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Lapatulllka [165]
3 years ago
12

(reposted) thank you :)))

Chemistry
1 answer:
Anna007 [38]3 years ago
5 0

Answer:

  1. C= 8
  2. H= 20
  3. C= 8
  4. O=16
  5. Give brainlist

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The relation between molarity and normality is expresses as: a) M = N x g.e.w/g.m.w
Arada [10]

Answer: Molarity=Normality\times \frac{gew}{gmw}

Explanation:

Molarity is defined as the number of moles dissolved per liter of the solution.

Molarity=\frac{\text {moles of solute}}{\text {Volume in L}}

{\text {moles of solute}=\frac{\text {given mass}}{\text {Molar mass}}  

Normality is defined as the number of gram equivalents dissolved per liter of the solution.

Normality=\frac{\text {gram equivalents of solute}}{\text {Volume in L}}

{\text {gram equivalents of solute}}=\frac{\text {given mass}}{\text {Equivalent mass}}

Thus Molarity=Normality\times \frac{\text {Equivalent mass}}{\text {Molar mass}}

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3 years ago
Name one way in which oxygen from the air reacts slowly with another materal
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What type of reaction is Pb(NO3)2 (aq) + 2KI (aq) →PbI2 + 2KNO3 (aq)
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Answer:

Precipitation Reactions

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El oxígeno y el azufre reaccionan con el cobre para formar óxido de cobre (CuO) y sulfuro de cobre (CuS), respectivamente. ¿Qué
oksian1 [2.3K]
Yes it need to be like that cause when it like that it like that
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Electromagnetic Spectrum Activity Worksheet
saveliy_v [14]

2. Example of electromagnetic energy is X-Rays.

Type of electromagnetic energy is radiation/ gamma rays.

3. Example of electromagnetic energy is Radio.

Type of electromagnetic energy is Electromagnetic spectrum

Explanation:

  • Electromagnetic Energy Example Two
  • Activity:  X-Rays
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4 years ago
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