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
QveST [7]
3 years ago
13

An air sample contains 0.044% CO2? If the total pressure is 750 mm Hg. What is the partial pressure of CO2?2?

Chemistry
1 answer:
Aleksandr [31]3 years ago
8 0
Partial pressure=mole fraction×Pt
x=0.044÷44(maolarmass of CO2)×Pt
x=0.044÷(44)2×Pt
x=5×10^-4×Pt
x=5×10^-4×Pt
where Pt:1atm=760mmHg
xatm=750mmHg
750×1÷760=0.99
now;5×10^-4×099=4.95×10^-4.
Pt=4.95×10^-4
You might be interested in
(b) Why is the heat of sublimation ( ΔH fus ) of a substance greater than its ( ΔHvap ) ?
Ivanshal [37]

This is because solids have less energy than liquids do, hence it takes more energy to excite a solid into its gaseous phase than it does a liquid.

When opposed to merely reducing their separation, from solid to liquid, the energy needed to totally separate the molecules as they move from liquid to gas is substantially higher. The latent heat of vaporization is therefore bigger than the latent heat of fusion for this reason.

<h3>What is heat of sublimation?</h3>

The amount of energy required to change one mole of a substance from its solid to its gaseous state under particular conditions—typically the standard ones—is known as the enthalpy of sublimation or heat of sublimation (STP). A solid's worth is based on its cohesive energy.

<h3>What is heat of vaporization?</h3>

The term "enthalpy of vaporization," which is often referred to as "heat of vaporization" or "heat of evaporation," refers to the amount of energy that must be applied to a liquid substance in order to cause a part of that substance to transform into a gas. Vaporization's enthalpy varies with the pressure at which the transition takes place.

Learn more about heat of sublimation: brainly.com/question/13200793

#SPJ4

The correct question is:

Why heat of the sublimation of a substance is greater than the heat of vaporization?

7 0
1 year ago
Which part of the amino acid helps identify features that differentiate one amino acid from another
Natasha_Volkova [10]
The part of the amino acid which helps to identify features that differentiate one amino acid from another is the SIDE CHAIN OF EACH AMINO ACID.
Amino acids are made up of five basic parts, these are:
1. A central carbon atom
2. A hydrogen atom
3. An amino group
4. A carboxyl group and 
5. A R group, also known as a side chain.
The side chain distinguishes one amino acid from the other; different amino acids have different side chains.
6 0
3 years ago
Instruction
valkas [14]

Answer:

A: object 1

B: object 2

C: object 1

D: object 1

Explanation:

4 0
3 years ago
Read 2 more answers
Predict how many electrons will Li (lithium) most likely be gained or lost
Effectus [21]

Answer:

Lithium will lose about 2 electrons

Making it a cation

4 0
3 years ago
Read 2 more answers
An archaeologist graduate student found a leg bone of a large animal during the building of a new science building. The bone had
Vlad [161]

Answer : The time passed in years is 2.74\times 10^2\text{ years}

Explanation :

Half-life of carbon-14 = 5730 years

First we have to calculate the rate constant, we use the formula :

k=\frac{0.693}{t_{1/2}}

k=\frac{0.693}{5730\text{ years}}

k=1.21\times 10^{-4}\text{ years}^{-1}

Now we have to calculate the time passed.

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  = 1.21\times 10^{-4}\text{ years}^{-1}

t = time passed by the sample  = ?

a = initial amount of the reactant disintegrate = 15.3

a - x = amount left after decay process = 14.8

Now put all the given values in above equation, we get

t=\frac{2.303}{1.21\times 10^{-4}}\log\frac{15.3}{14.8}

t=274.64\text{ years}=2.74\times 10^2\text{ years}

Therefore, the time passed in years is 2.74\times 10^2\text{ years}

4 0
3 years ago
Other questions:
  • help plz Which list is in order from smaller to larger sediment particles? A. sand, silt, clay B. clay, silt, sand C. silt, sand
    14·1 answer
  • If one parent is TT (tall), and the other parent is tt (short). What percentage of the offspring will be short
    15·1 answer
  • Arrange the following elements in order of decreasing atomic radius: Ba, Sn, S, Pb, and As. Rank elements from largest to smalle
    14·1 answer
  • At what pressure would 11.1 moles of a gas occupy 44.8 L at 300 K?
    12·1 answer
  • How can ionic compounds break into pieces?
    12·1 answer
  • When the nuclide carbon-14 undergoes beta decay: The name of the product nuclide is . The symbol for the product nuclide is
    14·1 answer
  • When an atom, ion, or molecule of a reactant switches places with an unpaired reactant, the type of reaction is called _________
    7·1 answer
  • During a chemical reaction, the amount of energy
    6·1 answer
  • Can someone please check my answer?
    10·1 answer
  • Question 12 2 points) Saving Average Speed Were Speed Total Districe value A family from Texas flies to Washington, D.C. in an a
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!