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S_A_V [24]
3 years ago
9

Find the mass in grams of 2.00 x 10^23 molecules of C10 h15 09.( called penguinone because its structure looks like a penguin.)

Chemistry
1 answer:
Dafna1 [17]3 years ago
6 0
2.00x10^23 x 1 mol/6.02x10^23 molecules x 279.25g C10H15O9/1 mol 
= 92.77 grams 
Molar mass of C10H15O9 is 279.25 grams. 

So the answer is 92.77 grams 
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the ph of an aqueous solution of sulphuric acid which is 5*10^5 mol in concentration is basic in nature

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3 years ago
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Explanation:

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Plants get energy from the​
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2 years ago
¿Cuál de las siguientes configuraciones globales corresponde a un elemento químico que se comporta como metal? 1 punto [He]2s2 2
yuradex [85]

Answer:

[Ne]3s2

Explanation:

ahora tenemos que mirar cada una de las configuraciones electrónicas de cada átomo de cerca antes de tomar una decisión.

considerando la configuración electrónica más externa de cada una de las especies mostradas;

para la primera configuración, ns2 np6 corresponde a un gas noble.

para la segunda configuración ns2 np3 corresponde a un elemento no metálico del grupo 5.

para la tercera configuración, ns2 corresponde a un elemento metálico del grupo 2.

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5 0
3 years ago
Please help me with this. (: I'd appreciate it.
Soloha48 [4]

Answer:

The answer to your question is:  ΔH = -283 kJ/mol, first option

Explanation:

Reaction

                CO  +  O₂     ⇒     CO₂

ΔH = ∑H products - ∑H products

ΔH = -393.5 - (-110.5 + 0)

ΔH = -393.5 + 110.5

ΔH = -283 kJ/mol

4 0
3 years ago
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