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
ExtremeBDS [4]
1 year ago
10

in the titration of naoh with vinegar, a student forgot to condition the buret, and it was wet with deionized water before filli

ng with naoh solution. how will this affect the calculate molarity of naoh?
Chemistry
1 answer:
Fynjy0 [20]1 year ago
7 0

This NaOH calculation will have an impact on the molarity since there is a little quantity of deionized water present, which reduces the molarity of the NaOH, and because conditioning Bury will increase the volume needed to neutralize the acid.

The amount of NaOH added has an inverse relationship with its molarity. As a result, (CM)NaOH will decrease as NaOH increases. The moles of solute per liter of solution is measured as molarity. Molarity is represented by a capital M.

A solution is a combination of two or more compounds in chemistry in which neither ingredient undergoes chemical change. For instance, salt water is a mixture of salt and water (the solvent) (the solute). The amount of dissolved material in a solution is known as concentration.

To learn more about molarity

brainly.com/question/8732513

#SPJ4

You might be interested in
What is the molar mass of <br> C4H9, 114.17 g/mol
mihalych1998 [28]

Answer:

4 x 12 +9 x 1= 56

Explanation:

I do not know what the 114.17 g/mol comes from

6 0
3 years ago
Read 2 more answers
When the ph of an aqueous solution is changed from 1 to 2, the concentration of hydronium ions in the solution is.
kiruha [24]

Answer:

decreased by a factor of 10

Explanation:

pH is defined in such a way that;

pH= −log10(H)

Where H represents the concentration of Hydronium or Hydrogen ions

Given that pH is changed from 1 to 2,

By rearranging the above formula , we get 10−pH = H

  • if pH=1,H=10−1=0.1M
  • if pH=2,H=10−2=0.01M

Therefore,  0.1/0.01 = 10 and 0.1 > 0.01

Hence, the concentration of hydronium ions in the solution is decreased by a factor of 10

7 0
2 years ago
A chemist weighed out 20.7 g of sodium . Calculate the number of moles of sodium she weighed out
Pachacha [2.7K]

Answer:

about 0.9 mol

Explanation:

there are 22.990 g/mol of Na

20.7/22.99 = 0.900391 mol

about 0.9 mol

8 0
3 years ago
A compound with molecular formula C6H15N exhibits a singlet at d 0.9 ppm (1H), a triplet at 1.10 ppm (3H), a singlet at 1.15 ppm
Triss [41]

Answer:

CH3 - CH2 - NH - C(CH3)3

Explanation:

The 1HNMR is the acronym for Proton nuclear magnetic resonance and it is used in chemistry or Chemical laboratory for the analysis and identification of compounds.

In order to be able to answer the question accurately you have to have the tables containing all the values for chemical shift. The Chemical shift is measured in ppm and it occur due to Resonance frequency variation.

From the table, a singlet at 1.15 ppm (9H) is - C(CH3)3.

A singlet at d 0.9 ppm (1H) shows the presence of a secondary amine group, that is -R2NH group.

A triplet at 1.10 ppm (3H) shows that we have;

CH3- CH2-

A quartet at 2.6 ppm (2H) shows that we have;

-CH2 - CH3.

Therefore, joining all together we have;

CH3 - CH2 - NH - C(CH3)3.

Kindly check attached file for the picture of the structure.

5 0
3 years ago
PH is 7.45. Calculate value of [H3O+] and [OH-]
lana66690 [7]

Answer:

The answer is (H30+) =3,55e-8M and (OH-)=2,82e-7M

Explanation:

We use the formulas:

pH= - log(H30+)  and Kwater=(H30+)x(OH-)

pH= - log(H30+)  ----< (H30+)= antilog- pH=antilog- 7,45=3,55E-8M

Kwater=(H30+)x(OH-)

(OH-)=Kwater/(H30+)= 1,00e-14/3,55e-8 = 2,82e-7

8 0
3 years ago
Other questions:
  • Magnesium hydroxide is used as an antacid in milk of magnesia and reacts with hydrogen chlrode in the stomach to form water and
    9·1 answer
  • "the order-of-magnitude of the diameter of an" atom is closest to
    13·1 answer
  • Atoms of which two elements have a combined total of 23 protons?
    14·1 answer
  • Which part of the atom is involved in bonding?
    5·1 answer
  • Ow doe the respiratory system work? (Use 3-5 sentences to explain how the respiratory system works.)
    14·2 answers
  • You are given a solution containing a pair of enantiomers (A and B). Careful measurements show that the solution contains 98% A
    12·1 answer
  • A student transfers a gas at STP from a 11.0 L tank to a 25.0 L tank. If the pressure
    15·2 answers
  • I need help with this!
    11·1 answer
  • This is a picture of a large sheet of ice that moves very slowly across the land. This sheet of ice covers the land and is
    8·1 answer
  • An atom of an element is shown by the model. <br> How is the model useful
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!