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Talja [164]
2 years ago
7

What mass of hydrogen gas can be produced by 6.0 mol of aluminum with hydrochloric acid?

Chemistry
1 answer:
Agata [3.3K]2 years ago
3 0
2Al + 6HCl = 2AlCl₃ + 3H₂

m(H₂)=3M(H₂)n(Al)/2

m(H₂)=3*2.0g/mol*6.0mol/2=18.0 g
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Fe2(SO4)3 +__BaCl2 → __BaSO4 +_<br> FeCl3
Elenna [48]

Answer:

Fe2(SO4)3 + 3BaCl2 → 2FeCl3 + 3BaSO4

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2 years ago
Balance Fe3O4 + H2 = Fe + H2O
Snezhnost [94]
Fe3O4 + 4H2 = 3Fe + 4H2O

Fe3O4 + 4H2SO4 = Fe2(SO4)3 + FeSO4 + 4H2O
3 0
2 years ago
A gas has a volume of 52.1 L at 1.55 atm. What is the new volume at a pressure of 2.00 atm?
Deffense [45]

Answer: 40.38 L

Explanation:

Formula: P1V1 = P2V2

(1.55)(52.1) = (2.00)(x)

80.755 = 2x

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6 0
3 years ago
__is when two genetic sequences bind together because of the hydrogen bonds that form between the base pairs ​
Anettt [7]

Answer:

I would say that it is the bond called complementary hydrogen bonds

Explanation:

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6 0
3 years ago
Salicylic acid (C7H6O3) reacts with acetic anhydride (C4H6O3) to form acetylsalicylic acid (C9H8O4).
zavuch27 [327]

Answer : The correct option is, (B) Salicylic acid

Solution :

First we have to calculate the moles of salicylic acid and acetic anhydride.

\text{Moles of }C_7H_6O_3=\frac{\text{Mass of }C_7H_6O_3}{\text{Molar mass of }C_7H_6O_3}=\frac{70g}{138.121g/mole}=0.507moles

\text{Moles of }C_4H_6O_3=\frac{\text{Mass of }C_4H_6O_3}{\text{Molar mass of }C_4H_6O_3}=\frac{80g}{102.09g/mole}=0.783moles

Now we have to calculate the limiting and excess reagent.

The balanced chemical reaction is,

2C_7H_6O_3(aq)+C_4H_6O_3(aq)\rightarrow 2C_9H_8O_4(aq)+H_2O(l)

From the balanced reaction we conclude that

As, 2 moles of salicylic acid react with 1 mole of acetic anhydride

So, 0.507 moles of salicylic acid react with \frac{0.507}{2}=0.2535 mole of acetic anhydride

The excess of acetic anhydride = 0.783 - 0.2535 = 0.5295 moles

That means the in the given balanced reaction, salicylic acid is a limiting reagent because it limits the formation of products and acetic anhydride is an excess reagent.

Hence, the limiting reagent is, salicylic acid.

7 0
2 years ago
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