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3 years ago

8

Which law states that at constant temperature the pressure of a given amount of gas is inversely proportional to the volume of t

he gas?

1 answer:

Phantasy [73]3 years ago

8 0

That law is known as Boyle's Law, "The volume of a given mass of a gas is inversely related to pressure when the temperature is constant"

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WILL GIVE BRAINLIEST!<br> Calculate the bond for CO2

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Answer:

Bonding Order = number of bonding electrons – number of antibonding electrons/2.

So for CO2, there is a total of 16 electrons, 8 of which are antibonding electrons.

So 16 – 8 = 8; divided by 2 = 4. So, 4 is the bonding order of CO2. The molecular structure of CO2 looks like this:

..~-~~..

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3 years ago

What is the complete balanced equation for the reaction that occurs when lithium carbonate (Li2CO3) is heated?

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When heating lithium carbonate (Li2CO3), it will dissociate to Li2O and Co2. So the balanced chemical equation of this reaction is Li2CO3 = Li2O + CO2.

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0. A liquid solution of LiCl in water at 25°C contains 1 mol of LiCl and 7 mol of water. If 1 mol of LiCl⋅3H2O(s) is dissolved i

kupik [55]

Answer:

19.488 kJ

Explanation:

The overall reaction mechanism shows the reaction between LiCl and H₂O

$LiCl.3H_2O ------> Li +\frac{1}{2} Cl_2+3H_2+\frac{3}{2} O_2$ -------- (1)

$2Li+Cl_2+10H_2O ----->LiCl.10H_2O$ -------- (2)

$3H_2+\frac{3}{2}O_2 -----> 3H_2O$ --------- (3)

$LiCl.7H_2O ------> Li + \frac{1}{2} Cl_2+7H_20$ ---------- (4)

The overall reaction =

$LiCl.7H_2O +LiCl.3H_2O ------> 2LiCl.10H_2O$

The heat effects of the above reactions from 1-4 respectively are in the order ; 11311.34 kJ, -857.49 kJ, -873.61 kJ and 439.288kJ respectively

The overall enthalpy change is:

$\delta H = \delta H _{LiCl.3H_2O}+\delta H_{3H_2O} + \delta H_{2(LiCl.5H_2O)} + \delta H _{liCl.7H_2O}$

$\delta H =Q$ at constant pressure;

Thus; Q = 1311.3 (kJ) 857.49 (kJ) -873.61 (kJ) + 439.288 (kJ)

Q = 19.488 kJ

Thus, the heat effect = 19.488 kJ after the addition of 1 mol of LiCl⋅3H2O(s)

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3 years ago