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aleksandrvk [35]
3 years ago
15

40 g of sodium reacts with ____ g of chlorine to produce 117 g of sodium chloride *

Chemistry
1 answer:
Romashka-Z-Leto [24]3 years ago
7 0

Answer:

9.26g of chlorine

Explanation:

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4) 10.00 mL of sulfuric acid is neutralized in a titration using 18.54 mL of 0.100 M NaOH.
sdas [7]

Answer:

a) H_2SO_4+2NaOH\rightarrow Na_2SO_4+2H_2O

b) M_{H_2SO_4}=0.0927M

Explanation:

Hello!

In this case, for this acid-base reaction which also known as a neutralization because sulfuric acid is neutralized with sodium hydroxide, we can write the undergoing chemical reaction as shown below:

H_2SO_4+NaOH\rightarrow Na_2SO_4+H_2O

However, it needs to be balanced as two sodium atoms are yielded:

H_2SO_4+2NaOH\rightarrow Na_2SO_4+2H_2O

Next, since there is a 1:2 mole ratio between the acid and the base, at the equivalence point, at which the moles of acid and base are consumed, we write:

2n_{H_2SO_4}=n_{NaOH}

Which can also be written in terms of the given volumes and concentration of the base:

2M_{H_2SO_4}V_{H_2SO_4}=M_{NaOH}V_{NaOH}

In such a way, we solve for the concentration of sulfuric acid as shown below:

M_{H_2SO_4}=\frac{M_{NaOH}V_{NaOH}}{2V_{H_2SO_4}} =\frac{18.54mL*0.100M}{2*10.00mL}\\\\ M_{H_2SO_4}=0.0927M

Best regards!

5 0
3 years ago
Does the universe have air in it between the galxies in it
fenix001 [56]

Answer:

No it does not space does not have oxygen and air is caused by oxygen

hey but this was a really interesting question to ask tho

Explanation:

4 0
3 years ago
When ironing clothes, the primary method of heat transfer is A) conduction. B) convection. C) insulation. D) radiation.
GaryK [48]
I think the answer is radiation I am not hundred percent sure though
4 0
3 years ago
_Cuo +H, → _Cu + _H,0
Elena-2011 [213]
<h3>Answer:</h3>

CuO(s) + H₂(g) →  Cu(s) + H₂O(l)

<h3>Explanation:</h3>
  • Assuming the reaction is the reduction of CuO by H₂
  • Then the balanced equation for the reaction is;

CuO(s) + H₂(g) →  Cu(s) + H₂O(l)

  • The equation shows the reducing property of hydrogen gas, such that hydrogen reduces metal oxides such as copper(ii)oxide to the respective metals.
  • The law of conservation requires chemical equations to be balanced so as the mass of reactants will be equal to that of products.
  • In this case; there is 1 copper atom, 1 oxygen atom and 2 hydrogen atoms on both side of the equation and thus the equation is balanced.

3 0
3 years ago
Mention three scientist that defined acid
kirill [66]

Answer:

1. Svante Arrhenius

2. Johannes Nicolaus Brønsted and Thomas Martin Lowry

3. Gilbert N. Lewis

Explanation:

The scientist mentioned above researched and made their tested hypothesis available for further research to be built on them and they do these researches to help human understanding of the field and therefore improve knowledge.

Through their different definitions of acid which includes the ability of hydrogen ion (H+) to be produced when a substance is separated from water, the ability of acid to donate a proton (H +), It can be concluded that acids contain hydrogen and they have the ability to donate that  (H +) to other substance.

6 0
3 years ago
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