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
IgorC [24]
3 years ago
14

Nitrous oxide (N2O) is used as an anesthetic (laughing gas) and in aerosol cans to produce whipped cream. It is also a potent gr

eenhouse gas. The decomposition of N2O is first order. It decomposes slowly to N2 and O2:
2 N2O(g) --> 2 N2(g) + O2(g)

How many half-lives will it take for the concentration of the N20 to reach 3.13% of its original concentration?
Chemistry
1 answer:
scZoUnD [109]3 years ago
3 0

Answer:

five half lives

Explanation:

Half-life is the time required for a quantity to reduce to half of its initial value.

How many half lives it would take to reach 3.13% form 100% of it's initial concentration:

100% - 50% : First Half life

50% - 25%: Second Half life

25% - 12.5%: Third Half life

12.5% - 6.25%: Fourth Half life

6.25% - 3.125%: Fifth Half life

This means it would take five half lives to get to 3.125% (≈ 3.13%) of it's original concentration.

You might be interested in
25.00 gal/min to L/s, Express your answer using four significant figures.
PtichkaEL [24]
Hope this helps you..

6 0
3 years ago
A certain compound is made up of one phosphorus (P) atom, three chlorine (Cl) atoms, and one oxygen (O) atom. What is the chemic
yulyashka [42]

Answer: PCl₃O

Explanation:

1) The chemical formula tells the composition of a compound in terms of the ratio of number of atoms of each element that consitutes such compound.

2) You use the chemical symbol for each kind of atom (element) and subscripts to the right of each symbol to tell the number of atoms of each element.

3) For example, O₂ means two atoms of oxygen. Al₂O₃ means two atoms of aluminum and 3 atoms of oxygen.

4) Therefore, PCl₃O means a ratio 1 : 3 : 1 for phosphorus, chlorine, and oxygen.

Hence, PCl₃O is the chemical formula of your compound.

3 0
3 years ago
Read 2 more answers
The variables _______ and ________ affect the gravitational force between objects.
anastassius [24]
I think the answer is A
5 0
3 years ago
Read 2 more answers
A steam engine (assume a Carnot engine ) has an efficiency of 50.8%. If the waste heat has a temperature of 72.4 ◦C, what is the
Inessa05 [86]

Answer:

The temperature of the boiler is approximately 147.1 °C

Explanation:

A Carnot engine is an ideal engine that has the highest efficiency among all the engines because the second law of thermodynamics.That efficiency \eta  is:

\eta=1-\frac{T_{c}}{T_{h}}

with T_{h} the temperature of the hot reservoir (the boiler temperature) and T_{c} the temperature of the cold reservoir (the steam temperature). Solving for T_{h}:

T_{h}=\frac{-T_{c}}{\eta-1}=\frac{-72.4}{0.508-1}\approx147.1\,C

3 0
3 years ago
Based on the observations of how the different forms of salt start mixing with the
zimovet [89]
I would expect fine salt to fully dissolve by the end of 45 minutes. Since the other types of salt are not fine and tiny, they would take longer to dissolve
7 0
3 years ago
Read 2 more answers
Other questions:
  • Urine, with a ph of 6, is _________ times more acidic than seawater, with a ph of 8.?
    14·1 answer
  • 1. Mountains are most likely formed
    10·1 answer
  • What is the mass number for an atom with 5 protons 6 neutrons and 5 electrons
    10·1 answer
  • Which structure diagram completes the table of physical structures of the main functional groups?
    5·2 answers
  • Why is water an extraordinary substance!
    9·1 answer
  • A sample of nitric acid has a mass of 8.2g. It is dissolved in 1L of water. A 25mL aliquot of this acid is titrated with NaOH. T
    15·1 answer
  • 17. Overall the drop in reduction potential from NADH to water is equivalent to the energy needed to synthesize six or seven mol
    12·1 answer
  • HELPPPPPPPPPPPPP ME PLSSSSSSSSSSS
    7·1 answer
  • STP refers to:
    8·1 answer
  • To prepare a lab solution a chemist dissolves solid potassium chloride in a given
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!