MATHEMATICS MIDDLE SCHOOL

33 POINTS POSSIBLE PLEASEEEE HELP b) How many moles of Na2O are required to produce 1.60 x 1024 molecules of NaOH?


Given the following equation: 8 Fe + S8 → 8 FeS
a) What mass of iron is needed to react with 16.0 moles of sulfur?

Answers

Answer 1
Answer:

Answer:

7148.16 grams of iron

Step-by-step explanation:

If you have 16 moles of S8, you have 16*8 moles of iron at 55.845 g/mol Iron. 16*8mol*55.845 g/mol leads moles to cancel and leaves you at 7148.16 grams of iron

Related Questions

Dose anyone know how to solve this
15% of Alina’s workout consisted of cardio exercise. 25% of Dane’s workout consisted of cardio exercise. Which statement must be true?If they worked out for the same amount of time, Dane did 10 more minutes of cardio exercise than Alina.If Alina’s workout was 80 minutes, and Dane’s workout was 48 minutes, they spent the same amount of time on cardio exercise.If both workouts were 60 minutes, Dane spent 8 more minutes on cardio exercise than Alina did.Alina spent less time on cardio exercise than Dane did.
Two numbers have a sum of 99. If one number is p, express the other number in terms of p.
X=3/5 y=1/3 z=Please find x y z
Greatest common factor of 21, 35, 49

Write the product as the product of a whole number and a unit fraction. Please help and explain? 1.) 2 × 3/6 = ? 2.) 3 × 2/8 = ?

Answers

1.) 2x3/6=1 because 2x3 is six so when you put it over six it becomes one whole.2.)3x2/8=6/8 simplified it equals 3/4 because 3x2 is six so when you put it over eight you get 6/8 when you simply by 2 you get 3/4

Luciana says that 1/8 is greater than 1/3 is he correct explain

Answers

No because if you divide 1 by 8 you get .125 and if you divide 1 by 3 you get .33 repeating and . 33 repeating is a larger decimal and that means 1/3 is a larger fraction
First you have to find a common multiple... in this case, 24 then you have to multiply the numerator by the same number that made the denominator 24...which is 3 and 8 so the answer would be....No

Katrina owns a dance studio and offers four classes a day for $28.00 each, with 10 people maximum per class. If she decides to offer a 25% discount on the two morning classes offered one day, and all four classes reach the maximum number of people attending, how much money will Katrina make that day?

Answers

Answer:

$ 980

Step-by-step explanation:

Discount for morning session = 25 % of 28 = 0.25 * 28 = $ 7

Fees for morning class = 28 - 7 = $ 21

Maximum people in one session = 10

Money earned in the morning sessions = 2 * 21 * 10 = $ 420

Money earned in the evening sessions = 2 * 28 * 10 = $ 560

Total money earned that day = 420 + 560 = $ 980

Answer:

$980

Nvm you have to multiply 98 by 10 since there are 10 participants. :)

Step-by-step explanation:

Well, first we wanted to find how much the morning classes cost together. You have to $28 multiplied with 75/100. I am multiplying it with 75/100 instead of 25/100 because the discount cuts off the 25% and the 75% is what you still have to pay. This will give you 2100/100 which is $21. Now you have to multiply $21 with 2 since there are two morning classes. $21 x 2 equals $42. Total for Morning Classes is $42.

Now the other two classes don't have a discount. So all you have to do is $28 x 2 or $28 + $28. This gives you $56. Total for The Other Classes is $56.

Last Step:

Total for Morning Classes + Total for the Other Classes = $56 + $42

                                                                                             = $98

Hope that helped! :)

How to estimate 586-321 two different ways

Answers

 586
-321
........ 
 265
                                      270 or 300
 
                                        Did That Help?

40 is 50% of what number?

Answers

Steps:
1. Do a proportion
40/x equals 50/100
2. 40 times 100 equals 4,000
3. Do 4,000 divided by 50 equals 80
4. Your answer is 80

$43 dinner; 18% gratuity

Answers

Answer:

$50.74.

Step-by-step explanation:

We are asked to find the total cost of dinner, when gratuity is 18%.

The total cost of the dinner would be $43 plus 18% of $43.

\text{The total cost of the dinner}=\$43+(18)/(100)* \$43

\text{The total cost of the dinner}=\$43+0.18* \$43

\text{The total cost of the dinner}=\$43+\$7.74

\text{The total cost of the dinner}=\$50.74

Therefore, the total cost of dinner is $50.74.
you multiply 43/1 by 118/100, as this is a percent proportion. once done multiplying, you should get 50.74. this is the total cost after the gratuity is added
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Four people at Pia’s Pottery Shop each make 29 mugs and 18 pottery bowls. Three people at Jason’a Craft Shop each make the same number of mugs and twice as many bowls. How many objects did the seven people make in all?
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