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Andreyy89
4 years ago
13

What volume of 0.496 M HCl is required to neutralize 20.0 mL of 0.809 M sodium hydroxide?

Chemistry
1 answer:
Olegator [25]4 years ago
3 0

Answer:

See attached image.

Explanation:

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At elevated temperature, carbon tetrachloride decomposes to its elements: CCl4(g) C(s) 2Cl2(g). At 700 K, if the initial pressur
PIT_PIT [208]

Answer:

K=0.0131M

Explanation:

Hello,

In this case, the undergoing chemical reaction turns out:

CCl_4(g) \rightleftharpoons C(s)+ 2Cl_2(g)

In such a way, by means of the mass of law action for such reaction, which is given below:

Kp=\frac{p_{Cl_2}^2}{p_{CCl_4}}

And in terms of the change x due to reaction extent:

p_{CCl_4}=p_{CCl_4}^0-x\\p_{Cl_2}=2x\\p_T=p_{CCl_4}+p_{Cl_2}=1.00-x+2x\\p_T=1.00+x

x results:

x=1.35 atm -1.00atm=0.35atm

In such a way, Kp:

Kp=\frac{(2x)^2}{1.00-x} =\frac{(2*0.35atm)^2}{1.00atm-0.35atm}=0.754atm

Nonetheless, K is asked instead of Kp, thus:

K=\frac{Kp}{(RT)^{\Delta \nu _{gas}}}

Whereas:

\Delta \nu _{gas}=2-1=1

Which is the change in the moles of gaseous species chlorine and carbon tetrachloride. Hence, we finally obtain:

K=\frac{0.754atm}{(0.082\frac{atm*L}{mol*K}*700K)^{1}}\\\\K=0.0131mol/L=0.0131M

Best regards.

8 0
3 years ago
Name the following compound:<br><br> CH3 – CH2 – CH2 – CH2 – CH2 – CH2 – CH2 – CH3
Korvikt [17]
The compound is Octane since it has 8 carbons on the parent chain and has only single carbon to carbon bonds.
7 0
3 years ago
True or false: Most of the mass of an atom is found in the electron layers.
Nataly_w [17]
I wanna say false, but I’m sorry if I’m wrong :(
3 0
3 years ago
1. How many calcium atoms are in 8CaOH?
Vedmedyk [2.9K]

Answer:

8

Explanation:

the number before the abbrviation for calcium (Ca) shows how many calcium there is.

6 0
3 years ago
Read 2 more answers
Chemical properties of epoxide​
Bas_tet [7]

Answer:

Epoxides, also called oxiranes, have a three-membered ring structure with one oxygen and two carbon atoms.

Epoxides can be formed from alkenes by reaction with peroxy acids (MCPBA for example).

Epoxides can be formed from halohydrin molecules by reaction with a base, which causes an intramolecular Williamson ether synthesis.

Explanation:

Epoxide, cyclic ether with a three-membered ring. The basic structure of an epoxide contains an oxygen atom attached to two adjacent carbon atoms of a hydrocarbon. The strain of the three-membered ring makes an epoxide much more reactive than a typical acyclic ether.

5 0
3 years ago
Read 2 more answers
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