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
QveST [7]
3 years ago
7

A sample of a compound contains 3.21 g of sulfur and 11.4 g of fluorine. Which of the following represents the empirical formula

of the compound?
(A) SF2 (B) SF3 (C) SF4 (D) SF5 (E) SF6
Chemistry
1 answer:
Sergeeva-Olga [200]3 years ago
7 0

Answer:

The empirical formula is SF6 (option E)

Explanation:

Step 1: Data given

Mass of sulfur = 3.21 grams

Mass of fluorine = 11.4 grams

Molar mass sulfur = 32.065 g/mol

Molar mass fluorine = 19.00 g/mol

Step 2: Calculate moles

Moles = mass /molar mass

Moles sulfur = 3.21 grams / 32.065 g/mol

Moles sulfur = 0.100 moles

Moles fluorine = 11.4 grams / 19.00 g/mol

Moles fluorine = 0.600 moles

Step 3: Calculate mol ratio

We divide by the smallest amount of moles

S: 0.100 / 0.100 = 1

F : 0.600 / 0.100 = 6

The empirical formula is SF6 (option E)

You might be interested in
Which answer below correctly identifies the type of change and the explanation when magnesium comes into contact with hydrochlor
Oliga [24]

Answer:

A chemical change because a temperature change occurred, the solid disappeared and a gas was produces

Explanation:

Magnesium reacts with hydrochloric acid releasing energy, and leading to the formation of  magnesium chloride and hydrogen gas. This is represented by the equation below:

Mg₍s₎ + 2HCl₍aq)⇒ MgCl₂₍aq₎ + H₂₍g₎

5 0
3 years ago
Read 2 more answers
Which milligram quantity contains a total of four significant figures
denis23 [38]
D has a total of four significant figures.
7 0
3 years ago
Read 2 more answers
Why is it commonly believed that carbon dioxide is responsible for global warming? Select 2 options.
monitta

Answer:

Carbon dioxide levels in the Earth's atmosphere have been steadily increasing.

Carbon has a longer average lifetime in the atmosphere.

Explanation:

Today the level of carbon dioxide is higher than at any time in human history. Scientists widely agree that Earth’s average surface temperature has already increased by about 2 F (1 C) since the 1880s, and that human-caused increases in carbon dioxide and other heat-trapping gases are extremely likely to be responsible.

The lifetime in the air of CO2, the most significant man-made greenhouse gas, is probably the most difficult to determine, because there are several processes that remove carbon dioxide from the atmosphere. Between 65% and 80% of CO2 released into the air dissolves into the ocean over a period of 20–200 years.

6 0
3 years ago
Read 2 more answers
You are given a cup of milk and a spoon of sugar. What type of mixture will be formed? justify your answer.​
IrinaK [193]
Milk that’s really sweet? or clumpy milk?
6 0
3 years ago
How do scientists take instruments for measurement up to about 100,000 feet of
uranmaximum [27]
Answer: b
can’t be weather balloons cuz they would pop.
satellites are used for different things
no jet










4 0
2 years ago
Other questions:
  • What elements are in h2o
    11·1 answer
  • You add heat to matter, the atoms that make up the matter will begin to move ????
    7·2 answers
  • What type of hydrocarbon is 2-octene, and what about the structure allows 2-octene to be classified as this type of hydrocarbon?
    6·1 answer
  • What is definition of an abiotic factor?
    6·2 answers
  • Salt dissolving in water is a physical change. (2 points) True False
    5·1 answer
  • What is the most likely reason a computer model is used for a black hole?
    15·1 answer
  • Rank cesium, chlorine, and chromium in order of increasing electron affinity
    14·1 answer
  • A sample of iron with a mass of 50.0 grams absorbs 2500 J of thermal energy. How much would the temperature of this sample chang
    8·1 answer
  • Calculate the speed of the car at each checkpoint by dividing the distance between each checkpoint in meters by the change in ti
    15·2 answers
  • Which option is an example of a physical change? Question 3 options: baking bread burning paper cooking eggs cutting paper
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!