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
bazaltina [42]
3 years ago
7

How many grams of sulfur are needed to react completely with 246 g of mercury to form hgs?

Chemistry
2 answers:
iren [92.7K]3 years ago
5 0

The reaction between mercury (Hg) and sulfur (S) to form HgS is:

Hg + S ------------- HgS

Therefore: 1 mole of Hg reacts with 1 mole of S to form 1 mole of HgS

The given mass of Hg = 246 g

Atomic mass of Hg = 200.59 g/mol

# moles of Hg = 246 g/ 200.59 gmol-1 = 1.226 moles

Based on the reaction stoichiometry,

# moles of S that would react = 1.226 moles

Atomic mass of S = 32 g/mol

Therefore, mass of S = 1.226 moles*32 g/mole = 39.23 g

39.2 g of sulfur would be needed to react completely with 246 g of Hg to produce HgS

Soloha48 [4]3 years ago
5 0

39.3 grams of sulfur reacted completely with 246 grams of mercury to form HgS.

<u>FURTHER EXPLANATION</u>

To solve this problem, first write the balanced chemical equation for the given reaction:

Hg + S → HgS

To solve the problem, we use the stoichiometric ratios of mercury and sulfur.

First, convert the mass of mercury to moles using the molar mass (200.59 g/mol).

moles \ Hg = 246 \ g \ Hg \times \frac{1 \ mol \ Hg}{200.59 \ g}\\\\moles \ Hg = 1.226 \ mol

Now, determine the moles of sulfur formed using the stoichiometric ratio of sulfur and mercury which is 1:1

moles \ S \ = 1.226 \ mol \ Hg \times \frac{`1 \ mol \ S}{1 \ mol \ Hg} \\\\moles \ S = 1.226 \ mol

To get the mass of sulfur that reacted with mercury to form HgS, use the molar mass of sulfur (32.06 g/mol)

mass \ of \ S = 1.226 \ mol \ S \times \frac{32.06 \ g}{1 \ mol \ S}\\\\\boxed {mass \ of \ S = 39.31 \ g}

Since the given only has 3 significant figures, the final answer must also have the same. Therefore,

\boxed {\boxed {mass \ of \ S = 39.3 \ g}}

<u>Learn More</u>

  • Learn more about dimensional analysis brainly.com/question/1557970
  • Learn more about Limiting Reactants brainly.com/question/12979491

<em>Keywords: stoichiometry, dimensional analysis</em>

You might be interested in
Is the first part "kilo" from the word kilograms a suffix, prefix or unit???​
Nikolay [14]

Answer:

Kilo is a prefix

Explanation:

Prefixes are the beginning of words.

Thus KILOgram is at the beginning.

Suffix is at the END of a word

Unit is the body of the word

7 0
3 years ago
Read 2 more answers
Which branch of chemistry would be used to make steel?
Tpy6a [65]

Answer:

the five major branches of chemistry are organic, inorganic, analytical, physical, and biochemistry.

5 0
3 years ago
What is the difference between a physical and chemical change?
Zanzabum
In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed. The distinction between physical and chemical change is not clear cut.
6 0
3 years ago
Read 2 more answers
A cheeseburger from a fast food restaurant contains 19 g of fat, 20 g of carbohydrate, and 28 g of protein. how many kcal of ene
Burka [1]
I believe the answer is D
3 0
3 years ago
Perform the following
strojnjashka [21]

Answer:

4 sig figs: 20.18

Explanation:

the smallest amount of digits was 4 in the expression

7 0
3 years ago
Other questions:
  • The wavelength of light that has a frenquency of 1.20x10^13s^-1
    9·1 answer
  • What are the stages of filtration in the nephrons?
    7·1 answer
  • What phase would this substance be in at a pressure of 1.25atm and a temperature of 700C
    15·1 answer
  • At 20 ∘C the vapor pressure of benzene C6H6 is 75 torr and that of toluene C7H8 is 22 torr. Assume that benzene and toluene fo
    11·1 answer
  • Suppose now that you wanted to determine the density of a small crystal to confirm that it is sulfur. From the literature, you k
    14·1 answer
  • Who dis who dis who dis​
    9·2 answers
  • Think about a hot summer afternoon at the beach
    5·2 answers
  • Base your answers to questions 74 through 76 on the data table below and on your knowledge of Earth
    14·1 answer
  • Decay chains exist because
    11·1 answer
  • 14 steps decay series
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!