1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
skelet666 [1.2K]
3 years ago
10

David is making lemonade he asked you could you some lemon juice and water the sugar starts to dissolve what can we do to speed

up the dissolving process
Chemistry
1 answer:
suter [353]3 years ago
7 0

We could (a) stir faster and (b) warm the mixture.

<em>Stirring faster</em> moves freshly-dissolved sugar away from the solid and allows new water molecules to contact with the surface,

<em>Warming the mixture</em> gives the water molecules more kinetic energy, so their collisions with the surface of the sugar will be more effective in removing the sugar molecules.

You might be interested in
Exposing a 250 mL sample of water at 20.∘C to an atmosphere containing a gaseous solute at 27.59 kPa resulted in the dissolution
ElenaW [278]

Answer : The solubility of this gaseous solute will be, 5.18\times 10^{-5}g/mL

Explanation :

First we have to calculate the concentration of solute.

\text{Concentration of solute}=\frac{Mass}{Volume}=\frac{4.51\times 10^{-3}g}{250mL}=1.80\times 10^{-5}g/mL

Now we have to calculate the Henry's law constant.

Using Henry's law :

C=k_H\times p

where,

C = concentration of solute = 1.80\times 10^{-5}g/mL

p = partial pressure = 27.59 kPa

k_H = Henry's law constant = ?

Now put all the given values in the above formula, we get:

1.80\times 10^{-5}g/mL=k_H\times (27.59kPa)

K_H=6.52\times 10^{-7}g/mL.kPa

Now we have to calculate the solubility of this gaseous solute when its pressure is 79.39 kPa.

C_{(79.39kPa)}=k_H\times p

C_{(79.39kPa)}=(6.52\times 10^{-7}g/mL.kPa)\times (79.39kPa)

C_{(79.39kPa)}=5.18\times 10^{-5}g/mL

Therefore, the solubility of this gaseous solute will be, 5.18\times 10^{-5}g/mL

7 0
3 years ago
Beaches along the eastern and western coasts of North America are composed chiefly of quartz grains.
lidiya [134]
I think the answer is true. These beaches are composed mostly with sandstone which is mainly sand-sized minerals. These grains is made up of quartz and feldspar since these are the most common mineral found in Earth.
3 0
3 years ago
Colligative properties depend most on which of the following?
erma4kov [3.2K]

Answer: -

Thus Colligative properties depend most on concentration of solute particles.

Explanation: -

Colligative properties are the properties of a solution that depends only on the number of particles of the solute present in the solution and not on the identity of the solute.

The number of solute particles present per unit volume in a solution is referred to as the concentration of solute particles.

Thus Colligative properties depend most on concentration of solute particles.

5 0
3 years ago
Why does the octet rule not always refer to a stable arrangement of eight valence electrons
bearhunter [10]

Answer:

Explanation:

The octet rule does not always refer to a stable arrangement of eight valence electrons because there are some element that do not have eight valence electrons yet they are stable. for example;

i) Helium, It has two valence electrons and it is a stable gas.

ii) Boron triflouride (BF3); it has  six valence electrons (deficit valence electron) yet it is also stable.

iii) Phosphorus pentachloride (PCl5); it has more than eight valence electron and it is also stable.

For these few reasons it is not always advisable to say octet arrangement refer to stable eight valence electrons.  

4 0
3 years ago
Đốt cháy hoàn toàn một amin đơn chức thu được CO2 và H2O theo tỉ lệ nCO2 : nH2O = 6 : 7. Vậy CT amin đó là
Sav [38]
Câu trả lời là Anlyamin

7 0
3 years ago
Other questions:
  • Has its own size and shape
    6·2 answers
  • Which of the following correctly describes the result of a voltage difference?
    13·1 answer
  • Mercury melts at 234.3 k. Convert this this melting point to degrees celcius
    5·2 answers
  • During boiling, bubbles appear in the liquid water. In the boxes below represent the
    9·1 answer
  • Express the density 5.6 g/cm3
    10·1 answer
  • What is an example of a neutralization reaction?
    15·1 answer
  • When silver coins are found in ancient shipwrecks, they are coated with a black crust. What question could you ask to help you d
    7·1 answer
  • The sun is located in the center of our solar system. Where is the sun located in our disc-shaped
    11·1 answer
  • How many moles are present in 2.95 x1024 molecules of water (H20)
    12·1 answer
  • Which describes the oxidizing agent in a chemical reaction?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!