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
dimulka [17.4K]
3 years ago
8

In the following reaction, 451.4 g of lead reacts with excess oxygen forming 365.0 g of lead(II) oxide. Calculate the percent yi

eld of the reaction.
Chemistry
1 answer:
user100 [1]3 years ago
4 0
Let MM(x) be the molar mass of x.

MM(Pb) : MM(PbO)
=207.21 : 223.20  =  451.4 g : x g

cross multiply and solve for x
x=223.2/207.21*451.4
= 486.23 g

Percentage yield = 365.0/486.23= 0.75067 = 75.07% (rounded to 4 sign. fig.)

You might be interested in
Lead(II) nitrate and ammonium iodide react to form lead(II) iodide and ammonium nitrate according to the reaction Pb(NO3)2(aq)+2
Setler79 [48]

Answer:

a) volume of ammonium iodide required =349 mL

b) the moles of lead iodide formed = 0.0436 mol

Explanation:

The reaction is:

Pb(NO_{3})_{2}+2NH_{4}I -->PbI_{2}+2NH_{4}NO_{3}

It shows that one mole of lead nitrate will react with two moles of ammonium iodide to give one mole of lead iodide.

Let us calculate the moles of lead nitrate taken in the solution.

Moles=molarityX volume (L)

Moles of lead nitrate = 0.360 X 0.121 =0.0436 mol

the moles of ammonium iodide required = 2 X0.0436 = 0.0872 mol

The volume of ammonium iodide required will be:

volume=\frac{moles}{molarity}=\frac{0.0872}{0.250}=0.349L=349mL

the moles of lead iodide formed = moles of lead nitrate taken = 0.0436 mol

7 0
3 years ago
How many grams of glucose are needed to form 150g of ethanol?
Svetradugi [14.3K]
<span>1 mole glucose gives 2 moles of ethanol

moles of glucose in 2.4 kg = 2400 / 180.18 = 13.320 moles

so moles of ethanol produced = 2* 13.32 = 26.64 moles

weight of ethanol 26.64 * 46.07

=1227.30 gm or 1.23 Kg</span>
6 0
3 years ago
What element has three electrons in its 5d sublevel?
Sever21 [200]
C. Ta
Tantalum is an element with an atomic number of 63 and its electronic configuration is:
[Xe] 4f¹⁴ 5d³ 6s²
7 0
3 years ago
Which of the following is an example of how a scientist might use a model?
anzhelika [568]

D Microscopes

because they use them for DNA

a,b,and c, all you an item that can be used and not tested with.

4 0
3 years ago
Read 2 more answers
2,3-Dimethylbutane reacts with bromine in the presence of light to give a monobrominated product. Further reaction gives a good
irga5000 [103]

Answer:

Explanation:

find the solution below

3 0
4 years ago
Other questions:
  • A solution is made by dissolving 26.42g of (NH4)2so4 in enough h2o to make 50.00ml of solution
    5·2 answers
  • How many mass of chlorine molecule are found in 5 x 10^22 molecules of chlorine gas?​
    5·1 answer
  • How would the equilibrium change if NO2 were added to SO2(g) + NO2(g) NO(g) + SO3(g) + heat?
    8·2 answers
  • What is the size of a popped balloon
    15·1 answer
  • When a car engine burns gasoline, the results of the reaction are similar to when cells burn glucose. both reactions release car
    7·1 answer
  • In an experiment, Lydia added 50 grams of sugar to 200 milliliters of water. She stirred the mixture, and the sugar eventually d
    6·1 answer
  • What is the actual yield if I reacted 100.0 g of uranium with excess bromine (uranium is the limiting reactant) and had an 83% y
    14·1 answer
  • Can someone help me fill out the chart and explain what i should do, please?
    5·1 answer
  • Is h3co3 a strong base
    15·1 answer
  • NEED HELP ASAP!!! I just need to know the order
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!