CHEMISTRY HIGH SCHOOL

The solubility of KClO3(s) in water increases as the(1) temperature of the solution increases
(2) temperature of the solution decreases
(3) pressure on the solution increases
(4) pressure on the solution decreases

Answers

Answer 1
Answer: Answer: option (1) solubility of the solution increases.


Justification:


The solubility of substances in a given solvent is temperature dependent.


The most common behavior of the solubility of salts in water is that the solubiilty increases as the temperature increase.


To predict with certainty the solubility at different temperatures you need the product solubility constants (Kps), which is a constant of equlibrium of the dissolution of a ionic compound slightly soluble in water, or a chart (usually experimental chart) showing the solubilities at different temperatures.


KClO₃ is a highly soluble in water, so you do not work with Kps.


You need the solubility chart or just assume that it has the normal behavior of the most common salts. You might know from ordinary experience that you can dissolve more sodium chloride (table salt) in water when the water is hot. That is the same with KClO₃.


The solubility chart of KlO₃ is almost a straight line (slightly curved upward), with positive slope (ascending from left to right) meaning that the higher the temperature the more the amount of salt that can be dissolved.
Answer 2
Answer:

Answer: Option (1) is the correct answer.

Explanation:

Solubility of a solute gets affected by change in temperature. That is, when we increase the temperature then more and more solute particles will dissolve into the solvent or solution.

Therefore, solubility of KClO3(s) in water increases as the temperature of the solution increases because on increasing the temperature it will completely dissociate into the solution.

Related Questions

Will bromine water and magnesium react
If i add 25 mL of water to 125 mL of a 0.15 M NaOH solution, what will the molarity of the diluted solution be ?
Regarding the formula Al2O3 which of the following is accurate?A. The coefficient 3 indicates that there are a total of three atoms of oxygen present in the substance. B. The subscript 2 indicates that two atoms of oxygen are present in the substance. C. The chemical symbol Al indicates that oxygen is present in the substance. D. The subscript 2 indicates that two atoms of aluminum are present in the substance
Explain why phosphoric acid is needed for the battery to operate
Increasing the _________________ of a reactant exposes more of it to the reaction taking place. a. catalyst b. surface area c. concentration d. heat

N2 + 3H2 Right arrow. 2NH3 What is the percent yield of NH3 if the reaction of 26.3 g of H2 produces 79.0 g of NH3? Use Percent yield equals StartFraction actual yield over theoretical yield EndFraction times 100..

Answers

Answer:

53.4%

Explanation:

N₂ + 3H₂ → 2NH₃

Given that:

26.3 g of H₂ react with N₂ to produce 79.0 g of NH₃

Then:

The number of moles of H₂ = 26.3g of H₂ * (1 mol of H₂/ 2.02g of H₂)

= 13.05 mol of H₂

The number of moles of NH₃ = 13.05 mol of H₂ * ( 2mol of NH₃/ 3 mol of H₂)

= 8.697 mol of NH₃

The mass of NH₃ = 8.697 mol of NH₃ *( 17.04g of NH₃/ 1 mol of NH₃) = 148.1 g of NH₃

The percent yield = actual yield/ theoretical yield * 100%

The percent yield = ( 79.0 g/ 148.1 g )* 100%

The percent yield ≅ 53.4 %

Answer:

53.4

Explanation:

The element mercury was first discovered on the Sun.
a. True
b. False

Answers

This statement is FALSE. Mercury was not first discovered in the sun. In fact, mercury or quicksilver was discovered by ancient Indians and Chinese even before 2000 BC. Its ores that are called cinnabar are used in traditional Chinese medicines. However, the effectiveness is not yet justified because of the toxicity of the element. Mercury is also used with thermometers both in clinical and lab uses. Nowadays, the use of it in thermometers is gradually disappearing because of its harmful properties.  

How much heat is released by the combustion of 2 mol of methane?
Use mc019-5.jpg.

Answers

From literature, the heat of combustion of methane is 55.5 MJ/kg methane. to account for the 2 mol of methane given we convert 2 mol to kg which is determined by multiplying 2 mol by molec.weight (16g/mol) divided by 1000 to convert to kg. This is equal to 0.032 kg methane. We multiply this to 55.5 MJ/kg.The total heat released is 1.776 MJ.

Why would you add boiling chips/stones to a solution that is to be refluxed? when should you add them?

Answers

  • Chip stones should be added to a solution that is to be refluxed as they act as nucleation sites for formation of solvent bubbles.
  • This should be added when the temperature of the liquid is still low.

What are Boiling Chips?

These are usually added to a solution as they contain trappedair which

helps in the reflux process.

The high surface area ensures it acts as nucleation sites and the best time

to dd is when the temperature of the solution is still low for best results.

Read more about Boiling chips here brainly.com/question/10584205
Answer: Boiling chips provide surfaces on which bubbles can form as the liquid boils.

Hope this helps!

Is aluminium malleable or rigid?

Answers

Aluminum is malleabe

Which of the following is equal to 4 kilograms? A. 4,000 mg
B. 4,000 g
C. 40 g
D. 4,000 cg

Answers

Of course , B. 4,000 g
Other Questions
Which statement best describes how electrons fill orbitals in the periodic table?
How many grams of hydrogen peroxide (H2O2) must be added to 1,500 mL of water to produce a concentration of 1.33 m (molal solution)? (Recall that the density of water is 1.0 gram/mL.)
How many moles of hydrogen are needed to produce 13.78 mol of ethane?
46 What occurs at one of the electrodes in both an electrolytic cell and a voltaic ccl1?( I) Oxidation occurs as electrons arc gained at the cathode. (2) Oxidation occurs as electrons are lost at the anode.(3) Reduction occurs as electrons are gained at the anode. (4) Reduction occurs as electrons are lost at the cathode.