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
guajiro [1.7K]
3 years ago
11

A sample of oxygen gas has a volume of 205 cm cubed when its temperature is 22.0 degrees C and its pressure is 30.8 kPa. What vo

lume will the gas occupy at STP?
Chemistry
1 answer:
hammer [34]3 years ago
7 0

Answer:

V2 = 57.67cm3

Explanation:

From the question

P1= 30.8, V1=205cm3, T1= 22+273=295K, P2=101.325kPa, T2= 273K, V2= ?

Applying

P1V1/T1= P2V2/T2

Substitute and simplify

(30.8*205)/295 = (101.325*V2)/273

V2= 57.67cm3

You might be interested in
Nitric oxide is formed in automobile exhaust when nitrogen and oxygen in air react at high temperatures.N2(g) + O2(g) 2NO(g)The
yanalaym [24]

Answer : The correct option is, (E) 7.8 atm

Explanation :

The partial pressure of N_2 = 8.00 atm

The partial pressure of O_2 = 5.00 atm

K_p = 0.0025

The balanced equilibrium reaction is,

                               N_2(g)+O_2(g)\rightleftharpoons 2NO(g)

Initial pressure     8.00      5.00            0

At eqm.               (8.00-x) (5.00-x)        2x

The expression of equilibrium constant K_p for the reaction will be:

K_p=\frac{(p_{NO})^2}{(p_{N_2})(p_{O_2})}

Now put all the values in this expression, we get :

0.0025=\frac{(2x)^2}{(8.00-x)\times (5.00-x)}

By solving the terms, we get:

x=0.15atm

The equilibrium partial pressure of N_2 = (8.00 - x) = (8.00 - 0.15) = 7.8 atm

Therefore, the equilibrium partial pressure of N_2 is 7.8 atm.

3 0
3 years ago
Identify a chemical reagent that can be used to distinguish solid CaCl2 from CaCO3
jenyasd209 [6]
<span>The words you seek are soluble and insoluble.The chemical you want is an acid. Add an acid (acetic acid or hydrochloric acid) and the CaCO3 will fizz but CaCl2 will not</span>
3 0
2 years ago
How is energy transferred during convection?
Natalija [7]

The field of energy is wide and interesting due to it can be expressed by differents way.

The thermal energy is associated like internal energy of the atoms or molecules of a substance.  The transfer of thermal energy as heat can take place via convection.

Convection via is the transfer of thermal energy due to the motion of the substance that contains the thermal energy.  

4 0
2 years ago
Read 2 more answers
Please help!!
antiseptic1488 [7]

Answer:

Explanation:

Scientific laws or laws of science are statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena.[1] The term law has diverse usage in many cases (approximate, accurate, broad, or narrow) across all fields of natural science (physics, chemistry, astronomy, geoscience, biology). Laws are developed from data and can be further developed through mathematics; in all cases they are directly or indirectly based on empirical evidence. It is generally understood that they implicitly reflect, though they do not explicitly assert, causal relationships fundamental to reality, and are discovered rather than invented.[2]

4 0
3 years ago
Which of the following is an important application of hydrogen bonding
Andrews [41]

Hydrogen bonding is important because it is crucial to all life on Earth. Here are three reasons why hydrogen bonding is important. DNA has a double-helix structure because hydrogen bonds hold together the base pairs in the middle. Without hydrogen bonds, DNA would have to exist as a different structure.

6 0
2 years ago
Read 2 more answers
Other questions:
  • Determine the temperature of 1.42 mol of a gas contained in a 3.00-L container at a pressure of 123 kPa.
    11·1 answer
  • What are the products of this chemical equation? HCl(aq) + NaOH(aq) → NaCl(aq) + H2(g) + O2(g) NaH(aq) + Cl2(aq) + H2(g) + O2(g)
    11·2 answers
  • Calculate the volume of 0.200 m cacl2 needed to produce 2.00 g of caco
    6·1 answer
  • In which layer of earth do most earthauakes occur
    6·1 answer
  • Each of the identical volumetric flasks contains the same solution at two different temperatures. There are two identical volume
    7·1 answer
  • PLEASE HELPPP MEEEE
    12·2 answers
  • The element lead (Pb) consists of four naturally occurring isotopes with atomic masses 203.97302,205.97444,206.97587, and 207.97
    12·1 answer
  • Which of the following correctly identifies the number of each element involved in the chemical formulas
    8·1 answer
  • Imagine that you are in chemistry lab and need to make 1.00 L of a solution with a pH of 2.60.
    7·1 answer
  • How many atoms in:
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!