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
chubhunter [2.5K]
3 years ago
14

If 15.0 liters of neon at 25.0 °C is allowed to expand to 25.0 liters, what must the new temperature in Celsius be to maintain c

onstant pressure?
Chemistry
1 answer:
ankoles [38]3 years ago
8 0

Answer:

35

Explanation:

You might be interested in
What are the 5 areas of chemistry
shepuryov [24]
The 5 main branches of chemistry are physics, analytical, biochemistry, organic chemistry, and inorganic chemistry.
7 0
3 years ago
Determine the [h3o+] of a 0.210 m solution of formic acid.
Nataly [62]
When the Pka for formic acid = 3.77
and Pka = -㏒ Ka 
   3.77 = -㏒ Ka
∴Ka = 1.7x10^-4 

when Ka = [H+][HCOO-}/[HCOOH]

when we have Ka = 1.7x10^-4 &[HCOOH] = 0.21 m
so by substitution: by using ICE table value
1.7x10^-4 = X*X / (0.21-X)
(1.7x10^-4)*(0.21-X) = X^2      by solving this equation for X

∴X = 0.0059
∴[H+] = 0.0059
∴PH= -㏒ [H+]
       = -㏒ 0.0059
       = 2.23 

3 0
3 years ago
calculate the number of coulombs of positive charge in 250cm 3 of (neutral) water. (hint: a hydrogen atom contains one proton; a
Sidana [21]

Number of coulombs of positive charge in 250cm^3 water is 1.3×10^7 C

The volume of 250 cm^3 corresponds to a mass of 250 g since the density of water is 1.0 g/cm^3

This mass corresponds to 250/18 = 14 moles since the molar mass of water is 18. There are ten proton (each with charge q = +e) in each molecule of H_{2}O So,

Q = 14NA  q =14(6.02×10^23)(10)(1.60×10^−19C) = 1.3×10^7 C.

Mass is the quantity of matter in a physical body. It is also a measure of the body's inertia, the resistance to acceleration when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies.

Learn more about mass here:

brainly.com/question/17067547

#SPJ4

​

3 0
1 year ago
You are running a lemonade stand with your friend. You prepared 10 liters of 0.7 molarity lemonade, but your friend did online r
mr Goodwill [35]

Answer:

add 7.5L of water

Explanation:

M1×V1=M2×V2

M is molarity, V is volume

0.7 × 10 = 0.4 × V2

V2= 17.5L

vol. of water to add= 17.5 - 10 = 7.5L

7 0
3 years ago
What do nonmetals and metals seek to do when having full outermost shells?
IceJOKER [234]

Answer: C

Explanation:

5 0
2 years ago
Other questions:
  • What is the mass of a sample of iron if that sample lost 2300J of heat energy when it cooled from 80 oC to 30°C? The specific he
    11·1 answer
  • Which of the following polyatomic ions has a 3- ionic charge?
    11·1 answer
  • 0.352 g sample of a diprotic acid is dissolved in water and titrated with 0.150 M NaOH.0.150 M NaOH. What is the molar mass of t
    14·1 answer
  • How do the circulatory and the excretory systems work together to maintain the human body on a daily basis?
    10·1 answer
  • Can you always tell by looking at a substance if it is pure or not? ​
    10·1 answer
  • 15. What are the benefits to having a nuclear power plant nearby?
    7·1 answer
  • How are scented candles made?
    8·2 answers
  • Is anyone else gender fluid and/or bi and have parent who dont accept them? Or anypart of LGBTQ+ honestly?
    14·2 answers
  • Please help me! <br><br> please explain your work
    8·1 answer
  • Hi, I am trying to calculate the dosage of mg i should be taking per night. I am 135 pounds 5’7.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!