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Inessa [10]
4 years ago
15

In which era did the first fish appear?

Chemistry
1 answer:
VARVARA [1.3K]4 years ago
5 0
C Because Mesozoic Is An Era The First Fish Seen
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For the reaction below, Kp = 1.59 at 100°C. If 1.0 g of SrCO3 is placed in an empty 5.00 L reactor and allowed to reach equilibr
Sergio [31]

Answer:

p_{CO_2}^{eq}=1.59atm

Explanation:

Hello, in this case, one could consider the undergoing chemical reaction as:

SrCO_3(s)\rightleftharpoons SrO(s)+CO_2(g)

Thus, since 1.0 g of strontium carbonate is placed, the equilibrium equation takes the following form, excluding the solid-stated species and considering just the carbon dioxide as it is gaseous:

Kp=p_{CO_2}^{eq}=1.59atm

Hence, since at the beginning there is no carbon dioxide, its pressure at equilibrium equals Kp:

Kp=p_{CO_2}^{eq}=1.59atm

Which was clearly defined above.

Best regards.

8 0
3 years ago
What would the mass of 7 red apples be in kilograms?
Bogdan [553]

Answer:

I think it would be at 0.7 kg mass of the sun

8 0
3 years ago
Which of the following laboratory procedures best illustrates the law of conservation of mass?
11111nata11111 [884]

it would be heating of 32g of s and 56g of Fe to produce 88g of FeS and unused reactants

5 0
3 years ago
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What are some properties of sand paper
Otrada [13]
Rough, tan, grainy, and scratchy are some
7 0
3 years ago
A solution of hydrocloric acid has a molarity of 2.25 M HCl. If a reaction requires 5.80 g of HCI, what
Natali [406]

Answer:

0.071L

Explanation:

From the question given, we obtained the following data:

Molarity of HCl = 2.25 M

Mass of HCl = 5.80g

Molar Mass of HCl = 36.45g/mol

Number of mole of HCl =?

Number of mole = Mass /Molar Mass

Number of mole of HCl = 5.8/36.45 = 0.159mole

Now, we can obtain the volume required as follows:

Molarity = mole /Volume

Volume = mole /Molarity

Volume = 0.159mole/ 2.25

Volume = 0.071L

4 0
4 years ago
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