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
Sever21 [200]
3 years ago
9

Perform the following

Chemistry
1 answer:
Sati [7]3 years ago
3 0

Answer:

35.05152

Explanation:

You might be interested in
Describe examples of body language that show that you are actively listening
stellarik [79]

Answer:

Am

Explanation:

4 0
3 years ago
What force is causing The object to eventually stop moving
hichkok12 [17]

Answer:

Hey buddy, here is your answer. Hope it helps you.

Explanation:

The force stopping the object's motion might be an obvious one - the ground! Friction is a force that slows or stops motion. Friction is the resistance to motion created by two objects rubbing against each other (the sled and the snow, for instance). Even air causes friction.

3 0
3 years ago
What is the density of an object that has a mass of 20g and a volume of 10 cc?
Alexxandr [17]
i believe
2 g/mL
good luck!
5 0
3 years ago
A closed system initially containing 1×10^-3 hydrogen 2×10^-3M iodine at 448 degree Celsius and is allowed to reach equilibrium.
GaryK [48]

Answer:

Kc = 50.5

Explanation:

We determine the reaction:

H₂  +  I₂   ⇄   2HI

Initially we have 0.001 molesof H₂

and 0.002 moles of I₂

If we have produced 0.00187 moles of HI in the equilibrium we have to know, how many moles of I₂ and H₂, have reacted.

           H₂     +      I₂      ⇄   2HI

In:     0.001       0.002           -

R:       x                 x                2x

Eq:  0.001-x    0.002-x      0.00187  

x = 0.00187/2 = 9.35×10⁻⁴ moles that have reacted

So in the equilibrium we have:

0.001 - 9.35×10⁻⁴ = 6.5×10⁻⁵  moles of H₂

0.002 - 9.35×10⁻⁴ = 1.065×10⁻³ moles of I₂

Expression for Kc is =  (HI)² / (H₂) . (I₂)

0.00187 ² /  6.5×10⁻⁵ . 1.065×10⁻³ = 50.5

5 0
3 years ago
Question 9
Evgesh-ka [11]

Answer:

0.382 atm

Explanation:

In order to find the pressure, you need to know the moles of carbon dioxide (CO₂) gas. This can be found by multiplying the mass (g) by the molar mass (g/mol) of CO₂. It is important to arrange the conversion in a way that allows for the cancellation of units.

Molar Mass (CO₂): 12.011 g/mol + 2(15.998 g/mol)

Molar Mass (CO₂): 44.007 g/mol

15 grams CO₂               1 mole
----------------------  x  ------------------------  =  0.341 moles CO₂
                                44.007 grams

To find the pressure, you need to use the Ideal Gas Law equation.

PV = nRT

In this equation,

-----> P = pressure (atm)

-----> V = volume (L)

-----> n = moles

-----> R = Ideal Gas Constant (0.08206 atm*L/mol*K)

-----> T = temperature (K)

After you convert Celsius to Kelvin, you can plug the given and calculated values into the equation and simplify to find the pressure.

P = ? atm                              R = 0.08206 atm*L/mol*K

V = 20 L                               T = 0 °C + 273.15 = 273.15 K

n = 0.341 moles

PV = nRT

P(20 L) = (0.341 moles)(0.08206 atm*L/mol*K)(273.15 K)

P(20 L) = 7.64016

P = 0.382 atm

7 0
2 years ago
Other questions:
  • How are the atomic number and the number of protons related to each other? how do the number of protons, number of neutrons, and
    6·1 answer
  • A 5.0 l flask containing o2 at 2.00 atm is connected to a 3.0 l flask containing h2 at 4.00 atm and the gases are allowed to mix
    12·1 answer
  • Wha do u do when u get in a fight wit yo best friend?
    14·2 answers
  • Which element is likely to have the highest thermal conductivity
    15·1 answer
  • If you flip a fair coin 7 times, what is the probability that you will get exactly 2 tails?
    8·2 answers
  • I have a mass of 30 grams and a volume of 60 cm3 what is the density
    15·1 answer
  • how many grams of water can be produced when 65.5 grams of sodium hydroxide react with excess sulfuric acid.
    15·1 answer
  • Elements with atomic numbers 7 and 83 have how many valence electrons? *
    11·1 answer
  • 20 POINTS
    9·1 answer
  • Using the “rule of 8” explain why carbon is the backbone of organic molecules
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!