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oksano4ka [1.4K]
3 years ago
14

Number of electrons present in 3.6mg of NH₄⁺?​

Chemistry
1 answer:
nata0808 [166]3 years ago
4 0
0.0036g of NH4+ x 1mol of NH4+/18.04g of NH4+ x 6.02*10^23 electrons of NH4+/1mol of NH4+

= 1.20 x 10^20 electrons of NH4+
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A piece of stainless steel weighing 1.55 g absorbs 141 J of heat energy when its temperature increases by 178oC. What is the spe
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Answer:

= 0.551J/(g°C)

Explanation:

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The formula

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where ,

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substitute all the value in the equation (1)

C = \frac{141}{1.55 \times 178 } \\\\= 0.511J /(g^\circ C)

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4 years ago
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4 years ago
What is the answer? show proof I will report you if you answer for the points​
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Answer:

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