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PSYCHO15rus [73]
3 years ago
10

NH4NO3 (8) N20 (9) + H20 (1)

Chemistry
1 answer:
Ludmilka [50]3 years ago
3 0

Answer:

NH4NO3 = 1

N2O = 1

H2O = 2

Explanation:

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After an electric sign is turned on, the temperature of its glass goes from 23.5°C to 65.5°C. The sign’s glass has a mass of 905
julia-pushkina [17]

The sign's glass absorbed 25466.7 J

<h3>Further explanation</h3>

Given

The temperature of glass :  23.5 °C to 65.5 °C

mass = 905 g

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Required

Heat absorbed

Solution

Heat absorbed by sign's glass can be formulated :

\tt Q=m.c.\Delta T

ΔT=65.5 - 23.5 = 42

\tt Q=905\times 0.67\times 42\\\\Q=\boxed{\bold{25466.7~J}}

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Answer:

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Explanation:

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Which salt is formed whenHCI is mixed with the sodium hydroxide write formula equation?​
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A stock phenolphthalein solution was prepared by dissolving 0.050 g in a total volume of 100.0 ml. You place one drop (0.050 ml)
devlian [24]

Answer:

the value of molar absorptivity is 229000 M^{-1} cm^{-1}

Explanation:

given data

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solution

we get here concentration that is express as

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put here value

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and here dillution equation is express as

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here c1 and c2 is initial and final concentration

and v1 and v2 is initial and final volume

put here value  

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and

now we get molar by absorbance equation that is

A = E × C ×  l   ................3

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put here value

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