How many grams of fluorine are required to produce 20.0 grams of FeF3?
Fe + F2 → FeF3

Answers

Answer 1

10.1 g of fluorine is required to produce 20.0 grams of FeF3

first, we have to balance the equation:

2Fe+3F₂⇒2FeF₃

The molar mass of FeF₃ is 112.84g/mol. so the num of mol(n) of FeF₃ present in 20.0g of mass is calculated as shown below:

n=20.0g/112.84g/mol

n=0.1772mol

According to the balanced equation on the macroscopic scale, 2 mol of FeF₃ is produced from 3 mol of F₂.

so, 0.1772 mol of FeF₃ is produced from X mol of F₂. where X is calculated as shown below:

X=3 mol/2mol*0.1772 mol

X=0.2658 mol

Hence, 0.2658 mol of F₂ is required. The molar mass of F₂ is 38.0g/mol

so, the mass of 0.2658 mol of F2 is calculated as:

m=0.2658 mol*38.0g/mol

m=10.1g

Hence, 10.1 g of fluorine is required.

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Related Questions

The cost, in dollars, to produce x vats of ice cream is C ( x ) = 4 x + 4 . When selling them to ice cream shops, the price-demand function, in dollars per vat, is p ( x ) = 88 − 3 x. Find the profit function p(x). How many vats of ice cream need to be sold to maximize the profit? Find the maximum profit. Find the price to charge per vat to maximize profit

Answers

Answer:

92-7x

Step-by-step explanation:

88-3x-4x+4=92-7x

What type of number is 2?
Choose all answers that apply:
A
Whole number
B
Integer
C
Rational
D
Irrational

Answers

The answer Whole number

Find the perimeter, in inches, of the parallelogram

Answers

perimeter of a parallelogram

= 2(l + b)

= 2(8 inches + 6 inches)

= 2(14 inches)

= 28 inches

28 inches

Step-by-step explanation:

length = 8 inches breadth = 6 inchesperimeter of parallelogram = 2 ( length + breadth )= 2( 8 + 6 )= 2 ×14= 28 inches

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Eight randomly selected customers at a local grocery store spent the following amounts on groceries in a single visit: $216, $184, $35, $92, $142, $175, $9, and $57. Let yi denote the amount spent on groceries by a single customer in a single visit. Find the following (give the answers without commas):

a. ∑y
b. (∑y)^2
c. ∑y^2

Answers

Answer:

a) 910

b) 828100

c) 144320

Step-by-step explanation:

a. ∑y

This is the sum of all values of y. So

[tex]\sum y = 216 + 184 + 35 + 92 + 142 + 175 + 9 + 57 = 910[/tex]

b. (∑y)^2

This is the square of the sum, so the square of 910, that we found in the previous item.

910² = 828100

c. ∑y^2

This is the sum of the squares of each amount spent. So

[tex]\sum y^2 = 216^2 + 184^2 + 35^2 + 92^2 + 142^2 + 175^2 + 9^2 + 57^2 = 144320[/tex]

Components used in a cellular telephone are manufactured with nominal dimension of .3 mm and lower and upper specification limits of .295 mm and .305 mm respectively. the x bar and R control charts for this process are based on subgroups of size 3 and they exhibit statistical control, with the center line on the x bar chart at .3015 mm and the center line of the R chart at .00154 mm.
a) Estimate the mean and standard deviation of this process.
b) Suppose that parts below the LSL can be reworked, but parts above the USL must be scrapped. Estimate the proportion of scrap and rework produced by this process.
c) Suppose that the mean of this process can be reset by fairly simple adjustments. What value of the process mean would you recommend? Estimate the proportion of scrap and rework produced by the process at this new mean.

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Xbar = 0.3015 ; Rbar = 0.00154

USL = 0.295 ; LSL = 0.305

For a subgroup size of 3 ; k = 3 ; d2 = 1.693

The mean = xbar = 0.3015 mm

The standard deviation = Rbar / d2 = 0.00154 / 1.693 = 0.0009096

b) Suppose that parts below the LSL can be reworked, but parts above the USL must be scrapped. Estimate the proportion of scrap and rework produced by this process.

