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
navik [9.2K]
3 years ago
9

You wish to prepare a tape-casting slip containing 50 vol% Al2O3 and 50 vol% polyvinyl butyral (PVB) binder. If the density of A

l2O3 is 3.98 g/cm and that of PVB is 1.08 g/cm?, how many of grams of PVB are required to produce 1000 g of tape?
Chemistry
1 answer:
belka [17]3 years ago
4 0

<u>Answer:</u> The mass of PVB required to produce 1000 grams of tape is 213.4 grams

<u>Explanation:</u>

To calculate the mass of aluminium oxide, we use the equation:

\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}       .......(1)

  • <u>For Al_2O_3</u>

We are given:

50% (v/v) of Al_2O_3

This means that 50 mL of aluminium oxide is present in 100 mL of tape

Calculating the mass of aluminium oxide by using equation 1:

Density of aluminium oxide = 3.98 g/cm^3

Volume of aluminium oxide = 50mL=50cm^3     (Conversion factor:  1mL=1cm^3 )

Putting values in equation 1, we get:

3.98g/cm^3=\frac{\text{Mass of aluminium oxide}}{50cm^3}\\\\\text{Mass of aluminium oxide}=(3.98g/cm^3\times 50cm^3)=199g

Mass of aluminium oxide = 199 g

  • <u>For PVB:</u>

We are given:

50% (v/v) of PVB

This means that 50 mL of PVB is present in 100 mL of tape

Calculating the mass of PVB by using equation 1:

Density of PVB = 1.08 g/cm^3

Volume of PVB = 50mL=50cm^3

Putting values in equation 1, we get:

1.08g/cm^3=\frac{\text{Mass of PVB}}{50cm^3}\\\\\text{Mass of PVB}=(1.08g/cm^3\times 50cm^3)=54g

Mass of PVB = 54 g

Mass of tape = Mass of aluminium oxide + mass of PVB

Mass of tape = [199 + 54] g = 253 g

To calculate the mass of PVB required to produce 1000 g of tape, we use unitary method:

When 253 grams of tape is made, the mass of PVB required is 54 g

So, when 1000 grams of tape is made, the mass of PVB required will be = \frac{54}{253}\times 1000=213.4g

Hence, the mass of PVB required to produce 1000 grams of tape is 213.4 grams

You might be interested in
PLEASE HELP ME
BabaBlast [244]

Answer:47.05% is the percent yield of nitrogen in the reaction.

Explanation:

heoretical yield of nitrogen gas = x

Moles of ammonia =  

According to reaction,2 moles of ammonia gives 1 mol of nitrogen gas.

Then 2.3529 mol of ammonia will give:

of nitrogen gas

Mass of 1.1764 moles of nitrogen gas,x = 1.1764 mol × 28 g/mol=32.94 g

Experiential yield of nitrogen gas = 15.5 g

Percentage yield:

hope that help

47.05% is the percent yield of nitrogen in the reaction.

3 0
3 years ago
300 °C would be found in which temperature range?
devlian [24]
Hey it’s D
673K-772K
8 0
3 years ago
A scientist is studying two types of worms. Worm X has DNA identical to its parent. Worm Y has a combination of DNA from two par
beks73 [17]

Answer:

2. Worm Y reproduces sexually, which gives it genetic variation.

5 0
3 years ago
Read 2 more answers
2. Which calorimeter lost energy?
Anna71 [15]
The kinetic energy bro
6 0
3 years ago
Draw a mechanism for the reaction of water with formic acid. In the box to the left, draw any necessary curved arrows. Show the
dsp73

Answer:

See explanation

Explanation:

When water reacts with formic acid, The following equilibrium is set up;

HCOOH(aq) + H20(l) ⇄ HCOO-(aq) + H30+(aq)

This is because, the water abstracts a proton from formic acid to form its conjugate base, formate ion.

At equilibrium,  the forward is favored.

5 0
3 years ago
Other questions:
  • _______ is another resource often found buried with oil deposits.
    8·2 answers
  • The molal boiling point elevation constant Kb= 2.13 ℃kgmo-for a certain substance X, when 12. g of urea are dissolved in 100. g
    14·1 answer
  • How many grams of KCl are needed to prepare 1.00 L of a 2.00 M solution
    9·1 answer
  • Iron (Fe): [Ar]4s23d6 core electrons valence electrons
    9·2 answers
  • The molality of a solution that is made by dissolving a certain mass of ethanol in 85.4 g of water is 0.950 m. How many moles of
    5·1 answer
  • Which element is the basis for all living things and can combine with other elements in many ways? a.phosphorus
    10·2 answers
  • Which Carbon is the triple bound attached to in 6-ethyl-2-octyne?
    7·1 answer
  • PLEASE HELPPPPPP!<br> I'll appreciate!
    10·1 answer
  • Help please help thank you
    9·1 answer
  • How many moles are in an 8.40 grams of a non electrolyte solution
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!