase?
dmitriy555 [2]

Answer:

the kinetic energy of the reactant molecules(C)

Explanation: i hope this is the correct answer if this is wrong or incorrect please let me know

8 0
2 years ago
Read 2 more answers
Which of the following best describes earth tectonic plates ?
meriva

Answer:

B They move because of the convection currents in the mantle.

6 0
2 years ago
Read 2 more answers
Other questions:
  • Why do you convert the grams to moles as opposed to just leaving it in grams?​
    14·1 answer
  • Vinegar is a solution of
    6·2 answers
  • How does the automatic hammer convert gravitational potential energy into kinetic energy?
    14·1 answer
  • Aqueous solutions of Al(NO3)3 and KOH are mixed together. Identify the precipitate that will form.
    7·1 answer
  • What does matter have to do with chemistry? How are forces involved?
    14·2 answers
  • You have a pot of pasta boiling in water on the stove. Which method will you use to separate the mixture of pasta and water?
    12·1 answer
  • 80 grams of water releases 2550 joules of heat. What is the temperature change of the water? Heat capacity of water is 4.2 J/g°C
    14·1 answer
  • Carbon disulfide is prepared industrially by reacting carbon with sulfur dioxide according to the above equation. If 70.8 g of c
    9·1 answer
  • What is a weak acid?
    7·1 answer
  • In a voltaic (galvanic) cell, oxidation occurs at the _____ and is where _____ in the salt bridge moves toward.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!