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scZoUnD [109]
3 years ago
9

How does the structure of water explain the physical and chemical properties of water?

Chemistry
1 answer:
TiliK225 [7]3 years ago
8 0
The chemical composition of water is H2O – two hydrogen atoms and one oxygen atom. Water has special properties because of the way these atoms bond together to form a water molecule, and the way the molecules interact with each other. ... Water's polarity allows it to dissolve other polar substances very easily.
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against at -20 degree centigrade occupied the volume of one 40 ml calculate the temperature at which the volume of cash pickup 6
worty [1.4K]

The final temperature :T₂=411.125 K = 138.125 °C

<h3>Further explanation</h3>

Given

T₁=-20 °C+273 = 253 K

V₁=40 ml

V₂=65 ml

Required

Final temperature

Solution

Charles's Law  

When the gas pressure is kept constant, the gas volume is proportional to the temperature  

\tt \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}

Input the value :

T₂=(V₂.T₁)/V₁

T₂=(65.253)/40

T₂=411.125 K = 138.125 °C

4 0
3 years ago
The reaction for the formation of phosgene from carbon monoxide and chlorineCO + Cl2 --&gt; COCl2 is first order in CO and secon
Ilya [14]

Answer:

r = k . [CO] .[Cl_{2}]

Explanation:

Let´s consider the following reaction:

CO + Cl₂ ⇒ COCl₂

The general rate law is:

r = k . [CO]^{m}. [Cl_{2}]^{n}

where,

r is the rate of the reaction

k is the rate constant

[CO] and [Cl₂] are the molar concentrations of each reactant

m and n are the reaction orders for each reactant

Since the reaction is first order in CO, m = 1. The overall order is the sum of all the individual orders. In this case, the overall order m + n = 2. Then,

m + n = 2

n = 2 - m = 2 - 1 = 1

The reaction is first order in Cl₂.

The rate law is:

r = k . [CO]. [Cl_{2}]

6 0
4 years ago
Can anyone help with this? please
Sloan [31]

Answer:

Volume of solution = 80.5 mL

Explanation:

Given data:

Molarity  of solution = 4.50 mol/L

Mass of ethanol = 16.7 g

Volume of solution = ?

Solution:

Volume will be calculated from molarity formula.

Molarity  = number of moles / volume in L

Number of moles:

Number of moles = mass/molar mass

Number of moles = 16.7 g/ 46.07 g/mol

Number of moles = 0.3625 mol

Volume of solution:

Molarity  = number of moles / volume in L

4.50 mol/L = 0.3625 mol / volume in L

Volume in L =  0.3625 mol /4.50 mol/L

Volume in L = 0.0805 L

Volume in mL:

0.0805 L ×1000 mL/1 L

80.5 mL

3 0
3 years ago
What is the [OH-] of a substance that has a pH of 11?
Deffense [45]

Answer:

0.001 M OH-

Explanation:

[OH-] = 10^-pOH, so

pOH + pH = 14 and 14 - pH = pOH

14 - 11 = 3

[OH⁻] = 10⁻³ ; [OH-] = 0.001 M OH-

6 0
3 years ago
With regards to Lewis-electron diagrams, which of the following compounds has resonance forms?
andre [41]

Explanation:

The resonance compounds are compounds that have the same position of the atoms (same quantity and elements) but the position of the electrons arround them is different in each resonance compound.

In reality, the compound switches between all the resonance structures it has.

One example of resonance Lewis structures is the Ozone's as can be seen in the figure.

3 0
3 years ago
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