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
mart [117]
2 years ago
11

Solid iron(II) sulfide reacts with aqueous hydrochloric acid to produce aqueous iron(II) chloride and hydrogen sulfide gas . Wri

te a balanced chemical equation for this reaction.
Chemistry
1 answer:
Sphinxa [80]2 years ago
7 0

A balanced chemical equation for this reaction :

FeS(s)+2HCl(aq)→FeCl2(aq)+ H2S(g)

<h3>Further explanation</h3>

Given

Word equation

Required

Balanced equation

Solution

The chemical equation can be expressed in terms of:

  • word equation
  • skeleton equation
  • balanced equation

Skeleton equation

FeS(s)+ HCl(aq) --> FeCl2 (aq) + H2S (g)

Balanced equation

FeS(s)+2HCl(aq)→FeCl2(aq)+ H2S(g)

You might be interested in
A buffer solution contains 0.496 M hydrocyanic acid and 0.399 M sodium cyanide . If 0.0461 moles of sodium hydroxide are added t
pochemuha

Answer : The pH of the solution is, 9.63

Explanation : Given,

The dissociation constant for HCN = pK_a=9.31

First we have to calculate the moles of HCN and NaCN.

\text{Moles of HCN}=\text{Concentration of HCN}\times \text{Volume of solution}=0.496M\times 0.225L=0.1116mole

and,

\text{Moles of NaCN}=\text{Concentration of NaCN}\times \text{Volume of solution}=0.399M\times 0.225L=0.08978mole

The balanced chemical reaction is:

                          HCN+NaOH\rightarrow NaCN+H_2O

Initial moles     0.1116       0.0461     0.08978

At eqm.       (0.1116-0.0461)    0       (0.08978+0.0461)

                        0.0655                       0.1359

Now we have to calculate the pH of the solution.

Using Henderson Hesselbach equation :

pH=pK_a+\log \frac{[Salt]}{[Acid]}

Now put all the given values in this expression, we get:

pH=9.31+\log (\frac{0.1359}{0.0655})

pH=9.63

Therefore, the pH of the solution is, 9.63

4 0
3 years ago
The expected value for a chemical equation is 47g of water, after an experiment you find that you have 2.58 moles of water. What
strojnjashka [21]
<h3><u>Answer</u>;</h3>

Actual yield = 46.44 g

<h3><u>Explanation;</u></h3>

1 mole of water = 18 g/mol

Therefore;

The experimental yield = 2.58 moles

equivalent to ; 2.58 × 18 = 46.44 g

The theoretical value is 47 g

Percentage yield = 46.44/47 × 100%

                             = 98.8%

The questions asks for actual yield = 46.44 g

6 0
3 years ago
How is the atomic mass of an element calculated? A. by determining the number of electrons in the outer orbital B.by determining
Vaselesa [24]

By adding together the number of protons and neutrons and multiplying by 1 amu, you can calculate the mass of the atom.

7 0
3 years ago
Read 2 more answers
How a cold front affects weather.
miskamm [114]

Answer:

A cold front forms when a cold air mass pushes into a warmer air mass. Cold fronts can produce dramatic changes in the weather. ... As the cold front passes, winds become gusty. There is a sudden drop in temperature, and also heavy rain, sometimes with hail, thunder, and lightning.

4 0
3 years ago
Read 2 more answers
Where do most carbon monoxide emissions come from?
qwelly [4]

Answer:

The largest anthropogenic source of CO in the United States is vehicle emissions.

Explanation:

4 0
3 years ago
Other questions:
  • what do all word equations start with? what comes next in the word equation? how is the word equation concluded ?
    13·1 answer
  • What is true about two neutral atoms of the element gold
    6·1 answer
  • Write balanced molecular equation for the reaction between nitric acid and calcium hydroxide. Express your answer as a chemical
    14·1 answer
  • The glass hand bubbler holds a red liquid. When it heats up, do you see a chemical change or a physical change? How do you know?
    8·1 answer
  • Which of the following are base formulas? (Choose 2)
    8·1 answer
  • 8
    12·1 answer
  • When naming compounds, which type of compound uses prefixes to indicate the number of
    7·1 answer
  • Unit Test Unit Test Active 13 TIME REMAINING 01:31:26 Chemical A and Chemical B react in an exothermic reaction. What can be kno
    12·2 answers
  • Hurry I need the answer asap
    11·1 answer
  • 4. Using stoichiometry, how many grams of sodium chloride should be produced from the reaction
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!