The answer is B
Vaporization
Answer:
0.129 L = 129.0 mL.
Explanation:
- NaOH neutralizes acetic acid (CH₃COOH) according to the balanced reaction:
<em>NaOH + CH₃COOH → CH₃COONa + H₂O. </em>
- According to the balanced equation: 1.0 mole of NaOH will neutralize 1.0 mole of CH₃COOH.
<em>no. of moles of CH₃COOH = mass/molar mass </em>= (2.0 g)/(60 g/mol) = <em>0.033 mole. </em>
<em>
</em>
no. of moles = (0.258 mol/L)(V)
- At neutralization: no. of moles of NaOH = no. of moles of CH₃COOH
∴ (0.258 mol/L)(V) = 0.033 mole
<em>∴ The volume of NaOH</em> = (0.033 mole)/(0.258 mol/L) = <em>0.129 L = 129.0 mL.</em>
Explanation:
The absolute temperature is the lowest possible temperature in the universe. At this temperature, all atoms become motionless and cease to move.
The value of the absolute zero is pegged at -273.16°C.
- It is the lowest limit of the coldness of a body.
- Nothing can be colder than a body at absolute temperature.
- Many researches are underway to take advantage of this temperature value for scientific purpose.
- Thermodynamically, all process stops at this temperature.
- When a body is brought close a body at absolute zero, it can suffer cryogenic burn due to heat transfer.
Answer:
D. period is reciprocal of frequency.
Explanation:
<h2>Answer:</h2>
The phase of matter will be known as the forth phase of matter, plasma.
<h3>Explanation:</h3>
There are 4 phases of matters:
- Gas: The freely moving molecules, having no definite volume and shape.
- Liquid: The loosely bonded molecules, having a definite volume but not shape.
- Solid: Highly packed molecules with definite volume and shape.
- Plasma: The more like gases phase, containing freely moving electrons and positive ions.
Hence according to the question description and given above matter phases, the phase of that sample will be plasma.
