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
Mandarinka [93]
2 years ago
8

How many liters of oxygen gas, at STP, are produced by the decomposition of 0.605 moles of potassium chlorate? 2KClO3 ➞ 2KCl + 3

O2
Chemistry
1 answer:
grigory [225]2 years ago
6 0

Answer:

19 dollar fortnite card who wants it

Explanation:

and yes it is free

You might be interested in
What happens to concrete when it's no longer needed
Sveta_85 [38]
Did you mean when it is a liquid?
8 0
2 years ago
Which of the following characteristics must be present for a substance to be called a mineral?
MArishka [77]
Minerals are solid, naturally occurring, inorganic compounds that possess an orderly internal structure and a regular chemical composition. Minerals should occur naturally. Hope this answers the question. Have a nice day. Feel free to ask more questions.
4 0
2 years ago
Read 2 more answers
Whats two answers I know B is wrong
JulijaS [17]

Answer:A and D

Explanation:

6 0
2 years ago
Read 2 more answers
A soft silvery metal has two naturally occurring isotopes: mass 84.9118, accounting for 72.15% and mass 86.9092, accounting for
zloy xaker [14]

Answer: The atomic weight of the metal would be 85.47.

Explanation:

Mass of isotope 1 of metal = 84.9118

% abundance of isotope 1 of metal = 72.15% = \frac{72.15}{100}

Mass of isotope 2 of metal= 86.9092

% abundance of isotope 2 of metal = 27.85% = \frac{27.85}{100}

Formula used for average atomic mass of an element :

\text{ Average atomic mass of an element}=\sum(\text{atomic mass of an isotopes}\times {{\text { fractional abundance}})

A=\sum[(84.9118)\times \frac{72.15}{100})+(86.9092)\times \frac{27.85}{100}]]

A=85.47

Therefore, the atomic weight of the metal would be 85.47.

6 0
3 years ago
A chemist determines by measurements that 0.0550 moles of nitrogen gas participate in a chemical reaction. Calculate the mass of
shtirl [24]

The mass of nitrogen gas that participated in the chemical reaction is 1.54g

HOW TO CALCULATE MASS OF AN ELEMENT:

  • Mass of a substance can be calculated by multiplying the number of moles in mol of the substance by its molecular mass in g/mol. That is;

  • mass (M) = molar mass (MM) × number of moles (n)

According to this question, a chemist determines by measurements that 0.0550 moles of nitrogen gas (N2) participate in a chemical reaction.

  • The molecular mass of nitrogen gas (N2) = 14.01(2)

= 28.02g/mol

Hence, the mass of the nitrogen gas that participated in the chemical reaction is calculated as follows:

  • Mass (g) = 0.0550 mol × 28.02 g/mol

  • Mass = 1.5411

Therefore, the mass of nitrogen gas that participated in the chemical reaction is 1.54g

Learn more: brainly.com/question/18269198

6 0
2 years ago
Other questions:
  • At a certain temperature, the reaction 2NO + Cl2 ⇌ 2NOCl has an equilibrium constant Kc of 45.0. A chemist creates a mixture wit
    5·1 answer
  • Write a balanced equation to show the reaction of sulfurous acid with caesium hydroxide to form water and caesium sulfite.
    13·1 answer
  • A new object has been discovered in the solar system. In your own words, justify how the object can be proved to be a planet. (5
    13·2 answers
  • A mass spectrometer has determined the mass and abundances of all isotopes of an unknown element. The first isotope has a mass o
    5·1 answer
  • Six Carnot engines operating between different hot and cold reservoirs are described below. The heat energy transferred to the g
    13·1 answer
  • Which of the changes are physical changes
    10·1 answer
  • During the process of sublimation,
    8·1 answer
  • Which of the following is true of oxygen?
    12·1 answer
  • Which of these can be used as an inert electrode?<br> copper<br> platinum<br> silver<br> zinc
    8·2 answers
  • Explain how the fire spreading from tree to tree provides a model for conduction.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!