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
LenKa [72]
3 years ago
14

When 3.51 g of phosphorus was burned in chlorine, the product was a phosphorus chloride. Its vapor took 1.77 times as long to ef

fuse as the same amount of CO2 under the same conditions of temperature and pressure. What is the molar mass of the phosphorus chloride
Chemistry
1 answer:
kumpel [21]3 years ago
5 0

Answer:

<em>molar mass of the phosphorus chloride = 138.06 g/mol</em>

<em></em>

Explanation:

<em>mass of phosphorus will be the same as mass of CO2, since it is stated that they are of equal amount.</em>

mass = 3.51 g

<em>lets assume that it took the CO2 1 sec to effuse, then the time taken by the phosphorus chloride will be 1.77 sec</em>

From this we can say that

rate of effusion of CO2 = 3.51/1 = 3.51 g/s

rate of effusion of the phosphorus chloride = 3.51/1.77 = 1.98 g/s

<em>From graham's equation of effusion</em>,

\frac{Rc}{Rp} = \sqrt{\frac{Mp\\}{Mc} }

Rc = rate of effusion of CO2 = 3.51 g/s

Rp = rate of effusion of phosphorus chloride = 1.98 g/s

Mc = molar mass of CO2 = 44.01 g/mol

Mp = molar mass of the phosphorus chloride = ?

Imputing values into the equation, we have

\frac{3.51}{1.98} = \sqrt{\frac{Mp\\}{44.01} }

1.77 = \frac{\sqrt{Mp} }{6.64}

11.75 = \sqrt{Mp}

Mp = 11.75^{2}

Mp = <em>molar mass of the phosphorus chloride = 138.06 g/mol</em>

You might be interested in
Which of these pairs of elements have the same number of valence electrons
erastovalidia [21]
Beryllium (Be) and Calcium (Ca)
6 0
3 years ago
What are the products of the chemical reaction that occurs when zinc metal is added to an aqueous solution of hydrochloric acid?
Alinara [238K]
Zn(s) +2 HCl(aq) ---> ZnCl2(aq) +H2(g) (products are Zinc chloride and hydrogen gas)
3 0
3 years ago
What is the relationship between the word pairs in this analogy? dull: boring as amusing: entertaining O A. Synonyms O B. Antony
leva [86]

Answer:

A: Synonyms

Explanation:

Synonyms are two words that have same meaning but are different words (tell me if this works!)

8 0
3 years ago
Read 2 more answers
Explain why vanadium (radius=134 pm) and copper (radius=128 pm) have nearly identical atomic radii, even though the atomic numbe
Viktor [21]
<span>There are few main factors affecting the atomic radii, the outermost electrons and the protons in the nucleus and also the shielding of the internal electrons. I would speculate that the difference in radii is given by the electron clouds since the electrons difference in these two elements is in the d orbital and both has at least 1 electron in the 4s (this 4s electron is the outermost electron in all the transition metals of this period). The atomic radio will be mostly dependent of these 4s electrons than in the d electrons. Besides that, you can see that increasing the atomic number will increase the number of protons in the nucleus decreasing the ratio of the atoms along a period. The Cu is an exception and will accommodate one of the 4s electrons in the p orbital.

</span><span>Regarding the density you can find the density of Cu = 8.96g/cm3 and vanadium = 6.0g/cm3. This also correlates with the idea that if these two atoms have similar volume and one has more mass (more protons;  density is the relationship between m/V), then a bigger mass for a similar volume will result in a bigger density.</span>
7 0
3 years ago
Kendra conducts an experiment. She mixes two chemicals, resulting in a chemical reaction. Based on Kendra's
kondaur [170]

Answer: It changed in identity and properties.

Explanation:

3 0
3 years ago
Other questions:
  • Which of the following does NOT state what the arrow means in a chemical equation? a. produces b. yields c. forms d. conserves
    5·2 answers
  • In general, life needs to maintain a pH level between<br> 01-4<br> 5-8<br> 9-14
    11·1 answer
  • Ms. Crawford gave the following instructions to her science class:
    10·2 answers
  • Balancing chemical reactions is consistent with which scientific law?
    6·1 answer
  • Which substance can not be broken down by a chemical change?(1) ammonia (2) methanol (3) propane (4) phosphorous
    5·2 answers
  • What volume of the 5.00% (w/v) citrie acid solution described above would be needed to provide 738 mg citric acid for a reaction
    10·1 answer
  • A nuclear magnetic resonance, or NMR, spectrometer is an instrument that can be used to characterize molecules based upon the ex
    11·1 answer
  • Which of the following statements is true about atoms?
    7·1 answer
  • The temperature at which a solid melts is the same as the temperature at which its liquid form solidifies (true or false)​
    5·2 answers
  • What will happen when a wax candle burned in air with limited oxygen?​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!