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Anastaziya [24]
3 years ago
6

sound travels slower in colder air than it does in warmer air why does the speed of sound depend on air temperature

Chemistry
2 answers:
irinina [24]3 years ago
7 0

Answer:

Air molecules have more energy at higher temperature which means they vibrate faster

Marta_Voda [28]3 years ago
6 0

Answer:

Explanation:

The speed of sound in the air mainly depends on temperature. At high altitudes, where it is much colder, sound travels slower. The higher the temperature, the faster the air molecules are moving to begin with, and the quicker they bump into each other as a sound wave passes through.

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A substance produces a solution with negative compounds when mixed with water.\
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Answer:

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Explanation:

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8 0
3 years ago
Im not entirely sure how to do this would someone mind answering it for me?
Fofino [41]
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6 0
3 years ago
A student was asked to determine the concentration of ammonia, a volatile substance used in the clinical setting as a respiretor
UNO [17]

This question is describing two chemical equations whereby the concentration of ammonia has to be determined. The first reaction is between 25.00 mL of ammonia and 50.00 mL of 0.100-M HCl whose excess was neutralized with 21.50 mL of 0.050-M Na₂CO₃ and thus, the concentration ammonia in the cloudy solution was determined as 0.114 M.

First of all we need to go over the titration of the excess HCl with Na₂CO₃ by writing the chemical equation it takes place when they react:

2HCl+Na_2CO_3\rightarrow 2NaCl+CO_2+H_2O

Whereas the mole ratio of HCl to Na₂CO₃ is 2:1 and the volume of the HCl leftover is determined as follows:

V_{HCl}^{leftover}=\frac{2*0.050M*21.50mL}{0.100M} =21.5mL

Next, we infer that the consumed volume of HCl by the ammonia solution was:

V_{HCl}^{consumed}=50.00mL-21.50mL=28.5 mL

Then, we write the chemical equation that takes place between ammonia and HCl:

HCl+NH_3\rightarrow NH_4Cl

Whereas the mole ratio is now 1:1, which means that the concentration of ammonia was:

M_{NH_3}=\frac{28.5mL*0.100M}{25.00mL}\\\\ M_{NH_3}=0.114M

Learn more:

  • (Titration) brainly.com/question/15687419
  • (Titration) brainly.com/question/25328286
8 0
2 years ago
What is the molarity of a solution that contains 30 grams of naoh in 500 milliliters of solution?
Fudgin [204]
Molar mass NaOH = 39.997 g/mol

number of moles solute:

n = mass of solute / molar mass

n = 30 / 39.997

n = 0.00075 moles of NaOH

Volume in liters:

500 mL / 1000 => 0.5 L

Therefore :

M = moles of solute / volume ( L )

M = 0.00075 / 0.5

M = 0.0015 mol/L
4 0
3 years ago
Read 2 more answers
Will mark as Brainliest.
xeze [42]
Spontaneous reaction.


3 0
4 years ago
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