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
anygoal [31]
2 years ago
7

In 1774, Joseph Priestly discovered oxygen gas by heating mercury(II) oxide powder with focused sunlight through a lens. How man

y grams of HgO (216.59 g/mol) would be decomposed to produce 1.50 mol O2 ? A. 650. g HgO B. 325gHgO C. 162gHgO D. 3.00 g HgO

Chemistry
1 answer:
mars1129 [50]2 years ago
3 0

Answer:

A. 650 g

Explanation:

The equation of the reaction is given as;

2 HgO(s) --> 2Hg(s)  + O2(l)

From the reaction;

2 mol of HgO produces 1 mol of O2

x mol of HgO would produce 1.50 mol of O2

2 = 1

x = 1.5

Solving for x;

x = 1.5 * 2 / 1 = 3 mol

Converting to mass;

Mass = Number of moles * Molar mass

Mass = 3 mol  * 216.59 g/mol

Mass = 649.77 g ≈ 650. g

Correct option is ;

A. 650 g

You might be interested in
Which two elements make up the greatest percentages by mass in Earth’s crust?
yuradex [85]
<h2><u>Answer</u> :</h2>

The most appropriate option is :

\hookrightarrow \bf2. \:  \mathrm{ \underline{oxygen \:  \: and \:  \: silicon}}

Since, they are the most abundant elements found in Earth's Crust.

  • Oxygen (46%)

  • Silicon (28%)

\circ  { \underline{ \boxed{ \sf{ \color{green}{ \mathrm{hope \:  \: it \:  \: helps \:  \: you .....}}}}}}∘

4 0
2 years ago
Consider the following combustion reaction:
ZanzabumX [31]

Answer:

vxcvggccbbcCbnmhxx vgfscvjjg

6 0
3 years ago
Read 2 more answers
One example of a physical change is
Gekata [30.6K]
Plucking eyebrows hehe
8 0
3 years ago
Read 2 more answers
A fire is an example of ________________ reaction, because heat is _____________ the system.
Over [174]

d. exothermic; leaving

  • Exothermic reaction is a reaction that produces heat in the reaction whereas the endothermic reaction is a reaction in which heat is required to be given in the reaction to produce product.
  • Fire is an exothermic reaction.
  • A fire is produced due to oxidation of the fuel in the form of liquid or gas.
  • A fire is an example of combustion.
  • In fire both heat and light are left from fire due to the oxidation of fuel.

Hence, option d. exothermic; leaving is the correct option.

Learn more about fire:

brainly.com/question/12761984

8 0
2 years ago
Read 2 more answers
DDT was banned from use as a pesticide in the United States because
Dmitry_Shevchenko [17]
Too much money and dangerous 
5 0
2 years ago
Other questions:
  • Atomic number for bromine
    12·1 answer
  • Imagine you are going to eat your lunch soon. How did that stuff you eat originally get transformed into food by the plants or a
    13·2 answers
  • 30 POINTS!!!!!! PLEASE HURRY!!!! Four boxes of increasing size and weight must be pushed up a ramp. To push the boxes at the sam
    9·2 answers
  • A biochemist is attempting to replicate a chemical reaction that commonly takes place in cells. during the chemical reaction, st
    10·1 answer
  • Dalton had the first idea of the atom true or false
    8·1 answer
  • What is the main difference between an isotope and an ion
    7·1 answer
  • Problem Page A chemist measures the amount of bromine liquid produced during an experiment. He finds that of bromine liquid is p
    12·1 answer
  • The internet is a local communication network that allows only certain computers to connect and exchange information True or fal
    11·1 answer
  • Which of these materials is an example of a conductor? (of electricity)
    11·2 answers
  • Give valency of the cation and anion in zinc sulphate​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!