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
Alborosie
2 years ago
14

What is the molecular mass of a gas whose density is 1.25 grams per liter at STP?

Chemistry
1 answer:
satela [25.4K]2 years ago
6 0

STP = standard temperature and pressure

Use the formula:

d = MP/RT

where:

d = density = 1.25 g/L

M = molar mass (unknown)

P = pressure = 1 atm (standard pressure)

R = universal gas constant = 0.8206 L*atm/mol*K

T = temperature = 0C or 293.15 K (standard temperature)

1.25 g/L = M*(1 atm)/(0.08206 L*atm/mol*K)*(273.15 K)

M = 28.0 grams/mol

You might be interested in
Someone plz help me !!<br><br> Science <br> Or<br> Bias?
Artist 52 [7]
1st one is Science and the 2nd one is Bias
8 0
3 years ago
Which one is it ? I need help
Lostsunrise [7]
It would 3 because if you read it tells you the answer
8 0
2 years ago
Read 2 more answers
A polar covalent bond will form between which two atoms?
Alex_Xolod [135]

Types of Bonds can be predicted by calculating the difference in electronegativity.

If, Electronegativity difference is,

 

                Less than 0.4 then it is Non Polar Covalent

                

                Between 0.4 and 1.7 then it is Polar Covalent 

            

                Greater than 1.7 then it is Ionic

 

For Be and F,

                    E.N of Fluorine          =   3.98

                    E.N of Beryllium        =   1.57

                                                   ________

                    E.N Difference                2.41          (Ionic Bond)


For H and Cl,

                    E.N of Chorine           =   3.16

                    E.N of Hydrogen        =   2.20

                                                   ________

                    E.N Difference                0.96          (Polar Covalent Bond)


For Na and O,

                    E.N of Oxygen          =   3.44

                    E.N of Sodium          =   0.93

                                                       ________

                    E.N Difference                2.51          (Ionic Bond)


For F and F,

                    E.N of Fluorine          =   3.98

                    E.N of Fluorine          =   3.98

                                                        ________

                    E.N Difference                0.00         (Non-Polar Covalent Bond)

Result:

           A polar covalent bond is formed between Hydrogen and Chlorine atoms.

5 0
3 years ago
1. Cp is smaller than Hx
andreev551 [17]
1 has a higher ionization dismal aoa
8 0
2 years ago
Why will liquids evaporate even at room temperature?
mr Goodwill [35]
<h2>It can happen when liquids are cold or when they are warm. ... It turns out that all liquids can evaporate at room temperature and normal air pressure. Evaporation happens when atoms or molecules escape from the liquid and turn into a vapor. Not all of the molecules in a liquid have the same energy.</h2>
6 0
3 years ago
Other questions:
  • Commercially available hot packs are simple in design: a pouch with water on one side, isolated by a barrier from a specific sal
    7·1 answer
  • Ammonium perchlorate (NH4ClO4) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts with itself to produce nitroge
    12·1 answer
  • The world, 6.83 billion people: Express the following population estimates for the year 2010 in nanomoles of people.
    13·1 answer
  • Complete the table for ion charge based upon their losing or gaining electrons in the outer shell. (Use the periodic table as ne
    8·1 answer
  • Magma can partially crystallize at depth and then rise to shallow depths where the remaining magma solidifies. The early-formed
    12·1 answer
  • How many total atoms are in v2o5
    6·1 answer
  • Where do all of the elements heavier than Hydrogen come from?
    6·1 answer
  • Consider the above reaction. If some CO2 were removed from the container, what would the reaction do in an attempt to replace th
    13·1 answer
  • Which velchie has the greatest acceleration as its enter the highway?
    12·2 answers
  • Nerves impulses _____.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!