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Georgia [21]
2 years ago
12

When diluting the pickle juice food sample for titration, is it important to know the final volume exactly? Why or why not?

Chemistry
1 answer:
maks197457 [2]2 years ago
3 0

Explanation:

When diluting a fruit juice, it is important to know the final volume so as not to over dilute the solution.

  • The fruit juice can become too diluted if we don't know the final volume .
  • Concentration refers to the amount of solute dissolved in a solvent.
  • To achieve a desired amount of concentration during dilution, the volume of the target must be known.
  • This will serve as a guide of the amount of solvent to add in order to take the solution to the desired volume.

Learn more:

Dilution brainly.com/question/11493179

#learnwithBrainly

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If the speed of a vehicle increases by 22%, by what factor does its kinetic energy increase?
Mila [183]

Answer:

The kinetic increases by 48.84 %

Explanation:

The expression for the kinetic energy is:-

K.E.=\frac{1}{2}\times mv^2

Where, m is the mass of the object

v is the velocity of the object

Let the new velocity is:- v'

v is increased by 22 %. Thus, v' = 1.22 v

So, the new kinetic energy is:-

K.E.'=\frac{1}{2}\times mv'^2=\frac{1}{2}\times m{1.22}^2=\frac{1}{2}\times mv^21.4884=1.4884K.E.

<u>Thus, the kinetic increases by 48.84 %</u>

7 0
2 years ago
Read 2 more answers
Which set contains no ionic species?
SVEN [57.7K]
The awnser should be A
7 0
2 years ago
Draw a structure for the product of nucleophilic substitution obtained on solvolysis of tert−butyl bromide in methanol, and arra
Elena-2011 [213]

Answer:

2-methoxy-2-methylpropane

Explanation:

The first step for this reaction is the carbocation formation. In this step, a tertiary carbocation is formed. Also, we will have a good leaving group so bromide will be formed. Then the methanol acts as a nucleophile and attacks the carbocation. Next, a positive charge is generated upon the oxygen, this charge can be removed when the hydrogen leaves the molecule as H^+. (See figure)

6 0
2 years ago
Lithium forms compounds which are used in dry cells and storage batteries and in high-temperature lubricants. It has two natural
agasfer [191]

The naturally occurring isotopes of Li are Li-6 of mass 6.015121 amu and Li-7 of mass 7.016003 amu. The atomic mass of Li is 6.9409 amu, the percent abundance can be calculated using the following relation.

Atomic mass=m(Li-6 )×%(Li-6 )+m(Li-7 )×%(Li-7 )

Let the percent abundance of Li-6 be X thus, that of Li-7 will be 1-X, putting the values,

6.9409 amu=6.015121 amu\times X+7.016003 amu(1-X)

Or,

6.9409 =6.015121 X+7.016003-7.016003 X

Or,

X=0.075

Thus, 1-X=1-0.075=0.925

Thus, percent abundance of Li-6 is 0.075 or 7.5 % and that of Li-7 is 0.925 or 92.5%.

5 0
2 years ago
Read 2 more answers
For the reaction 4FeCl2(aq) + 3O2(g) → 2Fe2O3(s) + 4Cl2(g), what volume of a 0.945 M solution of FeCl2 is required to react comp
Mnenie [13.5K]

Answer:

0.01M

Explanation:

Given paramters:

Volume of FeCl₂ = ?

Concentration = 0.945M

Number of molecules of O₂ = 4.32 x 10²¹molecules

Solution:

The balanced reaction equation is given below:

           4FeCl₂ + 3O₂ → 2Fe₂O₃ + 4Cl₂

Now, to solve the problem we use mole relationship between the compounds.

We work from the known to the unknown compounds. Here, the known is the oxygen gas because from the given parameters we can estimate the number of moles of the reacting gas.

  number of moles of O₂ = \frac{number of elementary of particles}{6.02 x 10^{23}}

number of moles of O₂ =  \frac{4.32 x 10^{21}}{6.02 x 10^{23}}

number of moles of O₂ = 0.007mole

now, from the reaction equation we find the number of moles of the FeCl₂:

   3 mole of O₂ reacted with 4 moles of FeCl₂

0.007mole of O₂ reacted with \frac{4 x 0.007}{3} = 0.0096mole O₂

Now to find the volume of FeCl₂ we use the expression below;

       volume of FeCl₂ = \frac{number of moles}{concentration}

                                   =  \frac{0.0096}{0.945}

                                    = 0.01L

7 0
2 years ago
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