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
user100 [1]
3 years ago
14

A solution of benzene in methanol has a transmittance of 28% in a 1.00 cm cell at a wavelength of 254 nm. only the benzene absor

bs light at this wavelength, not the methanol. what will the solution's transmittance become (in the same 1.00 cm cell) if the original benzene solution is diluted 10-fold with methanol?
Chemistry
1 answer:
Veronika [31]3 years ago
6 0

Answer:

\boxed{88 \%}

Explanation:

A = \epsilon cl\\A = -\log T\\\epsilon cl = -\log T

ε and l are constants.

If there are two different concentrations of benzene,

\dfrac{c_{2}}{c_{1}} = \dfrac{\log T_{2}}{\log T_{1}}

Data:

c₁ = c₁; c₂ = 0.1c₁;

T₁ = 0.28: T₂ = ?

Calculation:

\dfrac{0.10c_{1}}{c_{1}} = \dfrac{\log T_{2}}{\log 0.28}\\\\\log T_{2}= 0.10 \times \log0.28 = -0.0553\\\\T_{2} = 10^{-0.0553} = 0.88 \\\\\boxed{T_{2} = \textbf{88 \%}}

You might be interested in
WHO CAN HELP ME ON THIS NEED OF HELP! Due soon !
Otrada [13]

Answer:

Runoff from a cattle ranch

7 0
2 years ago
Is atmosphere nitrogen denser than pure nitrogen​
marusya05 [52]

Answer:

Atmospheric nitrogen is not heavier than chemical nitrogen, largely because “chemical nitrogen” is ultimately derived from atmospheric nitrogen. On the other hand, you could be asking why the atomic mass of nitrogen is not the same as the mass of nitrogen gas; that's because gaseous nitrogen is diatomic, .

Explanation:

This is from Google.

Hope this helps :))

7 0
3 years ago
PLEASE HELP!!
Mandarinka [93]

Answer:

a. 211.7

Explanation:

Iron Pyrite reacts with Oxygen to produce Iron (II) Oxide and Sulphur (IV) Oxide.

The equation is as follows:

4FeS₂₍s₎ + 11O₂₍g₎ → 2Fe₂O₃₍s₎ + 8SO₂₍g₎

From the equation, 4 moles of FeS₂ produce 8 moles of SO₂.

Therefore the reaction ratio is 4:8 or 1:2

198.20 grams of FeS₂ into moles is calculated as follows:

Moles= Mass/RMM

RMM of FeS₂ is 119.9750g/mol.

Number of moles = 198.20/119.9750g/mol

=1.652 moles of FeS₂

The reaction ratio of FeS₂ to SO₂ produced is 1:2

Thus SO₂ produced = 1.652 moles×2/1=3.304 moles

The mass of SO₂ produced =Moles ×RMM

=3.304 moles ×64.0638 g/mol

=211.667 grams

=211.7g

8 0
3 years ago
Of the following: H2(g); He(g); CO2(g); which would behave least like an ideal gas? Why?
Margarita [4]
Answer:

CO2(g)

Because CO2 is the larges molecule with specific geometric, therefore it is not likely to behave as an ideal gas.
4 0
3 years ago
Polywool fibre is<br> a.natural<br> b.synthetic<br> c.monomer<br> d.blended​
Mademuasel [1]
<h2><u>Answer</u> : - </h2>

Polywool fibre is <u>synthetic</u>.

⇒b. Synthetic

Hope It Helps You ✌️

3 0
3 years ago
Read 2 more answers
Other questions:
  • A man walked back and forth in a straight line. if he travels from point A to point B, then turns around and stops at point C, w
    10·2 answers
  • A ray of yellow light has a wavelength of about 5.8×10−7 m. Will exposure to yellow light cause electrons to be emitted from ces
    6·1 answer
  • How temperature affects the state of matter?
    10·1 answer
  • How many moles of SnCl2 will be produced if 85.3 g of FeCl3 is reacted with an excess of Sn for the following reaction:2 FeCl3(s
    13·1 answer
  • Calculate the pressure of the CO₂ (g) in the container at 425 K.
    12·1 answer
  • In a chemical reaction, atoms are rearranged to form new substances. This point
    6·1 answer
  • Which best describes a photon?
    14·1 answer
  • In an exothermic reaction, the energy of the reactants is greater than the energy of
    5·1 answer
  • Which subatomic particles have a positive charge and are located in the nucleus?
    15·1 answer
  • Write a balanced nuclear equation for the β emission of the following isotopes
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!