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
Maslowich
2 years ago
12

The mass of a quantity of Cl gas (70,906 g/mol) that occupies 50.0L at 27.0°C and 721 mm Hg is:

Chemistry
1 answer:
inessss [21]2 years ago
4 0

We need no of moles

Apply ideal gas equation

  • PV=nRT
  • n=PV/RT
  • n=721(50)/8.314(300)
  • n=14.4mol

So

mass

  • 70.906(14.4)
  • 1021g
You might be interested in
What is mass in g of 22 moles of copper?
galina1969 [7]
The molar mass of copper is 63.55 g/mol
6 0
3 years ago
-
Dovator [93]

Answer:

5 × 10^-4 L

Explanation:

The equation of the reaction is;

2KClO3 = 2KCl + 3O2

Number of moles of KClO3 = 13.5g/122.5 g / mol = 0.11 moles

From the stoichiometry of the reaction;

2 moles of KClO3 yields 3 moles of O2

0.11 moles of KClO3 yields 0.11 × 3/2 = 0.165 moles of oxygen gas

From the ideal gas equation;

PV= nRT

P= 85.4 × 10^4 KPa

V=?

n= 0.165

R= 8.314 J K-1 mol-1

T= 40+273 = 313K

V= 0.165 ×8.134 × 313/85.4 × 10^4

V=429.4/85.4 × 10^4

V= 5 × 10^-4 L

3 0
3 years ago
What is true when an element is oxidized? It bonds with the hydroxide ion. It loses electrons to another element. It reacts with
Mama L [17]

Answer: It loses electrons to another element.

Explanation:- Oxidation is the process in which an element loses electrons and there is an increase in the oxidation state. On losing electrons it combines with a electronegative element such as oxygen, sulphur or nitrogen etc.

Fe\rightarrow Fe^{2+}+2e^-

Reduction is the process in which an element gains electrons and there is a decrease in the oxidation state.

\frac{1}{2}O_2+2e^-\rightarrow O^{2-}

8 0
3 years ago
What is a neutralisation reaction? Give two examples.
ozzi

Explanation:

A neutralization is a type of double replacement reaction. a salt is the product of an acid-base reaction and is a much broader term then common table salt.

Example:-

(i) HCl + NaOH ---> NaCl + HOH

(ii) H2SO4 + 2NH4OH ---> (NH4)2SO4 + 2HOH.

7 0
3 years ago
How many elements and atoms are in marble
DochEvi [55]

Answer:

Explanation:

Scientists know that there are 6x1023 molecules in a mole - so we have about 0.5x1023 molecules in our marble…and since every silicon dioxide molecule has one atom of silicon and two of oxygen, we have a grand total of 1.5x1023 atoms. That's 150,000,000,000,000,000,000,000 atoms

7 0
3 years ago
Other questions:
  • The Dome of the Rock and Al-Aqsa Mosque are located in what city?
    15·2 answers
  • Which of the following is an example of a good conductor of electrons A. glass B. pure metal C. Dry glasses D. All of the above
    6·2 answers
  • This reaction is sometimes used to inflate life rafts, weather balloons, and the like, where a simple, compact means of generati
    15·1 answer
  • Which of these provides the BEST evidence that the distribution of Earth’s oceans has changed over time?
    12·1 answer
  • What is the net ionic equation for the precipitation reaction between BaCl2 and Na2So4? I know the answer ( Ba2+(aq) + SO42-(aq)
    9·1 answer
  • A distinct molecular species that is formed in one step of a reaction mechanism and then reacts in a subsequent step is called
    12·1 answer
  • -The picture goes to Activity 2
    14·2 answers
  • Please help me thanks so much?!?!
    14·2 answers
  • 23g of of sodium reacted with 35.5g of chlorine. calculate the mass of the sodium chloride compound formed
    11·1 answer
  • How many moles of ammonium ions are in 125 mL of 1.40 M NH4NO3 solution? ________ moles (give answer with correct sig figs in un
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!