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
Tpy6a [65]
3 years ago
12

What is the molar mass of an unknown hydrocarbon whose density is measured to be 1.97 g/l at stp?

Chemistry
2 answers:
notka56 [123]3 years ago
8 0

Answer:

The correct answer is

M = 44.1 g / mol

Explanation:

Hello!

Let's solve this!

First we write down the data

d: 1.97 g / L

P: 1 atm

R: 0.082 atmL / Kmol

T: 273K

From the ideal gas formula:

d = P * M / R * T

We cleared M to know the molar mass.

M = (d * R * T) / P

M = (1.97 g / L * 0.082 atmL / Kmol * 273K) / 1atm

The correct answer is

M = 44.1 g / mol

inessss [21]3 years ago
5 0

Answer:   The correct answer is :  44.1  g / mol

Explanation:    d  =  PM / RT

                         M  =  dRT / P

d = 1.97 g / l

R = ideal gas (0.082 06 l - atm / mol - ° K)

P = 1 atm

T = 273 ° K

M = Molar mass

M = 1.97 g / l  x  0.082 l - atm / mol - ° K   x  273 ° K / 1 atm

M =  44.1 g / mol

You might be interested in
Based on Charles's law, which of the following statements is true for an ideal gas at a constant pressure and mole amount?
grandymaker [24]

Answer:

Volume is directly proportional to absolute temperature.

Explanation:

5 0
3 years ago
Breeder reactors are used to convert the nonfissionable nuclide U-238 to a fissionable product. Neutron capture by the U-238 is
m_a_m_a [10]

Answer:

Pu-239

Explanation:

Beta decay moves the element which undergoes the decay one place to the right in the periodic table since to conserve charge and being beta radiations an  electron we convert a neutron into a proton and an electron. In neutron capture we increase the atomic mas by one unit. We that in mind, lets solve the question:

U-238 + ₁⁰ n ⇒ U-239 ⇒ Np -239 +  ₋₁⁰β ⇒ Pu-239 +  ₋₁⁰β

7 0
3 years ago
Compare the values of the spin quantum number for two electrons in the same orbital
Leokris [45]
If there are 2 electrons in the same orbital, the spin numbers would be different for both of these 2 electrons. One would have an up spin and the other a down spin.
3 0
3 years ago
A centrifuge was used to separate a sample into its components. What conclusion about the sample can be formed based on the tech
Komok [63]

Its Homogenous Centrifuges are used to speed up the process of separating Homogeneous mixtures.

8 0
3 years ago
Read 2 more answers
It has been proposed that North America is moving west 2cm per year. How many kilometers would it move in 5,000 years?
vazorg [7]

The answer is .1 kilometers because 2 times 5,000 equals 10,000 cm.

hope this helps

7 0
3 years ago
Other questions:
  • A flexible container at an initial volume of 6.13 L contains 6.51 mol of gas. More gas is then added to the container until it r
    7·1 answer
  • Number one, it's probably a really easy question but it confused me
    13·1 answer
  • For the following reaction, identify the limiting reactant and calculate the grams of product produced when 25.0 grams of the fi
    10·1 answer
  • A group of students want to see how temperature affects the time spilled water to dry up what will be independent and dependent
    12·1 answer
  • If 120 g of NaOH is dissolved in 2.5 L of water, what is the molarity of the solution?
    7·1 answer
  • 6.) 50.0 mol H2O<br> ? molecules
    13·1 answer
  • Number 5 plsssssssss
    12·1 answer
  • Which represents the balanced nuclear equation for the beta minus decay of Co-60?​
    5·1 answer
  • Help what is a b c please I want help this my quiz quick
    12·1 answer
  • Aspirin is the common name for acetyl salicylic acid, C9H8O4. One tablet contains 0. 325 g of aspirin. How many moles of aspirin
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!