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
Pepsi [2]
2 years ago
8

How many grams of P3O9 contain 9.67x10^23 atoms of oxygen?​

Chemistry
1 answer:
Kobotan [32]2 years ago
6 0

Answer:

49.1 g

Explanation:

First we <u>convert 9.67x10²³ atoms of oxygen into moles</u>, using <em>Avogadro's number</em>:

  • 9.67x10²³ atoms ÷ 6.023x10²³ atoms/mol = 1.60 mol O

Then we <u>calculate how many P₃O₉ moles there would be with 1.60 O moles</u>:

  • 1.60 mol O * \frac{1molP_3O_9}{9molO} = 0.18 mol P₃O₉

Finally we convert 0.18 P₃O₉ moles into grams, using its molar mass:

  • 0.18 mol P₃O₉ * 237 g/mol = 49.1 g
You might be interested in
Answer and work for this problem
MArishka [77]
We can write the balanced equation for the synthesis reaction as 
     H2(g) + Cl2(g) → 2HCl(g)

We use the molar masses of hydrogen chloride gas HCl and hydrogen gas H2 to calculate for the mass of hydrogen gas H2 needed:
     mass of H2 = 146.4 g HCl *(1 mol HCl / 36.46 g HCl) * (1 mol H2 / 2 mol HCl) * 
                           (2.02 g H2 / 1 mol H2)                        
                        = 4.056 g H2

We also use the molar masses of hydrogen chloride gas HCl and chlorine gas CL2 to calculate for the mass of hydrogen gas H2:
     mass of CL2 = 146.4 g HCl *(1 mol HCl / 36.46 g HCl) * (1 mol Cl2 / 2 mol HCl) *
                             (70.91 g Cl2 / 1 mol Cl2)
                          = 142.4 g Cl2 

Therefore, we need 4.056 grams of hydrogen gas and 142.4 grams of chlorine gas to produce 146.4 grams of hydrogen chloride gas.
6 0
3 years ago
Can the work output of an engine be greater than the source of energy.
Arlecino [84]

Answer:

no

Explanation:

the output can never be greater than the input

3 0
2 years ago
When a phasor-domain circuit has dependent sources, you should not use a sequence of source transforms to find the thévenin and
Ierofanga [76]
Yes but the answer is A

4 0
3 years ago
What gives the gem amethyst its purplish color?
Semenov [28]
The question is asking us to determine what gives the Amethyst its purplish color. Amethyst colors range from light to dark purple. The most highly regarded are the transparent deep purple colors. Amethyst ( chemical formula: Si O2 ) is the purple variety of the mineral Quartz.The pure Quartz is often colorless. Amethyst gets its purplish color because of the presence of Iron ( Fe ) and other impurities in the gem. Answer: C. Iron.<span /><span />
5 0
3 years ago
Potassium has a mass number of 40 and an atomic number of 19. how many protons does it have?
ratelena [41]
19. The atomic number is the same as protons and electrons unless it have a - or a + charge the electrons are going to change
6 0
3 years ago
Other questions:
  • What is the final volume (l) of a 10.0 l system that has the pressure quartered?
    9·1 answer
  • A chemistry teacher adds 50.0 mL of 1.50 M H2SO4 solution to 200 mL of water. What is the concentration of the final solution? U
    6·2 answers
  • Calculate the formula/molecular mass of following
    15·1 answer
  • Can you please help solving the attached question on isotopes especially part e and f?
    7·1 answer
  • How do atoms form a new substance?
    12·2 answers
  • Which one of these is a compound? a) air b) carbon dioxide c) oxygen and d) carbon
    10·2 answers
  • Which of these energy resources does NOT pollute when used?
    8·1 answer
  • ¿Cómo cada una de las siguientes condiciones cambiaría la velocidad de la reacción indicada? Explique
    11·1 answer
  • How does Natural selection lead to the Evolution of bacteria?
    9·1 answer
  • The correct answer (reported to the proper number of significant figures) to the
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!