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ladessa [460]
1 year ago
14

Grams in 1.083e+24 Molecules Na BR Please help explain why

Chemistry
1 answer:
adoni [48]1 year ago
6 0

Answer:

185 gms o NaBr

Explanation:

Na Br  mole weight = 22.989 +79.904 = <u>102.893  gm/mole</u>

1.083 x 10^24  molecules / 6.022 x 10^23 molecules / mole = <u>1.798 moles</u>

102.893  *  1.798 = 185 gms

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Answer:
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Solution:

The equation used for this problem is as follow,

                                                  Q  =  m Cp ΔT   ----- (1)

Where;
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            m  =  mass  =  267 g

            Cp  =  Specific Heat Capacity  =  ??

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Solving eq. 1 for Cp,

                                 Cp  =  Q / m ΔT


Putting values,
                                 Cp  =  300 J / (267 g × 12 °C)

                                 Cp  =  0.093 J.g⁻¹.°C⁻¹
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hammer [34]
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What is the energy of an electromagnetic wave with a frequency of 8•10^12 Hz?
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\boxed{\boxed{E = 5.3008*10^{-21}\:Joule}}\end{array}}\qquad\checkmark

I Hope this helps, greetings ... DexteR! =)

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