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Juli2301 [7.4K]
3 years ago
7

La suma de los números de masa de tres isótopos es 126 y la suma de los números de neutrones es 60. Hallar la configuración elec

trónica de uno de los isótopos, si su carga eléctrica es 1- . b) Determine grupo y periodo para dicho elemento. c) Determine los cuatro números cuánticos para el ultimo electrón. d) Si el elemento que hallaron se une con el elemento flúor que tipo de enlace formará.
Chemistry
1 answer:
irga5000 [103]3 years ago
7 0
Ithe correct answer is B good luck
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<span>250 ml * 1.25 g/ml * 3.74 j/g-K * 9.2 K = 10.752 kJ Pretty much, all you need to do here is multiply all of these out to get your final answer. Not all questions are this easy, but this is certainly one of them.</span>
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An aqueous solution of barium hydroxide is standardized by titration with a 0.102 M solution of perchloric acid. If 10.3 mL of b
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<u>Answer:</u> The molarity of barium hydroxide solution is 0.118 M.

<u>Explanation:</u>

To calculate the concentration of acid, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

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n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is Ba(OH)_2

We are given:

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Putting values in above equation, we get:

1\times 0.102\times 24.0=2\times M_2\times 10.3\\\\M_2=0.118M

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Mass = 35g Volume = 7cm3 What is the Density?​
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Answer:

5 g/cm^3

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(☞ ಠ_ಠ)☞

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hope it helps

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