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
Marta_Voda [28]
3 years ago
15

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?

Chemistry
1 answer:
Katen [24]3 years ago
4 0
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!

You might be interested in
A train travels 65 km in three hours and then 52 km in two hours. What is its average speed?
Darya [45]

the average speed is 23.4 km per hour cause it is total distance over total time equal to average speed

5 0
3 years ago
is the atomic mass of chlorine represented by the mass of the most common naturally occurring isotope in chlorine?
IrinaVladis [17]
Combine the number of its Protons and Neutrons and you will have its atomic mass.
8 0
3 years ago
A chemistry student measures out 41 grams of sodium hydroxide, NaOH. They react it with an excess of hydrochloric acid, HCl, for
exis [7]
The answer will be around 687.928 grams
8 0
3 years ago
Methane gas and oxygen gas react to form water vapor and carbon dioxide gas. What volume of water would be produced by this reac
bagirrra123 [75]

Answer:

7.2L

Explanation:

The details of the solution are found in the answer. The balanced stoichiometric equation is first written and the volumes on the left and right hand sides dilligiently compared and calculations are made based on simple comparisons as show.

4 0
3 years ago
What is the mass of 5.2 moles of Fe?
sashaice [31]

Answer:

279.225g

Explanation:

7 0
3 years ago
Other questions:
  • What is the equation of the line that passes through point (4,12) and has a y-intercept of -2?
    8·1 answer
  • An iron chloride compound contains 55.85 grams of iron and 106.5 grams of chlorine. What is the most likely empirical formula fo
    5·1 answer
  • How do the fusion reaction in the sun compare to the fusion occurring in large atars and supernovas
    13·1 answer
  • Question 23
    8·1 answer
  • What properties do atoms of the same element share? Select all that apply.
    10·2 answers
  • What are similarities between beta decay and alpha decay
    9·1 answer
  • If 50 mL of pure acetone is mixed with 450 mL of water, what is the percent by volume of acetone?
    13·1 answer
  • How good are you with chemistry
    8·2 answers
  • Which one of these is it?
    11·1 answer
  • Which of the following statements is false?<br>​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!