P(X < 0.295)

(x - mean) / standard deviation

(0.295 - 0.3015) / 0.0009096 = 0.00003

0.00003 should be reworked.

P(X > 0.305)

1 - P(X < 0.305)

(x - mean) / standard deviation

(0.305 - 0.3015) / 0.0009096 = 3.847

1 - P(Z < 3.847)

1 - 0.99994

= 0.00006

0.00006 should be reworked.

c) Suppose that the mean of this process can be reset by fairly simple adjustments. What value of the process mean would you recommend? Estimate the proportion of scrap and rework produced by the process at this new mean.

Recommended mean = 0.3000 mm

P(X < 0.295)

(x - mean) / standard deviation

(0.295 - 0.3000) / 0.0009096 = 0.00003

0.00003 should be reworked.

P(X > 0.305)

1 - P(X < 0.305)

(x - mean) / standard deviation

(0.305 - 0.3000) / 0.0009096 = 5.497

1 - P(Z < 5.497)

1 - 0.99997

= 0.00003

0.00003 should be reworked.

Business Maths
1703
The following problems were in your worksheet on direct and inverse proportion. Reformulate the
relationships as algebraic expressions and remember to define the variables you use. You do not
have to solve the expressions.
5. The students in class usually drink a lot of water to help with their studies. I have found that
with five students in the class at least 30 litres of water is needed. How much water will be
needed when there are 30 students in the class?​

Answers

Answer:

30/5=6

6*30=180

So 180 litres

Help needed with this

Answers

Answer:

Choice 3 is not a function.

For a set of coordinates to be a function, there must be exactly one y-value for every x-value.

For choice 3, we see that the x-coordinate of "1" has two y-values, 3, and 7.

This means, that choice 3 is NOT a function.

Let me know if this helps!

A gym teacher placed golf balls into 9
buckets so that each bucket had at least 15
balls. How many total golf balls are there?

Answers

Answer:

135

Step-by-step explanation:

9 x 15 = 135

The total number of the golf ball in all buckets is 135 balls using multiply system

Multiply based problem:

What information do we have?

Number of buckets = 9

Number of golf ball in each bucket = 15

Total number of golf ball in all buckets = Number of buckets × Number of golf ball in each bucket

Total number of golf ball in all buckets = 9 × 15

Total number of golf ball in all buckets = 135 balls

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answer asap please!!

Answers

Answer:

61.6 units

Step-by-step explanation:

C (-8,-10)

D (8,10)

E (-8,10)

find the distance between the following points

CD = 25.6

DE = 16

EC = 20

Add them all up

61.6 units

Evaluate using logarithm table, log (0.65)

Answers

The answer is -0.18708664335

Classify each special right triangle in the length ratio of (Side1 : Side2 : hypotenuse)

Answers

Answer: i added a pic of the answers

Step-by-step explanation:

solve

1. 1/3n=4
what is n?

Answers

See the photo attached below

Pl help it’s for a grade

Answers

Answer:

c

Step-by-step explanation:

According to the National Center for Education Statistics, there were 13.2 million undergraduate students enrolled in degree-granting postsecondary institutions in Fall 2000. In Fall 2014, the enrollment was 17.3 million students. Assuming this relationship grows linearly, write a linear function that models the undergraduate enrollment in postsecondary institutions
x years after 2000

Answers

Answer:

13.2 + 0.292X = Y

Step-by-step explanation:

Given that, according to the National Center for Education Statistics, there were 13.2 million undergraduate students enrolled in degree-granting postsecondary institutions in Fall 2000, while in Fall 2014, the enrollment was 17.3 million students, assuming this relationship grows linearly, a linear function that models the undergraduate enrollment in postsecondary institutions X years after 2000 would be carried out as follows:

2014-2000 = 14

17.3 - 13.2 = 4.1

4.1 / 14 = 0.292

Thus, each year 292,000 new students are enrolled in postsecondary institutions. Therefore, the function that determines what is requested would be the following:

13.2 + 0.292X = Y

A production facility employs 10 workers on the day shift, 8 workers on the swing shift, and 6 workers on the graveyard shift. A quality control consultant is to select 3 of these workers for in-depth interviews. Suppose the selection is made in such a way that any particular group of 3 workers has the same chance of being selected as does any other group (drawing 3 slips without replacement from among 24).

