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
Masja [62]
2 years ago
11

Sulfur and oxygen react to produce sulfur trioxide. In a particular experiment, 7.9 grams of SO3 are produced by the reaction of

5.0 grams of O2 with 6.0 grams of S. What is the % yield of SO3 in this experiment?
Chemistry
1 answer:
galina1969 [7]2 years ago
3 0

Answer:

\%\, yield\, \, SO_3=82.29

Explanation:

First write the balance eqation of chemical reaction:

2S(s) +3O_2(g) \rightarrow 2SO_3(g)

Remember writing any chemical reaction from its  elemetal form then write the elements in their natural form i.e. how that element exists in the nature here sulphur exists in solid monoatomic form in the nature and oxygen in gaseous diatomic form.

mass of oxygen given=5gram

mole of oxygen=5/32mol=0.16mol

mass of sulpher given=6gram

mole of sulpher=6/32mol=0.19mol

from the above balanced equaion;

2 mole of sulphur reacts with 3 mole Oxygen completely

1 mole of sulphur reacts with 1.5 mole Oxygen completely

0.19 mole of sulphur reacts with 1.5\times 0.19 i.e. 0.285 mole Oxygen completely.

but we have 0.16 mole so oxygen will be the limiting reagent and sulpher will be the excess reagent

so product will depend on the limiting reagent

from the balance equation

3 mole of sulpher gives 2 mole SO_3

1 mole of sulpher will give 2/3 mole SO_3

0.16 of sulpher will give 0.12 mole SO_3

mass of SO_3=9.6gram this is theoreical production of SO_3

and

actual production of SO_3 =7.9gram

\%\, yield   \,\, SO_3=\frac{Actual \,yield}{theoretical\, yield}\times 100

\%\, yield\, \, SO_3=\frac{7.9}{9.6} \times 100=82.29

\%\, yield\, \, SO_3=82.29

You might be interested in
Science 7 Grade 7. Can anyone please help me answer these science questions?
masha68 [24]
A cellphone battery is a electrical energy 
and a piston in an engine is an thermal energy
6 0
2 years ago
Read 2 more answers
60 grams of ice will require _____ calories to raise the temperature 1°C.
guajiro [1.7K]

Answer:

60 grams of ice will require 30.26 calories to raise the temperature 1°C.

Explanation:

The amount of heat (Q) to raise the temperature of 60.0 g of ice by 1°C can be calculated from:

<em>Q = m.c.ΔT,</em>

where, Q is the amount of heat released or absorbed by the system.

m is the mass of the ice (m = 60.0 g).

c is the specific heat capacity of ice (c = 2.108 J/g.°C).

ΔT is the temperature difference (ΔT = 1.0 °C).

∴ Q = m.c.ΔT = (60.0 g)(2.108 J/g.°C)(1.0 °C) = 126.48 J.

<em>It is known that 1.0 cal = 4.18 J.</em>

<em>∴ Q = (126.48 J)(1.0 cal / 4.18 J) = 30.26 cal.</em>

7 0
3 years ago
What needs to happen for the equation CH4 + O2 → CO2 + H2O to be balanced?
worty [1.4K]
B. This is because the Hydrogen and Oxygen need balanced out.

Current-

C-1            |        C-1
H-4            |         H-2
O-2            |         O-3


Adding a coefficient of 2 before oxygen in the reactants and H2O in the products would balance this equation

<span>CH4 + 2O2 → CO2 + 2H2O</span>
C-1            |        C-1
H-4            |         H-4
O-4            |        O-4


4 0
3 years ago
Pls help me.<br>.<br>.<br>click the pic​
uranmaximum [27]

Answer:

Gas - Fuel

Ethanol - Fuel

Acetone - Cleaner

LPG - Fuel

Kerosene - Fuel

Acetic Acid - Food

Explanation:

Source: Trust me bro!

GL, have a good one.

8 0
2 years ago
An investigation that is controlled
slega [8]
A controlled variable 
5 0
3 years ago
Read 2 more answers
Other questions:
  • Convert 7.680 moles of PtSe to grams
    15·1 answer
  • in 1965, the mean price of a new car was $2,650 and the standard deviation was $1,000. In 2011, the mean was $30,500 and the sta
    11·1 answer
  • Which of these will change if the air in a
    14·1 answer
  • What is the predicted electron configuration of Helium
    13·1 answer
  • How many fluoride ion (F-1) are needed to balance a lead (IV) ion (Pb+4)?
    11·2 answers
  • In order from lowest to highest frequency,list the different waves of the electromagnetic spectrum
    7·2 answers
  • What story does Ms. McDermid share about maggots helping identify a dead man?
    11·1 answer
  • PLZ HELP 2 mins left
    10·1 answer
  • 1) Alarge doud of dust and gas spread out in a large area is
    7·1 answer
  • Diabetes occurs when there is a large amount of sugar in the blood. Which gland is most likely not functioning well enough in a
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!