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Taya2010 [7]
3 years ago
15

Buscar en la Tabla Periódica Sargent Welch (S W) la configuración electrónica de los átomos indicados en a, b y c (para ésto pue

des guiarte por la información que aporta el elemento guía de la tabla periódica en el que se detalla la información que encuentras en cada átomo).
Chemistry
1 answer:
Artemon [7]3 years ago
3 0
Send shivers down your spine
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If it takes 20.4 mL of NaOH(aq) to reach the equivalence point of the titration, what is the molarity of H2SO4(aq)? For your ans
Alik [6]

Question is incomplete, complete question is;

A 34.8 mL solution of H_2SO_4 (aq) of an unknown concentration was titrated with 0.15 M of NaOH(aq).

H_2SO_4(aq)+2NaOH(aq)\rightarrow Na_2SO_4(aq)+2H_2O(l)

If it takes 20.4 mL of NaOH(aq) to reach the equivalence point of the titration, what is the molarity of H_2SO_4(aq)? For your answer, only type in the numerical value with two significant figures. Do NOT include the unit.

Answer:

0.044 M is the molarity of H_2SO_4(aq).

Explanation:

The reaction taking place here is in between acid and base which means that it is a neutralization reaction .

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

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is H_2SO_4

n_1,M_2\text{ and }V_2  are the n-factor, molarity and volume of base which is NaOH.

We are given:

n_1=2\\M_1=?\\V_1=34.8 mL\\n_2=1\\M_2=0.15 M\\V_2=20.4 mL

Putting values in above equation, we get:

2\times M_1\times 34.8 mL=1\times 0.15 M\times 20.4 mL\\\\M_1=\frac{1\times 0.15 M\times 20.4 mL\times 10}{2\times 34.8 mL}=0.044 M

0.044 M is the molarity of H_2SO_4(aq).

4 0
3 years ago
Draw the structure of 5 bromo 1,1,1-trichloro-5 ethyl <br> 2,3 di methyl heptane
andre [41]

5 bromo 1.1.1 -trichloro -5 ethyl 2.3 dimethyl heptane

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3 years ago
Question 22
Mrrafil [7]
HELPPPPPPPPPPPPPPPPPPPPPPPf it is a good idea to
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2 years ago
Why does chemical weathering proceed slowly in a hot desert?
Sergio [31]
Heat speeds up chemical reaction.The less water in the desert, which is a crucial element in performing chemical weathering...

Hope this helps..
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3 years ago
I NEED HELP ASAPPP!! I WILL GIVE YOU A GOOD RATING LOL
ruslelena [56]

Answer:

Yes N3- is correct ion notation. The N element is in the form N2 . Also it is a triple covalent bond and so this correct

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3 years ago
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