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
ra1l [238]
3 years ago
12

An ideal gas in a sealed container has an initial volume of 2.80 L. At constant pressure, it is cooled to 18.00 °C, where its

Chemistry
1 answer:
Aleks04 [339]3 years ago
6 0

Answer:

T_1=-91.18\°C

Explanation:

Hello there!

In this case, given the T-V variation, we understand it is possible to apply the Charles' law as shown below:

\frac{T_1}{V_1}= \frac{T_2}{V_2}

Thus, since we are interested in the initial temperature, we can solve for T1, plug in the volumes and use T2 in kelvins:

T_1= \frac{T_2V_1}{V_2}\\\\T_1= \frac{(18.00+273.15)K(1.75L)}{(2.80L)}\\\\T_1=182K-273.15\\\\T_1=-91.18\°C

Best regards!

You might be interested in
Among the intermolecular forces, which forces are typically the weakest?
Ierofanga [76]
Induced-induced interactions
(London forces)
(Dispersion forces)
5 0
3 years ago
Read 2 more answers
(b) Which solution has a higher percent ionization of the acid, a 0.10M solution of HC2H3O2(aq) or a 0.010M solution of HC2H3O2(
boyakko [2]

Answer: The percent ionization is higher for 0.010 M solution of HC_2H_3O_2

Explanation:

HC_2H_3O_2\rightarrow H^+C_2H_3O_2^-

 cM           0M           0M

c-c\alpha        c\alpha          c\alpha  

So dissociation constant will be:

K_a=\frac{(c\alpha)^{2}}{c-c\alpha}

a) Given c= 0.10 M and \alpha = ?

K_a=1.8\times 10^{-5}

Putting in the values we get:

1.8\times 10^{-5}=\frac{(0.10\times \alpha)^2}{(0.10-0.10\times \alpha)}

(\alpha)=0.013

\%(\alpha)=0.013\times 100=1.3\%

b) Given c= 0.010 M and \alpha = ?

K_a=1.8\times 10^{-5}

Putting in the values we get:

1.8\times 10^{-5}=\frac{(0.010\times \alpha)^2}{(0.010-0.010\times \alpha)}

(\alpha)=0.041

\%(\alpha)=0.041\times 100=4.1\%

The percent ionization is higher for 0.010 M solution of HC_2H_3O_2

6 0
3 years ago
At 79.0°C, the volume of a gas is 49.0 L. If the pressure remains constant, at what
PtichkaEL [24]

Answer:

At constant Pressure V /T = constant. sooooo

49 / 79 = 24.5 / T

T = 24.5 × 79/49 = 39.5°C

8 0
3 years ago
1. Which statement is accurate?
valkas [14]

1. Answer:

B) An allele is one form of a gene.

Explanation:

  • <em><u>An allele refers to an alternative form of a gene. In other words it is one of the form of a gene.</u></em>
  • <em><u>A gene may have two alleles, where one of the allele is a dominant allele and the other is a recessive allele. </u></em>
  • A homozygous organisms may be dominant or recessive, a homozygous recessive contains two recessive alleles while a homozygous dominant contains two dominant alleles.
  • A heterozygous organisms contain one dominant allele and one recessive allele.

2. Answer;

B) Alleles

Explanation;

  • <em><u>According to Mendel genes are inherited in pairs of alleles that behave in a dominant and recessive pattern. </u></em>
  • <em><u>Alleles are alternative forms of a gene. </u></em>
  • A gene may have two alleles, where one of the allele is a dominant allele and the other is a recessive allele.
  • A homozygous organisms may be dominant or recessive, a homozygous recessive contains two recessive alleles while a homozygous dominant contains two dominant alleles.
8 0
4 years ago
When water is solid, do molecules move?
BabaBlast [244]

Answer:

Ice is water in its solid form. Ice keeps its shape, even if it's removed from the container. The molecules in ice are locked into place and cannot move or slide past one another, but they do vibrate a little bit.

Explanation:

As the temperature drops or decreases, the water molecules gradually slow down. Eventually they stop moving and simply vibrate back and forth. At this point ice is formed, the solid phase of water. If the temperature is allowed to increase, the molecules will once again begin to vibrate faster and faster.

8 0
3 years ago
Read 2 more answers
Other questions:
  • The reaction 2 NO(g) + Br2(g) equilibrium reaction arrow 2 NOBr(g) has Kp = 109 at 25°C. If the equilibrium partial pressure of
    10·1 answer
  • Terry heats two different masses of substance A to different temperatures, and measures the amounts of both carbon dioxide and w
    7·2 answers
  • ANAL0387: Percent Water in a Hydrate
    11·1 answer
  • 3.
    5·2 answers
  • The diagram above represents the melting of H2O(s). A 2.00mole sample of H2O(s) at 0°C melted, producing H2O(l) at 0°C. Based on
    10·1 answer
  • Air becomes wind as it flows from a. low pressure to low pressure. c. low pressure to high pressure. b. high pressure to high pr
    12·1 answer
  • Mention three sources of light​
    9·1 answer
  • A student uses a variety of techniques to separate four different compounds from 2.10 g of a mixture. After separation of the
    13·1 answer
  • Compare Xavier's cup design with the criteria and constraints given. What parts of Xavier's cup design were successful? What par
    6·1 answer
  • Determine the poh of a 0. 188 m nh3 solution at 25°c. the kb of nh3 is 1. 76 × 10-5.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!