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
Ksenya-84 [330]
3 years ago
13

< Question 3 of 25

Chemistry
1 answer:
Nonamiya [84]3 years ago
5 0
The answer is 360ms I hope this helps
You might be interested in
In cars, ethylene glycol, C2H6O2, is used as a coolant and antifreeze. A mechanic fills a radiator with 7.1 kg of ethylene glyco
WITCHER [35]
Based on the given molecular formula, the molar mass of ethylene glycol is 62 g/mol. We solve for the number of moles of the solute,
                                   n = (7.1 kg)(1000 g/ 1 kg) / 62g/mol  = 114.52 mol
Then, we divide this value by the given mass of the water in kg
                             m = (114.52 mol) / 1.2 kg = 95.43 m
Thus, the molality of the substance is approximately equal to 95.43 m. 
5 0
3 years ago
Read 2 more answers
Whats the darn answer you nimbisol
siniylev [52]
The darn answer u nimbisol is the opposite
6 0
3 years ago
a student is asked to prepare 75.0 ml of a 130M solution of HF using a 2.000M standard solution. Calculate the volume in mL of 2
Blizzard [7]

Answer:

Volume required from standard solution = 4675 mL

Explanation:

Given data:

Final volume = 75.0 mL

Final molarity = 130 M

Molarity of standard solution = 2.000 M

Volume required from standard solution = ?

Solution:

We use the formula,

C₁V₁ = C₂V₂

here,

C₁ = Molarity of standard solution

V₁ = Volume required from standard solution

C₂ = Final molarity

V₂ = Final volume

Now we will put the values in formula,

C₁V₁ = C₂V₂

2.000 M × V₁ = 130 M × 75.0 mL

V₁  = 9750 M. mL / 2.000 M

V₁  = 4675 mL

5 0
4 years ago
3. At 35 C, a sample of gas has a volume of 256 ml and a pressure of 720.torr. What would the volume
STatiana [176]

Answer:

The volume will be 185.83 mL.

Explanation:

Gay-Lussac's law indicates that when there is a constant volume, as the temperature increases, the pressure of the gas increases. And when the temperature is decreased, the pressure of the gas decreases. Gay-Lussac's law can be expressed mathematically as follows:

\frac{P}{T} =k

Where P = pressure, T = temperature, k = Constant

Boyle's law says that the volume occupied by a given gaseous mass at constant temperature is inversely proportional to pressure. Boyle's law is expressed mathematically as:

P*V=k

Where P = pressure, V = volume, k = Constant

Finally, Charles's Law consists of the relationship that exists between the volume and the temperature of a certain quantity of ideal gas, which is kept at a constant pressure. For a given sum of gas at a constant pressure, as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases because the temperature is directly related to the energy of the movement of the gas molecules. .

In summary, Charles's law is a law that says that when the amount of gas and pressure are kept constant, the quotient that exists between the volume and the temperature will always have the same value:

\frac{V}{T} =k

Combined law equation is the combination of three gas laws called Boyle's, Charlie's and Gay-Lusac's law:

\frac{P*V}{T} =k

Studying two different states, an initial state 1 and a final state 2, it is satisfied:

\frac{P1*V1}{T1} =\frac{P2*V2}{T2}

In this case:

  • P1= 720 torr
  • V1= 256 mL
  • T1= 35 C= 308 K (being 0 C= 273 K)
  • P2= 1.25 atm= 950 torr (being 1 atm= 760 torr)
  • V2= ?
  • T2= 22 C= 295 K

Replacing:

\frac{720 torr*256 mL}{308 K} =\frac{950 torr*V2}{295 K}

Solving:

V2= \frac{295K}{950 torr} *\frac{720 torr*256 mL}{308 K}

V2= 185.83 mL

<u><em>The volume will be 185.83 mL.</em></u>

6 0
3 years ago
Which best describes valence electrons?
AfilCa [17]
A possibily I’m not 100% sure
4 0
3 years ago
Read 2 more answers
Other questions:
  • Why is a solution not a pure substance?
    9·1 answer
  • Which factor most directly affects potential energy?
    5·1 answer
  • How does the number of elements that are metals compared with the number of elements that are non-metals?
    11·1 answer
  • For part one synthesis reactions The product of the reaction is MgO. Describe what you observed in the reaction then consider th
    6·1 answer
  • How do the resonance structures for ozone, 03, differ?
    11·1 answer
  • Which change will decrease the number of effective collisions during a chemical reaction?
    10·1 answer
  • What is the main material for b horizon
    11·1 answer
  • What is Keq for the reaction 2HCl(9) = H2(g) + Cl2(g)?
    9·1 answer
  • Help me with questions 1-8. here's the link to the textbook
    13·1 answer
  • Will give lots of points if answered correctly. Determine the kb for chloroform when 0.793 moles of solute in 0.758 kg changes t
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!