answer.
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
uranmaximum [27]
1 year ago
11

Suppose you added a spoonful of sugar to hot water and another to ice-cold water. which type of water will cause the sugar to di

ssolve more quickly?
Chemistry
2 answers:
denpristay [2]1 year ago
4 0
The hot water will make sugar to dissolve faster, because in the hot water molecules move faster and diffusion goes faster.
shepuryov [24]1 year ago
4 0

Solubility is defined as ability of a solute to dissolve in the given amount of solvent. There are so many factor which affect the solubility of solute in a particular solvent, temperature is one of them.

The solubility of most of solids in liquid water increases with increase in temperature due to increase in kinetic energy of the molecules of solute and solvent.  At high temperature, fast moving solvent molecules effectively attract with the solute molecules, breaking them apart, this increases the solubility of solute.

If a spoonful of sugar is added to hot and cold water, sugar in hot water dissolves more quickly due to high temperature as compared to cold water.

Therefore, hot water will cause the sugar to dissolve more quickly.


You might be interested in
Why did hurricane Katrina slow down at data point 7 ?
adell [148]

Answer:

Because the hot air from the equator is balance with the cold air from the polar region, meaning the temperature is the right degree, therefore it causes the slowing down of that hurricane.

Explanation:

From your science class you do study the convectional current right? that's what happen on the outside real life

3 0
2 years ago
Calculate the height of a column of liquid benzene (d=0.879g/cm3), in meters, required to exert a pressure of 0.790 atm .
Simora [160]

Here we have to get the height of the column in meter, filled with liquid benzene which exerting pressure of 0.790 atm.

The height of the column will be 0.928 m.

We know the relation between pressure and height of a liquid placed in a column is: pressure (P) = Height (h) × density of the liquid (ρ) × gravitational constant (g).

Here the pressure (P) is 0.790 atm,

or [0.790 × (1.013 × 10⁶)] dyne/cm². [As 1 atm is equivalent to 1.013 × 10⁶ dyne/cm²]

Or, 8.002ₓ10⁵ dyne/cm².

density of benzene is given 0.879 g/cm³.

And gravitational constant (g) is 980 cm/sec².

On plugging the values we get:

8.002×10⁵ = h × 0.879 × 980

Or, h = 928.931 cm

Or, h = 9.28 m (As 1 m = 100 cm)

Thus the height will be 9.28 m.

7 0
2 years ago
Read 2 more answers
If the initial concentration of NOBr is 0.0440 M, the concentration of NOBr after 9.0 seconds is ________. If the initial concen
Nikolay [14]

This is an incomplete question, here is a complete question.

If the initial concentration of NOBr is 0.0440 M, the concentration of NOBr after 9.0 seconds is ________.

The reaction

2NOBr(g)\rightarrow 2NO(g)+Br_2(g)

It is a second-order reaction with a rate constant of 0.80 M⁻¹s⁻¹ at 11 °C.

Answer : The concentration of after 9.0 seconds is, 0.00734 M

Explanation :

The integrated rate law equation for second order reaction follows:

k=\frac{1}{t}\left (\frac{1}{[A]}-\frac{1}{[A]_o}\right)

where,

k = rate constant = 0.80 M⁻¹s⁻¹

t = time taken  = 142 second

[A] = concentration of substance after time 't' = ?

[A]_o = Initial concentration = 0.0440 M

Putting values in above equation, we get:

0.80M^{-1}s^{-1}=\frac{1}{142s}\left (\frac{1}{[A]}-\frac{1}{(0.0440M)}\right)

[A]=0.00734M

Hence, the concentration of after 9.0 seconds is, 0.00734 M

5 0
1 year ago
What volume in<br><br> L<br><br> of a 0.724 M Nal solution contains 0.405 mol of Nal ?
Amanda [17]

Answer:

0.5594\ \text{L}

Explanation:

Mol of NaI = 0.405 mol

Molarity of solution = 0.724 M

Molarity is given by

M=\dfrac{\text{mol}}{\text{Volume of solution in }NaI}\\\Rightarrow \text{Volume of solution in }NaI=\dfrac{0.405}{0.724}\\\Rightarrow \text{Volume of solution in }NaI=0.5594\ \text{L}

The required volume is 0.5594\ \text{L}.

5 0
2 years ago
When 2.36g of a nonvolatile solute is dissolved in 100g of solvent, the largest change in freezing point will be achieved when t
nignag [31]

Answer:

Option c → Tert-butanol

Explanation:

To solve this, you have to apply the concept of colligative property. In this case, freezing point depression.

The formula is:

ΔT = Kf . m . i

When we add particles of a certain solute, temperature of freezing of a solution will be lower thant the pure solvent.

i = Van't Hoff factor (ions particles that are dissolved in the solution)

At this case, the solute is nonvolatile, so i values 1.

ΔT = Difference between  fussion T° of pure solvent - fussion T° of solution.

T° fussion paradichlorobenzene = 56 °C

T° fussion water = 0°

T° fussion tert-butanol = 25°

Water has the lowest fussion temperature and the paradichlorobenzene has the highest Kf. But the the terbutanol, has the highest Kf so this solvent will have the largest change in freezing point, when all the molalities are the same.

3 0
2 years ago
Other questions:
  • How many grams of oxygen are in 56 g of c2h2o2?
    5·2 answers
  • An aqueous solution of a soluble compound (a nonelectrolyte) is prepared by dissolving 33.2 g of the compound in sufficient wate
    11·2 answers
  • How many protons are there in 20.02 mol of neon (Ne)?
    9·1 answer
  • Classify these properties of the metal lithium as physical or chemical. Physical Chemical light enough to float on water silvery
    7·2 answers
  • 1. Calculate the molar enthalpy of solidification (ΔHsolidification) when 10.00kJ of energy are lost as 30.00g of water are froz
    14·1 answer
  • . The Henry's law constant for helium gas in water at 30 ∘C is 3.7×10−4M/atm; the constant for N2 at 30 ∘C is 6.0×10−4M/atm. a.
    15·1 answer
  • If 5.0 g of each reactant were used for the the following process, the limiting reactant would be: 2KMnO4 + 5Hg2Cl2 + 16HCl -&gt
    14·1 answer
  • What is the mean rate of reaction 3.4g of copper sulphate was produced in 3 days?
    12·1 answer
  • Why is it necessary to assign organic chemistry exclusively to the study of carbon compounds?​
    10·1 answer
  • A rigid, 28-L steam cooker is arranged with a pressure relief valve set to release vapor and maintain the pressure once the pres
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!