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
Free_Kalibri [48]
3 years ago
13

A gas at 400 k is placed in a 4.0 l moveable piston. The gas is cooled to 252 k. What is the new volume of the piston?

Chemistry
1 answer:
katrin [286]3 years ago
6 0

Answer:

2.52L

       

Explanation:

Given parameters:

T₁  = 400K

V₁  = 4L

T₂ = 252K

unknown

V₂ = ?

Solution:

To solve this problem, we are going to apply charle's law. The law states that the volume of a fixed mass of gas is directly proportional to temperature provided pressure is constant.

Mathematically,

               \frac{V_{1} }{T_{1} }  = \frac{V_{2} }{T_{2} }

Substitute and solve for V₂

           \frac{4}{400}  = \frac{V_{2} }{252}

        V₂ = 2.52L

         

You might be interested in
Can an ion be either positive or negative? True or False
vekshin1

Answer:

True

Explanation:

3 0
3 years ago
The C=C bond in 2-cyclohexenone produces an unusually strong signal. Explain using resonance structuresBased on the above resona
frosja888 [35]

Answer:

When two single single bonds separated by a double bond (e.g C=C-C=C or C=C-C=O in the case of 2-cyclohexenone), the effect of resonance among those there bonds will be observed.

Explanation:

Since the Oxygen atom has higher electronegativity, it will cause the electrons in the resonance bonds 'flow' toward the Oxygen atom, so that the C=C will 'lose' some electron. The signal read for that bond will be different from other alkene structure.

Attachment is the resonance structure of 2-cyclohexene.

8 0
3 years ago
When using ion-selective electrodes, to compensate for a complex or unknown matrix, the _____________ method can be used to dete
VMariaS [17]

When using ion-selective electrodes, to compensate for a complex or unknown matrix, the  standard addition method can be used to determine the analyte concentration. Option D

<h3>What are  ion-selective electrodes?</h3>

Analytical chemistry is a science that deal with the measurement and detection of the accurate amount of a substance. Analytical chemistry plays a large role in environmental management as it helps in the determination of the levels of contaminants in a sample.

An ion selective electrode is used in analytical chemistry to measure the amount of a target ion by converting its activity into a measurable electrical signal.

Hence, when using ion-selective electrodes, to compensate for a complex or unknown matrix, the  standard addition method can be used to determine the analyte concentration.

Learn more about ion-selective electrodes:brainly.com/question/14987024

#SPJ1

7 0
2 years ago
Can u plz give an answer to me thank you​
vagabundo [1.1K]

The puppies have different colored noses because of reccesive and dominant genotypes.

Genotypes are represented by letters, capital being dominant and lowercase being recessive.

For example, lets say t = pink nose and T = black nose.

If the parents have black noses, then they will pass on T genotypes.

But, they also have hidden pink nose genotypes.

These hidden genotypes are passed on to the puppies, one of the puppies gets more black nose genotypes.

If a puppy gets tt, they will have a pink nose.

If they get TT, they will have a black nose

If they get Tt, they will also have a black nose.

Because the black nose is dominant, its more likley for the puppies to end up with a black nose.

4 0
3 years ago
Which of these compounds is ionic?<br> A. KF<br> B. CO<br> C. CO2<br> D. SO2
sukhopar [10]
The answer is A) KF. The rest are covalent. 
8 0
3 years ago
Read 2 more answers
Other questions:
  • If r⃗ =bt2i^+ct3j^, where b and c are positive constants, when does the velocity vector make an angle of 45.0∘ with the x- and y
    14·1 answer
  • What volume of 0.128 M HCl is needed to neutralize 2.87 G of Mg(OH)2?
    12·1 answer
  • As a gas changes to a solid, energy<br> A. is not used.<br> B. is released.<br> C. is absorbed.
    7·1 answer
  • What is the relationship between the molecular mass and the molar mass of a substance?
    14·1 answer
  • What volume is occupied by 8.7 g of chlorine gas, Cl2, at 23°C and 1.15 atm pressure
    14·1 answer
  • Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt
    7·1 answer
  • For this question use the main assumptions of the Kinetic Molecular Theory of gases: 1. Gases are made up of molecules which are
    12·1 answer
  • What 2 factors determine whether a collision between reactants is effective
    7·1 answer
  • Please help me. It's urgent .
    8·2 answers
  • Which element is the most reactive?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!