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
sdas [7]
4 years ago
8

What determines how fast a substance will dissolve

Chemistry
2 answers:
Blababa [14]4 years ago
8 0

Answer:

(1) the surface area of the solute,

(2) the temperature of the solvent,

(3) the amount of agitation that occurs when the solute and the solvent are mixed.

Explanation:

artcher [175]4 years ago
4 0
The temperature of the solvent is another factor that affects how fast a solute dissolves. Generally, a solute dissolves faster in a warmer solvent than it does in a cooler solvent because particles have more energy of movement.
You might be interested in
Neon is compressed from 100 kPa and 16°C to 500 kPa in an isothermal compressor. Determine the change in the specific volume and
Viktor [21]

Answer:

\Delta v=-0.952m^3/kg

\Delta h=0

Explanation:

In this case, since neon could be considered as an ideal gas, the specific volumes at the first and second state are respectively:

v_1=\frac{Rg*T_1}{p_1}=\frac{0.4119kJ/kg*K*289.15}{100kPa} =1.19m^3/kg\\

v_2=\frac{Rg*T_2}{p_2}=\frac{0.4119kJ/kg*K*289.15}{500kPa} =0.238m^3/kg\\

Thus, the change in the specific volume turns out:

\Delta v=v_2-v_1=0.238m^3/kg-1.19m^3/kg\\\Delta v=-0.952m^3/kg

Which value has sense for the compression.

In addition, the specific enthalpy change just depend on the temperature as it is an ideal gas, therefore, since the process es isothermic:

\Delta h=Cp\Delta T=0

Best regards.

3 0
4 years ago
0.475 g H, 7.557 gS, 15.107 g O. Express your answer as a chemical formula.
max2010maxim [7]

Answer:

H₂SO₄

Explanation:

We have a compound formed by 0.475 g H, 7.557 g S, 15.107 g O. In order to determine the empirical formula, we have to follow a series of steps.

Step 1: Calculate the total mass of the compound

Total mass = mass H + mass S + mass O = 0.475 g + 7.557 g + 15.107 g

Total mass = 23.139 g

Step 2: Determine the percent composition.

H: (0.475g/23.139g) × 100% = 2.05%

S: (7.557g/23.139g) × 100% = 32.66%

O: (15.107g/23.139g) × 100% = 65.29%

Step 3: Divide each percentage by the atomic mass of the element

H: 2.05/1.01 = 2.03

S: 32.66/32.07 = 1.018

O: 65.29/16.00 = 4.081

Step 4: Divide all the numbers by the smallest one

H: 2.03/1.018 ≈ 2

S: 1.018/1.018 = 1

O: 4.081/1.018 ≈ 4

The empirical formula of the compound is H₂SO₄.

7 0
3 years ago
Elements tend to decrease in metallic properties <br><br><br> pls answer fast pls pls pls
Natali [406]

Answer:

yes

Explanation:

the metallic properties of elements tends to decrease across a period and increase down a group.

6 0
3 years ago
Read 2 more answers
If the smallest markings on a ruler are one tenth (1/10) of a centimeter, which of the following measurements could be recorded
makkiz [27]
I think it should be A 
4 0
4 years ago
Read 2 more answers
What unit does a sling psychrometer measure in
Sliva [168]
A sling psychrometer measures humidity
4 0
3 years ago
Other questions:
  • A carpet sells for 27.99 a square yard. What is the price of the carpet square per square meter ?
    11·1 answer
  • For each reaction, write the chemical formulae of the oxidized reactants in the space provided. Write the chemical formulae of t
    10·1 answer
  • The element hydrogen has one valence electron. which of the following elements also has only one valence electron?
    8·1 answer
  • An increase in the atomic number________the atomic radius moving from left to right across a period.
    9·1 answer
  • Write the Arrhenius Base reaction for the following: <br> Sr(OH)2
    14·1 answer
  • 3. Which equation shows why nuclear fission can produce a large amount of energy from very little mass?
    15·1 answer
  • The closest star, Proxima Centauri, is 40,208,000,000,000,000 m away from us. How old is the light that we see from the star?
    5·1 answer
  • MOLES AND MOLAR MASS
    9·1 answer
  • Write the chemical equation for...
    8·1 answer
  • Please help i dont have much time cause i have to give it in soon :,)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!