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
Dafna11 [192]
3 years ago
9

The end point in a titration of a 43ml sample of aqueous lactic acid was reached by addition of 16mlof0.22MKOH titrant. One mole

of acid was titrated by one mole of base. What is the molar concentration of lactic acid
Chemistry
1 answer:
jek_recluse [69]3 years ago
3 0

Answer:

0.082 M

Explanation:

First we calculate the moles of KOH added, by multiplying its volume and concentration:

  • 0.22 M * 16 mL = 3.52 mmol KOH

Given that <em>one mole of acid reacts with one mole of base</em>, in the lactic acid sample there were 3.52 acid moles as well.

Finally we divide the acid moles by the volume, to calculate the concentration:

  • 3.52 acid moles / 43 mL = 0.082 M
You might be interested in
What is an electromagnetic wave?
ira [324]
Electromagnetic waves<span> or </span>EM waves<span> are waves that are created as a result of vibrations between an electric field and a magnetic field.</span>
6 0
3 years ago
In the Table of Atomic Particles, various symbols have two numbers. The top number represents the atomic mass of the particle, w
MArishka [77]
Atomic number and number of electrons.
5 0
3 years ago
Read 2 more answers
What is the correct electron configuration of the element with atomic number 20?
IgorLugansk [536]

Answer:

D is the correct answer

s orbital contain 2

p orbital contains 6

3 0
2 years ago
Calculate the ratio of effusion rates of cl2 to f2 .
WINSTONCH [101]
<span>Answer: Graham's law of gaseous effusion states that the rate of effusion goes by the inverse root of the gas' molar mass. râšM = constant Therefore for two gases the ratio rates is given by: r1 / r2 = âš(M2 / M1) For Cl2 and F2: r(Cl2) / r(F2) = âš{(37.9968)/(70.906)} = 0.732 (to 3.s.f.)</span>
6 0
3 years ago
How moles are there in 15 grams of SiO2
BigorU [14]
The answer you’re looking for is 0.250
7 0
3 years ago
Other questions:
  • The term "periodic" helps identify __________ that occur in the table, like electronegativity or atomic radii.
    14·1 answer
  • Describe a homogeneous mixture
    10·2 answers
  • Which type of radioactive decay can pass through the body?
    15·1 answer
  • John dalton postulated several statements about the atom. which statement did he NOT state?
    15·1 answer
  • Write the expression for the equilibrium constant Kp for the following reaction. Enclose pressures in parentheses and do NOT wri
    15·1 answer
  • What determines the ending units of a stoichiometry problem?
    10·1 answer
  • How many atoms are there in 0.655 moles of C6H14?​
    7·1 answer
  • How you will devide the meterial based on their solubility​
    9·1 answer
  • How many moles of CH3CH2Br are contained in 422 mL of 0.0950 M CH3CH2Br solution?
    14·1 answer
  • Identify the steps that are followed in taking a stratified random sample. i. Take a sample of size n/k from each strata, where
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!