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Norma-Jean [14]
3 years ago
7

Calculate the number of grams of Fe that are produced when 57 grams of FeO is reacted with excess aluminum in the following reac

tion: 2Al(s) + 3FeO(s) -> 3Fe(s) + Al₂O₃(s)
Chemistry
1 answer:
Dafna11 [192]3 years ago
6 0

Answer:

Mass of Fe produced = 44.7 g

Explanation:

Given data:

Mass of Fe produced in gram = ?

Mass of FeO react = 57 g

Solution:

Chemical equation:

2Al + 3FeO  →  3Fe + Al₂O₃

Number of moles of FeO:

Number of moles = mass/ molar mass

Number of moles = 57 g/ 71.844 g/mol

Number of moles = 0.8 mol

Now we will compare the moles of Fe with FeO from balance chemical equation.

                    FeO          :          Fe

                       3            :           3

                    0.8            :          0.8

Mass of Fe:

Mass = Mass × molar mass

Mass = 0.8 mol ×  55.845 g/mol

Mass = 44.7 g

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aleksklad [387]

Answer:

Distance: 16m Displacement: 8m North

Explanation:

Total distance is the total amount traveled, regardless of direction. So, you would just add 12 and 4 to get a total distance of 16m. Displacement is the distance/direction from the start to the end point, regardless of which way you got there. So, to find displacement, you just subtract:

12m North - 4m South = 8m North

** I could be wrong so definitely double check this answer with a similar question**

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2 years ago
a faucet is leaking water at a speed of 5 drops per minute. If 1 ml is equivalent to 10 drops, how many liters of water will be
nikdorinn [45]

Answer: 0.72 litres of water is wasted in one day.

Explanation:

First you need to find out how many minutes are in a day. Do this by multiplying the number of minutes in an hour (60) by the number of hours in a day (24). 24 x 60 = 1440. If the faucet is dripping at 5 drops per minute, then multiply 5 by the number of minutes in a day (1440) to see how many drops drip in one day. 5 x 1440 = 7200. Now we need to figure out how many mL fo water that is. if 10 drops is 1 mL, then we need to divide the total number of drops (7200) by 10. 7200 divided by 10 is 720. That means 720 mL of water is dripping per day. Finally, we must convert mL to litres. There are 1000 mL in one litre, so divide 720 by 1000. The final answer is 0.72

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Happy to help! Have a great evening.

~Brooke❤️
8 0
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