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MrMuchimi
2 years ago
9

What volume will 3.0 moles of O2 gas occupy at S.T.P?

Chemistry
1 answer:
REY [17]2 years ago
6 0

Answer:

3 moles of oxygen at STP will occupy a volume of 3×22. 4=67. 2 L.

Explanation:

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The density of water at 400C is 0.992 g/mL What is the volume of 27.0 g of water at this temperature?
pantera1 [17]

Answer:

Volume of water at this temperature is 27.2 mL

Explanation:

We know that density=\frac{mass}{volume}

Here density of water is 0.992 g/mL

Here mass of water is 27.0 g

So volume=\frac{mass}{density}

                         = \frac{27.0g}{0.992g/mL}

                         = 27.2 mL

7 0
3 years ago
Calculate the amount of ATP in kg that is turned over by a resting human every 24 hours. Assume that a typical human contains ~5
valentinak56 [21]

Answer:

The correct answer is 66.35 kilograms.

Explanation:

Based on the data given in the question, the energy consumed by the body of a human being is 50%. Based on the given data, the energy consumed in a day is 8000 kJ, 50 percent is the energy transfer efficiency. Thus, the consumption of total energy is 4000 kJ, and for the transformation of ADP to ATP, the energy involved is 30.6 kJ per mole.  

Hence, the total ATP produced in the process is,  

ATP = 4000 kJ / 30.6 kJ/mol

= 130.7189 mol.  

Thus, with the energy transfer efficiency of 50 percent, the total moles of ATP produced is 130.7 mol.  

The mass of ATP can be calculated by using the formula,  

moles = mass/molecular mass

The molecular mass of ATP is 507.18 g per mol

Now by putting the values we get,  

mass of ATP = 130.7189 mol * 507.18 g/mol

= 66298.011 g or 66.298 kg

It is mentioned that human comprise 50 g of ATP or 0.05 kg of ATP. Therefore, the sum of the available ATP will be.  

= Total production of ATP + Total ATP available

= 66.298 kg + 0.05 kg

= 66.348 kg

Hence, the sum of the ATP that is turned over by a resting human in a day is 66.35 kg.  

5 0
3 years ago
After taking a hot shower you may notice that the room gets steamy and the mirror is foggy you might also notice that there is m
ruslelena [56]

Answer:the temperature might increase because of the humidity in the room so everything gets goofy and moist

Explanation:

6 0
3 years ago
Urgent help will be much appreciated
Scorpion4ik [409]

Answer:

b c d a

Explanation:

hgsautaahhttdioirtrf

6 0
3 years ago
1. Explain what happens to the train cars when the engine car begins moving to the left. In your response, describe the role pla
vivado [14]

The train cars moves in the same direction when the engine car begins

moving to the left.

<h3>What is Law of magnetism?</h3>

The law of magnetism states that like poles repel and unlike poles attract.

In substances which have magnetic field, they are known to attract each

other.

The engine and train car are highly magnetized which results in them

moving in the same direction when they are in close contact with one

another.

Read more about Magnetism here brainly.com/question/12529206

4 0
2 years ago
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