Required:
a. How many selections result in all 5 workers coming from the day shift?
b. What is the probability that all 5 selected workers will be from the day shift?
c. What is the probability that all 5 selected workers will be from the same shift?
d. What is the probability that at least two different shifts will be represented among the selected workers?
e. What is the probability that at least one of the shifts will be unrepresented in the sample of workers?

Answers

Answer:

252 ; 0.00593 ; 0.0074 ; 0.9926 ; 0.347

Step-by-step explanation:

A.)

n = 10 ; r = 5

Required outcome :

nCr = n! ÷ (n-r)!r!

10C5 = 10! ÷ (10-5)!5!

(10*9*8*7*6) / (5*4*3*2*1)

= 252

B.)

Total possible outcome : 24C5 = 42504

P(all will be from day shift) = 252 / (24C5) = 0.00593

C.)

P(all will be from the same shift) :

[(10C5)+(8C5)+(6C5)] ÷ 24C5

(252 + 56 + 6) / 42504 = 0.0074

D.)

Probability that at least 2 different shift will be represented :

1 - P(all will be from the same shift)

1 - 0.0074 = 0.9926

D.)

Probability that atleast one of the shift will be unrepresented :

(10+6C5) + (8+6C5) + (10+8C5) - (10C5)+(8C5)+(6C5)

[16C5 + 14C5 + 18C5 - 10C5 + 8C5 + 6C5] ÷ 24C5

(4368 + 2002 + 8568 - 252 + 56 + 6) / 42504

= 14748 / 42504

= 0.347

Please answer :)

( Will give brainlst)

Answers

Answer: 10

Step-by-step explanation:

Step-by-step explanation:

all the processes are shown in the picture hope that helps

colin did the work to see if 10 is a solution to the equatio

Answers

Um okay good to know

D'Andre earns some money by helping people with their yards. It takes him an average of 2 hours to weed a flowerbed and an average of 1.5 hours to mow and edge a lawn. He can work no more than 6 hours a day. He charges $60 to weed a flowerbed and $75 to mow and edge a lawn. He needs to cover his expenses of $150 to make a profit. Write a system of inequalities that would help determine how many flowerbeds and lawns he could complete on a given day.
______________________________
plz help its due like rn so I'll give brainliest ​

Answers

Answer:

3 flowerbeds and 5 lawns.

Step-by-step explanation:

I promise.

Is borrowing money a

Delegated power
Reserved power
Concurrent power

Answers

I believe that it is a concurrent power

Answer:

C. concurrent power

Step-by-step explanation:

Such powers are called concurrent powers. These include the power to tax, spend, and borrow money. State governments operate their own judicial systems, charter corporations, provide public education, and regulate property rights.

Find the slope of the line that passes through (1, 14) and (4,10),
Simplify your answer and write it as a proper fraction, improper fraction, or integer,

Answers

the slope is -4/3. 14-10=4, 1-4=-3

Answer: the slope is -4/3

Step-by-step explanation:

what is loss and profit

Answers

Loss is when you lose something and profit is when you gain off of it.

Answer:

The profit and loss (P&L) statement is a financial statement that summarizes the revenues, costs, and expenses incurred during a specified period, usually a fiscal quarter or year. These records provide information about a company's ability or inability to generate profit by increasing revenue, reducing costs, or both.

Step-by-step explanation:

Calculating Profit and Loss. The actual calculation of profit and loss in a position is quite straightforward. To calculate the P&L of a position, what you need is the position size and the number of pips the price has moved. The actual profit or loss will be equal to the position size multiplied by the pip movement.

What are three fractions that are equivalent to 1.

Answers

2/2 , 3/3 , 4/4 ( anything over its self)

What is the area of a rectangle
7 inches long and 3 inches wide?

