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
Studentka2010 [4]
3 years ago
9

Calculate the molar mass of a gas if an 8.06×10(to the power of -2) gram sample of it occupies .0650 L at 547°C and 70.5 kPa​

Chemistry
1 answer:
notsponge [240]3 years ago
5 0

Answer:

                     M.Mass = 120 g/mol

Explanation:

Data Given:

                  Volume = V = 0.0650 L

                  Temperature = T = 547 °C = 820.15 K

                  Pressure = P = 70.5 kPa = 0.695 atm

                  Gas Constant = R = 0.082057 L.atm.mol⁻¹.K⁻¹

Formula Used:

                        Assuming that the gas is ideally then according to ideal gas equation,

                                   P V = n R T

Solving for n,

                                   n = P V / R T

Putting Values,

    n = (0.695 atm × 0.0650 L) ÷ (0.082057 L.atm.mol⁻¹.K⁻¹ × 820.15 K)

    n = 6.71 × 10⁻⁴ moles

Now, Knowing that,

                                  Moles  =  Mass / M.Mass

Or,

                                  M.Mass = Mass / Moles

Putting values,

                                  M.Mass = 8.06 × 10⁻² g / 6.71 × 10⁻⁴ mol

                                  M.Mass = 120 g/mol

You might be interested in
QY
maria [59]

Answer:

A warm shallow sea.

Explanation:

A warm, shallow sea invaded the Big Bend during the Cretaceous Period, some 135 million years ago, providing the setting for deposition of lime mud and the remains of sea-dwelling organisms such as clams and snails. Limestone layers formed from those shallow muds are now visible throughout much of the Big Bend.

7 0
3 years ago
A 30.60 g sample of a substance is initially at 25.6 °c. after absorbing 2811 j of heat, the temperature of the substance is 175
lys-0071 [83]
Okay its like whipping sweetheart it goes cold to hot from liquid to a solid substance so you would need a constant heat
3 0
3 years ago
Part 1: Draw the major organic product for the proton transfer reaction between sodium hydride and ethanol; be sure to include l
valina [46]

Answer:

Major product ethoxide ion

Explanation:

  • Sodium hydride acts as a strong base towards ethanol.
  • Hydride ion abstracts one proton from -OH group in ethanol to produce sodium ethoxide and hydrogen gas.
  • It is an example of acid-base reaction where sodium hydride acts as a base and ethanol acts as an acid
  • Structure of major organic product i.e. ethoxide ion has been shown below.

4 0
3 years ago
An anode is an electrode immersed in the half-cell where _____ takes place.
MrMuchimi
If I'm not mistaken, the answer should be B. Oxidation
5 0
4 years ago
Read 2 more answers
You are looking at two samples of iron. One sample is very small and came from the red soil on the planet Mars. The other sample
aivan3 [116]
The two samples don’t contain different atoms so it will be false
3 0
3 years ago
Other questions:
  • What happens to a solution when you add an acid to
    5·2 answers
  • Discovered in the late 1800s and fundamental to important technological advances of the 20th century, _______ silently transmit
    7·2 answers
  • Which of the following equations are correctly balanced?
    8·1 answer
  • _______ is how strongly gravity pulls on an object
    15·1 answer
  • Pretend you are the size of an atom and you are observing a reaction between a potassium ion and a fluorine atom. Describe how a
    10·2 answers
  • In the periodic table, the period number indicates
    5·1 answer
  • If all people understood the common heritage that we have with the Earth and our environment - namely, that the very atoms that
    12·1 answer
  • If the mass ratio of K to F in a compound is 2.06:1, how many grams of F are needed to react with 101g of K?
    10·1 answer
  • A ______ square is a diagram used to predict all possible allele combinations from a genetic ______. Using this diagram, the phe
    12·2 answers
  • A refrigeration lubricant with a high _____ point may have excessive wax separation, which can clog the system.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!