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
GuDViN [60]
2 years ago
12

What mass of NH3 (in grams) must be used to produce 5.65 tons of HNO3 by the Ostwald process, assuming an 80.0 percent yield in

each step (1 ton = 2000 lb; 1 lb = 453.6 g)? Enter your answer in scientific notation.
Chemistry
1 answer:
butalik [34]2 years ago
8 0

Answer:

The answer to the question is

The mass of NH3 (in grams) that must be used to produce 5.65 tons of HNO3 by the Ostwald process, assuming an 80.0 percent yield in each step in scientific notation is 3.46 × 10⁶ grams.

Explanation:

The reaction for the Ostwald process is given by

4NH₃ + 5O₂  → 4NO + 6H₂O

2NO + O₂  ↔ 2NO₂

3NO₂ (g) + H₂O (l) → 2HNO₃ + NO

From the reactions of the Ostwald process, 4 moles of NH₃ are required to produce 2 moles of HNO₃

Therefore One mole of HNO₃ requires two moles of NH₃  for production at 100 % theoretical yield

Molar mass of NH₃  =  17.031 g/mol

Molar mass of HNO₃  = 63.01 g/mol

5.65 tons = 5.65 × 2000 lb/ton × 453.6 g/lb = 5125680 g

Number of moles of HNO₃ in 5125680 g sample of HNO₃

= (5125680 g)÷(63.01 g/mol) = 81347.09 moles of HNO₃

However the yield = 80.0%  that is \frac{Actual Yield}{Theoretical Yield} 100 = 80 %

Therefore 80 % Theoretical yield = 81347.09 moles of HNO₃

Theoretical yield = 81347.09 moles ÷ 0.8  = 101683.86 moles

Then 101683.86 moles of HNO₃ will require 2 × 101683.86 moles or 203367.72 moles of NH₃

Mass of 203367.72 moles of NH₃  is given by

mass = number of moles × molar mass = 203367.72 moles ×  17.031 g/mol = 3463555.63 grams

Mass of NH₃ required = 3463555.63 grams = 3.46 × 10⁶ grams  in scientific notation.

You might be interested in
Science 6th grade please help me :)
Gnom [1K]
I’m pretty sure the answer is D :)
6 0
3 years ago
Read 2 more answers
Balance the equation AlCl3 + H2SO4 yields Al2(SO4)3 +HCl
Natalija [7]

Answer:

2AlCl3 + 3H2SO4 → Al2(SO4)3 + 6HCl

Explanation:

3 0
3 years ago
From 1962 until 1981 pennies were made from 95% copper and 5% zinc and had a mass of 3.1 g. Starting in 1982, pennies have been
Sloan [31]

Answer:

2.7724 g

Explanation:

Mass of pre- 1892 pennies = 3.1 g

Abundance = 45.4 %

Mass of post 1892 pennies = 2.5 g

Abundance = 100 - 45.4 = 54.6 %

The average mass is given as = ( 3.1 g   *  45.4 / 100)  +  (2.5g  *  54.6 / 100)

Average Mass = 3.1 * 0.454   +   2.5  *  0.546

Average Mass = 1.4074  + 1.365 = 2.7724 g

8 0
3 years ago
3mL of cyclohexanol (density = 0.9624 g/mL, Molecular weight = 100.158 g/mol) reacts with excess sulfuric acid to produce cycloh
TiliK225 [7]

Answer:

n_{C_6H_{10}}=0.03molC_6H_{10}

Explanation:

Hello,

In this case the undergoing chemical reaction is shown on the attached picture whereas cyclohexanol is converted into cyclohexene and water by the dehydrating effect of the sulfuric acid. Thus, for the starting 3 mL of cyclohexanol, the following stoichiometric proportional factor is applied in order to find the theoretical yield of cyclohexene in moles:

n_{C_6H_{10}}=3mLC_6H_{12}O*\frac{0.9624gC_6H_{12}O}{1mLC_6H_{12}O}*\frac{1molC_6H_{12}O}{100.158gC_6H_{12}O}*\frac{1molC_6H_{10}}{1molC_6H_{12}O} \\n_{C_6H_{10}}=0.03molC_6H_{10}

Besides, the mass could be computed as well by using the molar mass of cyclohexene:

m_{C_6H_{10}}=0.03molC_6H_{10}*\frac{82.143gC_6H_{10}}{1molC_6H_{10}} \\\\m_{C_6H_{10}}=2.4gC_6H_{10}

Even thought, the volume could be also computed by using its density:

V_{C_6H_{10}}=2.4gC_6H_{10}*\frac{1mLC_6H_{10}}{0.811gC_6H_{10}} \\V_{C_6H_{10}}=3mLC_6H_{10}

Best regards.

4 0
2 years ago
Read 2 more answers
How does maximum boiling azeotropic mixture is separated using fractional distillation?
Evgesh-ka [11]

Answer:

By heating the mixture to maximum boiling point and then the solution is distilled at a constant temperature without having a change in composition.

Explanation:

An azeotropic mixture is also called a constant boiling mixture and it is a mixture of two or more liquids whose proportions cannot be altered by simple distillation due to the fact that when an azeotropic mixture is boiled, the vapor has the same proportions of constituents as the unboiled mixture.

Now, maximum boiling azeotropic mixture are the solutions with negative deviations that have an intermediate composition  for which the vapor pressure of the solution is minimum and as a result, the boiling point is maximum. At that point, the solution will distill at a constant temperature without having a change in composition.

4 0
2 years ago
Other questions:
  • Ni-cad (nickel–cadmium) batteries have a slightly lower cell potential than the common alkaline value of 1.5 v normally used in
    14·1 answer
  • Which statement best describes the collisions of gas particles according to the kinetic-molecular theory?​
    12·1 answer
  • Match the mixture with its description.
    9·2 answers
  • A. draw the structure of the tetrahedral intermediate initially formed in the reaction shown. you do not have to consider stereo
    11·1 answer
  • FIRST GETS BRAINLIEST
    12·1 answer
  • What phase of matter has particles that are held together but can flow past each other and takes the shape of a container, filli
    7·2 answers
  • A. How the molecules in a solid, liquid and gas compare to each other.
    13·1 answer
  • The concentration of hydroxide ions is greater than the concentration of hydronium ions for acidic solutions. true or false
    11·1 answer
  • Which of the substances are elements please help
    12·1 answer
  • The oxidation state for Cl is A. -1 as a reactant and +1 as a product B. -1 as a reactant and 0 as a product C. -1 as a reactant
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!