Answers

Answer:

21

Step-by-step explanation:

you do 7x3

math help pls tsnsnnsnsshs

Answers

Answer:

68°

Step-by-step explanation:

90°(right angle)-22°(angle 5 measurement) = 68°

1. Socks are on sale at 10% discount. What is the sale price of a pair of socks originally
marked #125.00?​

Answers

Answer:

10/100 = x/125

1250 = 100x

1250/100 = 100x/100

12.5 = x

125 - 12.5 = 112.5

the sale price is $112.5

1. The temperature of a body rises from -6°c to 5°c. By how much degrees does it rises?

Answers

It rises 11 degrees

Step by step explanation

Which statement is true about compound interest?

The interest is figured on the principal only.
The amount in the account grows slower than with simple interest of the same rate.
The interest can be compounded over different time intervals.
The interest in most banks is not calculated using compound interest.

Answers

THE LAST OME IS CORRECT !!!

Compound interest is  the interest calculated using the principal and the interest over a period of time.

The statements that are true about compound interest are:

The interest can be compounded over different time intervals.

The interest in most banks is not calculated using compound interest.

What is compound interest?

It is the interest we earned on the interest.

The formula for the amount earned with compound interest after n years is given as:

A = P [tex](1 + rn)^{nt}[/tex]

P = principal

r = rate

t = time in years

n = number of times compounded in a year.

We have,

The interest is figured on the principal only.

This is not true because we calculate the compound interest on the interest as well.

The amount in the account grows slower than with simple interest of the same rate.

This is not true because we are calculating the interest on the principal and interest together.

The amount with compound interest will be more than the amount with simple interest.

The interest can be compounded over different time intervals.

This is true because we can have different time intervals such as,

monthly compounded, quarterly compounded, bimonthly compounded, and yearly compounded.

The interest in most banks is not calculated using compound interest.

This is true because banks don't calculate using compound interest.

Thus,

The statements that are true about compound interest are:

The interest can be compounded over different time intervals.

The interest in most banks is not calculated using compound interest.

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Ally bought 5 different cakes for her birthday. His friends ate 3 1/4 of the amount of cake. Then he gave 1/2 of the cake to his grandmother. How much cake does Ally have left?

Answers

Answer:

7/8 of a cake

Step-by-step explanation:

4 4/4 - 3 1/4 = 1 3/4

7/4 x 1/2 = 7/8

T varies directly as the square of P and inversely as Z and T=12 when P=3 and Z=6

5. Using k as the constant of variation, which of the following is the equation of variation?
A. T=
\frac{kp {}^{2} }{z}
z
kp
2



B. T=
kpz {}^{2}kpz
2

C. T=
\frac{kz}{p {}^{2} }
p
2

kz


D. T=
\frac{pz {}^{2} }{k}
k
pz
2




6. Which of the following is the value of the variation constant:
A. 6
B. 8
C. 10
D. 12

7. Which of the following is twice the value of T when P=9 and Z=6?
A. 108
B. 216
C. 54
D. 36

Answers

Answer:

A. [tex] T= \frac{KP^2}{Z}[/tex]

D. K = 8

B. 216

Step-by-step explanation:

Q. T varies directly as the square of P and inversely as Z and T=12 when P=3 and Z=6

Solution:

According to the given information:

T varies directly as the square of P.

[tex] T\alpha P^2..... (1)[/tex]

T varies inversely as Z.

[tex] T\alpha \frac{1}{Z} ..... (2)[/tex]

Combining equations (1) & (2)

[tex] T\alpha \frac{P^2}{Z}[/tex]

[tex] T= \frac{KP^2}{Z}[/tex]

(Where K is proportionality constant)

(This is the equation of variation)

Plug T=12, P=3 and Z=6 in the above equation of variation, we find:

[tex] 12= \frac{K(3)^2}{6}[/tex]

[tex] 12= \frac{K\times 9}{6}[/tex]

[tex] K= \frac{12\times 6}{9}[/tex]

[tex] K= \frac{72}{9}[/tex]

[tex] K= 8[/tex]

So, the value of the variation constant = 8

Next, plug P=9, Z=6 and K = 8 in the above equation of variation, we find:

[tex] T= \frac{8(9)^2}{6}[/tex]

[tex] T= \frac{8\times 81}{6}[/tex]

[tex] T= \frac{648}{6}[/tex]

[tex] T= 108[/tex]

[tex] 2T= 2\times 108[/tex]

[tex] 2T= 216[/tex]

So, 216 is twice the value of T.

