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
Gre4nikov [31]
3 years ago
12

If the pressure of a gas is 100 kPa when the volume is measured to be 500 mL. What pressure would need to be exerted to have the

balloon occupy a volume of 400 mL?
Chemistry
1 answer:
Korvikt [17]3 years ago
8 0

Answer:

p2=125 kpa

Explanation:

Using Boyle's law

p1 x v1 = p2 x v2

p1=100kpa

v1=500ml

p2=?

v2=400ml

p2= (100x500)\400

p2=125 kpa

:)

You might be interested in
What is true of all mass and volume of all floating objects
GarryVolchara [31]
If the density is higher than water than the object will sink
5 0
3 years ago
Read 2 more answers
2NO(g) N2(g) + O2(g); Keq = 2.1 × 1030 What does the value of the equilibrium constant indicate?
olga_2 [115]
The equilibrium constant is a value which represents the equilibrium of a reaction. It is a reaction quotient when the reaction reached equilibrium. If Keq is greater than 1, the mixture contains mostly the products. On the other hand, if Keq is less than 1, the mixture contains the reactants. For this case, the mixture contains mostly products.
7 0
3 years ago
If the molecular weight of a semiconductor is 27.9 grams/mole and the diamond lattice constant is 0.503 nm, what is the density
adelina 88 [10]

Explanation:

The given data is as follows.

      Mass = 27.9 g/mol

As we know that according to Avogadro's number there are 6.023 \times 10^{26} atom present in 1 mole. Therefore, weight of 1 atom will be as follows.

            1 atoms weight = \frac{38}{6.023 \times 10^{26}}    

In a diamond cubic cell, the number of atoms are 8. So, n = 8 for diamond cubic cell.

Therefore, total weight of atoms in a unit cell will be as follows.

            = \frac{8 \times 27.9 g/mol}{6.023 \times 10^{26}}

            = 37.06 \times 10^{-26}

Now, we will calculate the volume of a lattice with lattice constant 'a' (cubic diamond) as follows.

                   = a^{3}

                   = (0.503 \times 10^{-9})^{3}

                   = 0.127 \times 10^{-27} m^{3}

Formula to calculate density of diamond cell is as follows.

               Density = \frac{mass}{volume}

                             = \frac{37.06 \times 10^{-26}}{0.127 \times 10^{-27} m^{3}}

                            = 2918.1 g/m^{3}

or,                         = 0.0029 g/cc       (as 1 m^{3} = 10^{6} cm^{3})

Thus, we can conclude that density of given semiconductor in grams/cc is 0.0029 g/cc.

4 0
3 years ago
Thirsty Thursday:) post your celebrity crush <br> Or post your favorite drink :)
Nata [24]

Answer:

My celebrity crush is young Keanu Reeves and my favorite drink is matcha tea

Explanation:

7 0
3 years ago
What happens in nuclear decay?
NARA [144]

Answer:

Nuclear decay occurs when the nucleus of an atom is unstable and spontaneously emits energy in the form of radiation. The result is that the nucleus changes into the nucleus of one or more other elements. These daughter nuclei have a lower mass and are more stable (lower in energy) than the parent nucleus...

5 0
3 years ago
Other questions:
  • Based on its location on the periodic table, which element would be most likely to form a negative ion?
    13·2 answers
  • Calculate the molecular weights for NH3 and SF6.
    8·1 answer
  • Please help me with this and explain! Thank you so much. Best answer gets Brainliest &lt;3
    13·1 answer
  • Peptides can be separated using an ion-exchange column based on their isoelectric (pl) values. At which pH values would two diff
    6·1 answer
  • Which of these is an extensive property?
    14·1 answer
  • Why is it important to know which category of microorganism has caused an infection?
    6·2 answers
  • is there a relationship between the relative age of stars in the number/identity of element is found within them
    13·1 answer
  • 12 moles of sodium into grams
    5·1 answer
  • 4Hg(OH)2+ H3PO4 —&gt; Hg3(PO4)2 + 5H20
    9·1 answer
  • Question 1 of 25<br> Which sentence describes energy?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!