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Zina [86]
2 years ago
6

Need help ASAP please show your work

Chemistry
1 answer:
VikaD [51]2 years ago
4 0

Answer:

q = 14049 J

Explanation:

q = m*c*(t2-t1)

q = 350 * 0.892 * (70-25) =

312.2 * 45 = 14049 J

I might be getting a little confused but I could be right.

Hope this helps!

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For the following reaction if you have 13.2g of CO and 42.7g of Fe2O3, which is the limiting reagent with regards to the Fe prod
MrRissso [65]

Answer: CO is a limiting reagent with regards to the Fe production.

Explanation:

Fe_2O_3(s)+3CO(g)\rightarrow 2Fe(s)+3CO_2(g)

Moles of CO = \frac{\text{mass of CO}}{\text{molar mass of CO}}=\frac{13.2 g}{28 g/mol}=0.4714 mol

moles of Fe_2O_3=\frac{\text{mass of} Fe_2O_3}{\text{molar mass of}Fe_2O_3}=\frac{42.7 g g}{159.7 g/mol}=0.2673 mol

According to reaction , 3 mole of CO reacts with 1 mole of Fe_2O_3 then , 0.4714 moles of CO will react with : \frac{1}{3}\times 0.4714 moles of Fe_2O_3 that is 0.1571 moles.

0.4714 moles of CO will react with 0.1571 moles of Fe_2O_3 which means that CO is present in limited amount acting as limiting reagent.

Mole remaining of Fe_2O_3 = 0.2673 mol - 0.1571 mol = 0.1102 mol

Hence, CO is a limiting reagent and  Fe_2O_3 is an excessive reagent.

8 0
3 years ago
Triphenylmethane can be prepared by reaction of benzene and chloroform in the presence of AlCl3. Draw curved arrows to show the
never [62]

Answer:

Reaction follows frieldel-craft alkylation mechanism

Explanation:

  • Reaction between benzene and chloroform in the presence of AlCl_{3} follows friedel-craft alkylation of benzene
  • Firstly, one equivalent of benzene adds onto chloroform by replacing one equivalent of Cl from chloroform.
  • Remaining two equivalent of Cl in chloroform are similarly replaced by two equivalent of benzene to produce triphenylmethane
  • Reaction mechanism has been shown below

5 0
2 years ago
In a living organism, what is a tissue
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Answer:

Tissue is a group of cells.

Explanation:

Human body tissue consists of groups of cells with a similar structure working together for a specific function.

Human body tissue is another way of describing how our cells are grouped together in a highly organized manner according to specific structure and function. These groupings of cells form tissues, which then make up organs and various parts of the body. For example, it's easy to see and feel muscle in the body. Muscle is one of the four types of human body tissue. In this lesson, learn more about the types of tissue and how each functions for a different purpose.

Please mark Brainliest! :)

3 0
3 years ago
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The answer is false.
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The forces of attraction between particles in their gaseous state seems to be nonexistential.
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