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
leva [86]
3 years ago
11

Which is the ratio of the water vapor actually present in the atmosphere to the amount that would be present if the air were sat

urated at the prevailing temperature and pressure?
Chemistry
1 answer:
Harlamova29_29 [7]3 years ago
4 0

Answer:

The ratio of the water vapor actually present in the air to the amount if the air were saturated is called relative humidity.

Explanation:

The relative humidity allows:

  • To measure the actual amount of moisture in the air at a given temperature, and compares it to the maximum amount of moisture the air can hold at the same temperature (saturation conditions of the air at the specific conditions).
  • Also, is allows to give an idea of the comfort that a specific condition gives. This is, because the comfort level under a specific humidity conditions, depends more on relative humidity than in the actual humidity in the air.

You might be interested in
What is The Domain with four kingdoms or organisms that have cells with nuclei?
Bingel [31]
The domain of Eukarya contains eukaryotes, which are cells with nuclei. 
8 0
3 years ago
A hypothetical element has an atomic weight of 48.68 amu. It consists of three isotopes having masses of 47.00 amu, 48.00 amu, a
Morgarella [4.7K]

Answer : The percent abundance of the heaviest isotope is, 78 %

Explanation :

Average atomic mass of an element is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.

Formula used to calculate average atomic mass follows:

\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i

As we are given that,

Average atomic mass = 48.68 amu

Mass of heaviest-weight isotope = 49.00 amu

Let the percentage abundance of heaviest-weight isotope = x %

Fractional abundance of heaviest-weight isotope = \frac{x}{100}

Mass of lightest-weight isotope = 47.00 amu

Percentage abundance of lightest-weight isotope = 10 %

Fractional abundance of lightest-weight isotope = \frac{10}{100}

Mass of middle-weight isotope = 48.00 amu

Percentage abundance of middle-weight isotope = [100 - (x + 10)] %  = (90 - x) %

Fractional abundance of middle-weight isotope = \frac{(90-x)}{100}

Now put all the given values in above formula, we get:

48.68=[(47.0\times \frac{10}{100})+(48.0\times \frac{(90-x)}{100})+(49.0\times \frac{x}{100})]

x=78\%

Therefore, the percent abundance of the heaviest isotope is, 78 %

5 0
3 years ago
Read 2 more answers
Why do you think moles are important for stoichiometry?
kompoz [17]

Answer:

cuz

Explanation:

4 0
3 years ago
Compound X has a molar mass of 316.25 g*mol^-1 and the following composition:
Leokris [45]

Answer:

Compound X has a molar mass of 316.25 g*mol^-1 and the following composition:

element & mass %

phosphorus & 39.18%

sulfur & 60.82%

Write the molecular formula of X.

Explanation:

The given molecule of phosphorus and sulfur has molar mass --- 316.25 g.

Empirical formula calculation:                      

element:              phosphorus                       sulfur

co9mposition:      39.185%                            60.82%

divide with

atomic mass:          39.185/31.0 g/mol           60.82/32.0g/mol

                              =1.26mol                           1.90mol

smallest mole ratio:   1.26mol/1.26mol =1      1.90mol/1.26 mol =1.50

multiply with 2:          2                                         3

Hence, the empirical formula is:

P2S3.

Mass of empirical formula is:

158.0g/mol

Given, molecule has molar mass --- 316.25 g/mol

Hence, the ratio is:

316.25g/mol/158.0 =2

Hence, the molecular formula of the compound is :

2 x (P2S3)

=P_4S_6

8 0
3 years ago
Which action(s) is/are true of antihistamines? (select all that apply.) test bank?
Sav [38]
The correct answers from the choices are:

a. Reduce inflammation locally
b. Antagonize H1 receptors
c. May be administered orally
<span>d. Are systemically distributed

</span><span>Antihistamines are drugs that are H1 antagonists or blockers, may be administered orally, are distributed systemically, and do not directly reduce nasal congestion.</span>
7 0
3 years ago
Other questions:
  • If horizontal layers of sedimentary rock have a vertical fault running through them, how might a geologist use relative dating t
    10·2 answers
  • There is a "short-cut" to determining the number of valence electrons. how can you determine the number of valence electrons by
    15·1 answer
  • What are the similarities between molecules and elements
    9·1 answer
  • Still need a good answer heterogeneous vs homogeneous, don't copy from web pls.
    13·1 answer
  • When we react a weak acid with a strong base of equal amounts and concentration, the component of the reaction that will have th
    13·1 answer
  • In a laboratory experiment, students synthesized a new compound and found that when 11.01 grams of the compound were dissolved t
    10·1 answer
  • Calculate the value of the equilibrium constant, c, for the reaction
    13·1 answer
  • Help please ! ASAP neeeeeed and answerrrrrr
    10·2 answers
  • Which mineral reacts readily with cool, dilute hydrochloric acid to produce visible bubbles of carbon dioxide gas?.
    7·1 answer
  • Which of the following chemical equations are correctly balanced? Balance the equations that are not balanced.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!