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
ioda
4 years ago
6

If 0.66 g magnesium reacts exactly with 0.43 g oxygen, what mass of magnesium oxide will be produced?

Chemistry
1 answer:
Nitella [24]4 years ago
5 0
Balanced equation for the reaction is;
2Mg + O₂ --> 2MgO
stoichiometry of Mg to O₂ is 2:1
we need to first find the limiting reactant 
number of Mg moles - 0.66 g / 23 g/mol = 0.029 mol
number of O₂ moles - 0.43 g / 32 g/mol = 0.013 mol
If Mg is the limiting reactant 
2 mol of Mg reacts with 1 mol of O₂
then 0.029 mol of Mg reacts with - 0.029/2 = 0.0145 mol 
but only 0.013 mol of O₂ is present
therefore O₂ is limiting reactant. amount of product formed depends on amount of limiting reactant present,
stoichiometry of O₂ to MgO is 1:2
when 0.013 mol of O₂ reacts - 0.026 mol of MgO is formed 
mass of MgO produced is - 0.026 mol x 39 g/mol = 1.014 g
1.014 g of MgO formed
You might be interested in
1. Write the balanced equation for the decomposition of hydrogen peroxide
earnstyle [38]

The balanced equation for the decomposition of hydrogen peroxide is H₂O₂(aq)→2H₂O(l)+O₂(g).

<h3>What is decomposition reaction?</h3>

Decomposition reactions are those reactions in which a compound will decompose into small molecules.

Hydrogen peroxide will decompose into water molecule and oxygen gas, balanced chemical equation will be represented as:

H₂O₂(aq) → 2H₂O(l) + O₂(g)

Where all atoms are present in equal quantities on both side of the equation.

Hence balanced decomposition reaction of H₂O₂ is H₂O₂(aq)→2H₂O(l)+O₂(g).

To know more about decomposition reaction, visit the below link:

brainly.com/question/27300160

#SPJ4

5 0
2 years ago
I have coronia virus say something positive to help me through
Rashid [163]

Answer:

you're a strong person so keep on keeping on.

Explanation:

8 0
3 years ago
Read 2 more answers
A cord is used to vertically lower an initially stationary block of mass m kg at a constant downward acceleration of g/4. the bl
Natali5045456 [20]

(a) We know that work is the product of Force and Distance so: (in this case Distance is negative since going down so –d)

work = force * distance

work = M * (g - g/4) * -d

work = -3Mgd/4 <span>

(b) The work by the weight of the block is simply:</span>

work = Mgd <span>

(c) The kinetic energy is simply equivalent to the net work, therefore:</span>

KE = net work

KE = Mgd/4 <span>

(d) The velocity is:</span>

v = √(2*KE/M)

Plugging in the value of KE from c:

v = √(2*Mgd / 4M)

<span>v = √(gd / 2) </span>

5 0
3 years ago
A chemist wants to produce 12.00 grams of barium sulfate by reacting a .6000 M BaCl2 solution with excess H2SO as show in the re
worty [1.4K]
Find the moles of BaSO4 first. Then since we know it's a one to one ratio from barium chloride to barium sulfate we can just solve for liters.
<span>First you need to find the moles BaSO4 , and the you will require to find barium sulfate in liters.

</span>12.00gBaSO4 / 233.31 grams per mole

=.05141moles

Molarity=moles/liters

Hence,

Liters=.05141moles/.6Molarity
=.85 liters
7 0
3 years ago
Read 2 more answers
3. If we remember seeing something happen, we can trust that it happened just as we think it did. True or False​
djverab [1.8K]

\huge{ \underbrace{ \overbrace{True}}}

.

\huge\mathfrak\purple{Hope  \: it  \: helps}

Note : Because Many of My Dreams came true and I realized.

3 0
3 years ago
Other questions:
  • How many secondary (2°) carbons are found in 5-ethyl-3,3,4-trimethylheptane??
    7·2 answers
  • The natural abundance of 2h is 0.015% and that of 18o is 0.20%. How many 2h218o molecules are there in 1.0 moles of water?
    7·1 answer
  • Kara shines a blue light and a red light onto paper as shown in the figure below. If the paper is
    9·1 answer
  • What type of particle is emitted by each type of radioactive decay?
    12·2 answers
  • What is 2000lbs in 1 ton
    6·1 answer
  • What is of or from outside of the earth
    5·1 answer
  • A sample of iodine is easiest to ship as a powder because it is making it easy to break into small pieces.What goes in the blank
    7·2 answers
  • PLEASE HELP HELP HELP
    7·1 answer
  • HELP
    7·2 answers
  • But Are Punnett square percentages always correct?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!