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
Margaret [11]
3 years ago
6

iron reacts with sulfur to form iron sulfide. If 60 grams of iron reacts with sulfur to produce 90 grams of iron sulfide how muc

h sulfur has been used in the chemical reaction
Chemistry
2 answers:
alisha [4.7K]3 years ago
8 0

Answer:

34.44 g.

Explanation:

  • The balanced equation for the reaction is:

<em>Fe + S → FeS,</em>

<em></em>

<em>It is clear that 1.0 mol of Fe reacts with 1.0 mol of S to produce 1.0 mol FeS.</em>

<em />

  • We need to calculate the no. of moles of 60 grams of iron and 90 grams of iron sulfide:

no. of moles of Fe = mass/atomic mass = (60.0 g)/(55.845 g/mol) = <em>1.074 mol.</em>

<em>no. of moles of FeS = mass/molar mass</em> = (90.0 g)/(87.91 g/mol) = <em>1.024 mol.</em>

<u><em>∵ Fe reacts with S with (1: 1) molar ratio.</em></u>

∴ The no. of moles of S needed to react with Fe is 1.074 mol.

<em>∴ The no. of grams of S needed = no. of moles x molar mass </em>= (1.074 mol)(32.065 g/mol) = <em>34.44 g.</em>

Nataly_w [17]3 years ago
8 0

Answer:

The answer is:

<u>A. 30 grams</u>

Explanation:

You might be interested in
Which of the following describe a noble gas?
shutvik [7]
The correct answer is B. Low chemical reactivity
7 0
2 years ago
True or False <br> the way energy flows through an ecosystem can be shown through a food web
spayn [35]
True energy passes from animal to animal or plant to plant
3 0
3 years ago
Read 2 more answers
The size (radius) of an oxygen molecule is about 2.0 ×10−10m. Make a rough estimate of the pressure at which the finite volume o
belka [17]

Answer:

Explanation:

We can calculate the volume  of the oxygen molecule as the radius of oxygen molecule is given as 2×10⁻¹⁰m.

We know that volume=4/3×πr³

volume =4/3×π(2.0×10⁻¹⁰m)³

volume=33.40×10⁻³⁰m³

Volume of oxygen molecule=33.40×10⁻³⁰m³

we know the ideal gas equation as:

PV=nRT

k=R/Na

R=k×Na

PV=n×k×Na×T

n×Na=N

PV=Nkt

p is pressure of gas

v is volume  of gas

T is temperature of gas

N is numbetr of molecules

Na is avagadros number

k is boltzmann constant =1.38×10⁻²³J/K

R is real gas constant

So to calculate pressure using the  formula;

PV=NkT

P=NkT/V

Since there is only one molecule of oxygen so N=1

P=[1×1.38×10⁻²³J/K×300]/[33.40×10⁻³⁰m³

p=12.39×10⁷Pascal

8 0
3 years ago
In which of the following are the symbol and name for the ion given correctly?
Naya [18.7K]
The answer you want is a
6 0
3 years ago
do you agree or not that evidence is only used to back scientific laws and provide evidence why or why not!!!!!! thank you, will
suter [353]

Answer:

yes, because evidence from scientifically research studies, is important because it lets us make decisions based on what works with studies of science we can know if this is right or not  

Explanation:

Hope i helped~  

4 0
2 years ago
Other questions:
  • A sample of aluminum is placed in a 25 ml graduated cylinder containing 10 mL of water. The level of water rises to 18 mL. Alumi
    9·2 answers
  • The constant k for a certain reaction is measured at two different temperatures:Temperature K376.0°C 4.8x 10^8280.0°C 2.3 x 10^8
    13·1 answer
  • Which of the following correctly organizes Mendel’s laws of hereditary from the third to the first?
    9·1 answer
  • How many moles of aluminum oxide are formed from 10.3 moles of Aluminum?
    11·1 answer
  • One hundred grams of water is saturated with NH CI at
    6·1 answer
  • An atom is made of 16 protons, 17 neutrons, and 18 electrons. What is the mass number of
    8·1 answer
  • What functional group does the molecule below have?<br><br> *two leg spider looking molecule*
    13·1 answer
  • What is forensic science?
    9·1 answer
  • Why is the addition of cold distilled water to the container holding the aspirin you are trying to isolate a necessary step and
    9·1 answer
  • Find the pH of a buffer that consists of 1.3 M sodium phenolate (C₆H₅ONa) and 1.2 M phenol (C₆H₅OH) (pKₐ of phenol = 10.00).
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!