Jefferson’s class was studying sunflowers. They learned that sunflowers are able to make their own food. Which parts of a sunflower collect most of the sunlight needed to make food?

Answers

The leaf is the part of the sunflower that collects the most sunlight needed to make food.
Other Questions
3x + 7x - 8 = -19 can someone please help me with this math problem PLEASE HELP ASAP!!! IT'S ON THE SECRET GARDEN. WILL MARK BRINLIESTYou will draft your own original piece of writing based on the novel you have read. You will demonstrate the use of the techniques learned in this lesson in your writing.View the grading rubric as you complete your assignment. This is your guide to a super submission.You have three options to choose from:You will write a three-paragraph story using your unique authors style by using concrete language in your descriptions, deliberately using words for their positive or negative connotations, and varying your syntax to create a specific feeling or tone.You have three options to choose from:You can create the back story for your novel. The back story gives the background information of what happened before the novel begins.You can create the after story for your novel. The after story tells what happens in the characters lives after the novel ends.You can rewrite the ending of the novel. This way, you can have it end however you wish!As you write, keep in mind that you create authors style with your syntax, concrete language, and deliberate choice of words.No matter which option you choose, it should be a minimum of three paragraphs and marked as follows:Use a thesaurus to find specific words that reveal a negative or positive connotation. Highlight in blue. If you cannot highlight, mark them by writing negative or positive connotation, in parentheses, next to the word.Use at least two concrete (sensory) descriptions in your writing. Highlight in pink. If you cannot highlight, mark the descriptions by writing concrete description, in parentheses, next to your description.Use at least two short sentences to reflect a specific feeling or attitude. Highlight in yellow. If you cannot highlight, mark the sentences by writing short sentences, in parentheses, next to the sentences.Use at least two long sentences to reflect a specific feeling or attitude. Highlight in green. If you cannot highlight, mark the sentences by writing long sentences, in parentheses, next to the sentences. Solve for x in the equation X2 - 10x+ 25 = 35.oX Amy and Darren each solved the following system of equations using a different methody=0.5x + 14x -2y=4 Is either of them correct? Explain your reasoning and give the correct solution to the system. Who ever get it right I will give Brainly thx u m - 12 = -32could someone solve this please help me with geometry question :) which is an example of a simple sentence? 1. we should go first to the beach and then to a movie. 2. we should leave for the beach now because we want to get back early. 3. shall we go the beach today, or shall we see a movie?4. although the beach sounds like fun, lets go to the movie today. What is the equivalent measure of 2.8 grams in hectograms? I'LL GIVE BRAINLIEST: What is the area of the real object that the scale drawing models? If gasoline costs $3.28 per gallon, how much would 15.5 gallons cost? in each diagram, BD bisects Group that contributed to American society and culture? Find the distance between the two points rounding to the nearest tenth (if necessary).(-3,0) and (5, -3) The partnership of Keenan and Kludlow paid the following wages during this year: M. Keenan (partner) $85,000 S. Kludlow (partner) 75,000 N. Perry (supervisor) 53,000 T. Lee (factory worker) 34,600 R. Rolf (factory worker) 29,800 D. Broch (factory worker) 6,900 S. Ruiz (bookkeeper) 25,400 C. Rudolph (maintenance) 5,100 In addition, the partnership owed $200 to Rudolph for work he performed during December. However, payment for this work will not be made until January of the following year. The state unemployment tax rate for the company is 2.95% on the first $9,000 of each employee's earnings. Compute the following:a. Net FUTA tax for the partnership for this year.b. SUTA tax for this year. But this on your own sentences please how many atoms of helium are required to equalise themass of a silver atom ? If the return on capital is 12% and the price for loanable funds is 14%, then:____.a. currently businesses will not borrow loanable funds to invest in capital goods. b. the return on capital will fall as the supply of capital decreases over time, and simultaneously, the price for loanable funds will increase as savers make even more savings available. c. eventually the return on capital will decrease to the point where businesses will find it profitable to borrow loanable funds Need answer pizza ??? 000000000000000000000000yes