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
PIT_PIT [208]
3 years ago
12

Consider the balanced reaction below:

Chemistry
1 answer:
artcher [175]3 years ago
3 0

Answer:

0.723 moles (5 s.f.)

Explanation:

Whenever there is a chemical equation, ensure that it is balanced. This is because a balanced chemical equation tells us the mole ratio (not the ratio of their masses), which means the relationship of the number of moles of reactants or products with one another.

The chemical equation given has already been balanced. Looking at the coefficients of HBr and Ba(OH)₂, the mole ratio of HBr to Ba(OH)₂ is 2: 1.

• 1 mole of Ba(OH)₂ is needed to react with 2 mole of HBr

Find the number of moles of HBr present:

Number of moles= mass ÷mr

Amount of HBr

= 117 ÷(1 +79.9)

= 1.4462 moles (5 s.f.)

Since the amount of Ba(OH)₂ required is half the amount of HBr present,

amount of Ba(OH)₂ required

= 1.4462 ÷2

= 0.723 moles (3 s.f.)

Notes:

• mr

= relative molecular mass

= sum of relative atomic masses (which can be found in the periodic table) in a molecule

You might be interested in
Can someone help me with this plz??
cestrela7 [59]

Answer:

I dont know at all and that is confusing.

5 0
3 years ago
How many valence electrons does Bromine have?
soldi70 [24.7K]

Answer:

7

Explanation:

8 0
3 years ago
Read 2 more answers
Limestone (CaCO₃) is used to remove acidic pollutants from smokestack flue gases. It is heated to form lime (CaO), which reacts
Alex

To completely eliminate all of the SO2 produced by coal burning, 1250.62 kg of CaCO3 are required.

Equation

CaCO₃ --->CaO + CO2

2 CaO +2 SO2 ----> 2 CaS + 3O2

overall reaction

2 CaCO₃ +2 SO2 ---> 2 CaS + 3O2 + 2CO2

m(S)=8,5 x 10^{4}*0.0033=280.5 kg

n(SO2)= m/Ar(S) = 8,75 x 10^{3}mol

n(CaCO3 needed) = n(SO2) / percent yield

n(CaCO3 needed) = 8.75 x 10^{3}mol / 0.7

​n(CaCO3 needed)= 1.25 x 10 ^4 mol

m(CaCO3 needed) = n x Mr = 1250.62kg

To completely eliminate all of the SO2 produced by coal burning, 1250.62 kg of CaCO3 are required.

<h3>Where Is Limestone Found?</h3>

Numerous locations that produce limestone have been recognized by geologists throughout the world. Between 30o N and 30o S latitude, the most of them are in shallow waters. The Caribbean Sea, Indian Ocean, Persian Gulf, and the Gulf of Mexico are the most well-known shallow water locations.

learn more about limestone here

brainly.com/question/15148363

#SPJ4

5 0
2 years ago
A pure substance could be either an element or a compound true or false?
Zanzabum

Answer:

True

Explanation:

Both work because an element would be pure and compounds can be split into elements. This will work unless the substance isnt chemcially pure, but in this case it is so the answer would be true.

3 0
3 years ago
If a 100.-L balloon is filled with 3.0 moles of gas to a pressure of 1.0 atmospheres, what is the temperature of the balloon in
kramer

Answer:

the answer is d

Explanation:

8 0
4 years ago
Other questions:
  • 5.0 L of carbon dioxide gas are produced by the reaction below at STP how many liters of oxygen gas are used in the reaction
    6·1 answer
  • Express 727,000 in scientific noation
    6·2 answers
  • What are glacial erratics made/composed of? How did they form?
    13·1 answer
  • WILl GIVE BRANILIEST AND 10+ POINTS
    8·1 answer
  • Which of these solutions will be the best conductor of electricity?
    12·2 answers
  • Write a letter to your friend describing your feelings after you left the school
    11·1 answer
  • (06.06 MC)
    8·2 answers
  • Can someone please help me?
    5·1 answer
  • Which of the following will lose 2 electrons to become stable?
    7·1 answer
  • A sample of oxygen occupied 626 mL when the pressure increased to 874.27 mm Hg. At constant temperature, what volume did the gas
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!