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
Studentka2010 [4]
3 years ago
8

If 1.02 g of nickel reacted with 750. mL of 0.112 M hydrobromic acid, how much of each will be present at the end of the reactio

n if you captured the gas in a 2.50 L vessel at 30 C
Chemistry
1 answer:
kati45 [8]3 years ago
8 0

Answer:

35.1% is percent yield

Explanation:

<em>Full question: Assume no volume change.  If you formed 0.0910 atm of gas, what is the percent yield?</em>

<em />

The reaction that is occurring is:

Ni + 3HBr → NiBr₃ + 3/2H₂(g)

First, we will determine moles of Ni and HBr to determine limiting reactant and theoretical yield

Using ideal gas law, we can determine the moles of hydrogen formed. Thus, we can find percent yield:

<em>Moles Ni (Molar mass: 58.69g/mol):</em>

1.02g * (1mol / 58.69g) = 0.01738moles Ni

<em>Moles HBr:</em>

0.750L * (0.112mol/L) = 0.084 moles of HBr.

For a complete reaction of the 0.084 moles of HBr you need:

0.084mol HBr * (1 mole Ni / 3 moles HBr) = 0.028 moles of Ni.

As there are just 0.01738 moles of Ni, the Ni is limiting reactant. Assuming a theoretical yield, moles of H₂ produced are:

0.01738moles Ni * (3/2 H₂ / 1 mol Ni) = 0.02607 moles H₂

Now, moles of H₂ produced are:

PV = nRT

PV/RT = n

<em>Where P is pressure (0.0910atm)</em>

<em>V is volume (2.50L)</em>

<em>R is gas constant (0.082atmL/molK)</em>

<em>T is absolute temperature in Kelvin (30°C + 273.15 = 303.15K)</em>

<em>And n are moles</em>

PV/RT = n

0.0910atm*2.50L/0.082atmL/molK*303.15K = n

0.00915 moles = n

<em />

And percent yield (Produced moles / Theoretical moles * 100) is:

0.00915 moles / 0.02607moles =

<h3>35.1% is percent yield</h3>
You might be interested in
Explain what happens during the chemical reaction<br> CaCO3 -&gt; CaO + CO2
faust18 [17]

check out this article i found it very helpful,

I couldn't find the answer to your question.

Download pdf
6 0
3 years ago
How many molecules of water can fit in one teaspoon?
34kurt
About 5 millimeters which weighs about 5 grams. Hope this helps! ^-^

4 0
3 years ago
32.7 grams of water vapor takes up how many liters at standard temperature and pressure (273 K and 100 kPa)?
kotegsom [21]
Under standard temperature and pressure conditions, it is known that 1 mole of a gas occupies 22.4 liters.

From the periodic table:
molar mass of oxygen = 16 gm
molar mass of hydrogen = 1 gm
Thus, the molar mass of water vapor = 2(1) + 16 = 18 gm

18 gm of water occupies 22.4 liters, therefore:
volume occupied by 32.7 gm = (32.7 x 22.4) / 18 = 40.6933 liters

5 0
3 years ago
Which type of reaction has will give brainliest to first correct answer
k0ka [10]

Answer:

I think it's replacement because the B and D just swap places in the end equation

7 0
3 years ago
Read 2 more answers
Question 5 (1 point)
mart [117]

Answer:

hhhheeelllpppp

Explanation:

i need this answer tooooo

3 0
3 years ago
Read 2 more answers
Other questions:
  • One difference between d-glucose and l-glucose is
    10·1 answer
  • Please answer me ASAP
    8·1 answer
  • If the specific heat capacity of water is 4.19 J/(g⋅K), how much energy would be required to raise the temperature of 100.0 g of
    9·1 answer
  • How do cells get ATP, the energy currency that does work in living things?
    11·1 answer
  • The _______ force between each planet and the Sun keeps the planets in orbit around the Sun.
    11·1 answer
  • Which of the following would lose heat the fastest?
    11·1 answer
  • Which letter corresponds with the location of f orbitals on the periodic table?
    15·1 answer
  • In 1980 the Mt. St. Helens volcano erupted and impacted thousands of square miles of forest.Some areas are still undergoing seco
    10·1 answer
  • A 4M solution means there are
    9·1 answer
  • Consider the hydrocarbon below. 2 carbons are double-bonded to each other; the pair are single bonded to h above left, above rig
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!