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
Sindrei [870]
3 years ago
6

Solve whats on the image PLEASE 50 POINTS

Chemistry
2 answers:
Lorico [155]3 years ago
5 0
the answer is 50%!!!!
notsponge [240]3 years ago
4 0

Answer:

The answer is 99.34 percent

You might be interested in
Which is the following describes a solution?
Dvinal [7]
A solution is uniform throughout, so your answer is the first one.
8 0
3 years ago
Read 2 more answers
vaporized at 100°C and 1 atmosphere pressure. Assuming ideal gas 1 g mole of water is behavior calculate the work done and compa
Vesna [10]

Answer:

q = 40.57 kJ; w = -3.10 kJ; strong H-bonds must be broken.

Explanation:

1. Heat absorbed

q = nΔH = 1 mol × (40.57 kJ/1 mol) = 40.57 kJ

2. Change in volume

V(water) = 0.018 L

pV = nRT

1 atm × V = 1 mol × 0.082 06 L·atm·K⁻¹mol⁻¹ × 373.15 K

V = 30.62 L

ΔV = V(steam) - V(water) = 30.62 L - 0.018 L = 30.60 L

3. Work done

w = -pΔV = - 1 atm × 30.60 L = -30.60 L·atm

w = -30.60 L·atm × (101.325 J/1 L·atm) = -3100 J = -3.10 kJ

4. Why the difference?

Every gas does 3.10 kJ of work when it expands at 100 °C and 1 atm.

The difference is in the heat of vaporization. Water molecules are strongly hydrogen bonded to each other, so it takes a large amount of energy to convert water from the liquid phase to the vapour phase.

7 0
4 years ago
HF dissolved in NH3, exerts intermolecular force best described as:
denpristay [2]

Answer:

Hydrogen Bonding

Explanation:

Message me for extra information

parkguy786: snap

8 0
3 years ago
(LO 37,45) A reaction is 75% complete in 45.0 min. How long after its start will the reaction be 50% complete if it is (A) first
seropon [69]

Answer:

A) t = 22.5 min and B) t = 29.94 min

Explanation:

Initial concentration, [A]₀ = 100

Final concentration = 100 -75 = 25

Time = 45 min

A) First order reaction

ln[A] − ln[A]₀ = −kt

Solving for k;

ln[25] − ln[100] = - 45k

-1.386 = -45k

k = 0.0308 min-1

How long after its start will the reaction be 50% complete?

Initial concentration, [A]₀ = 100

Final concentration, [A] = 100 -50 = 50

Time = ?

ln[A] − ln[A]₀ = −kt

Solving for k;

ln[50] − ln[100] = - 0.0308 * t

-0.693 = -0.0308 * t

t = 22.5 min

B) Zero Order

[A] = [A]₀ − kt

Using the values from the initial reaction and solving for k, we have;

25 = 100 - k(45)

-75 = -45k

k = 1.67 M min-1

How long after its start will the reaction be 50% complete?

Initial concentration, [A]₀ = 100

Final concentration, [A] = 100 -50 = 50

Time = ?

[A] = [A]₀ − kt

50 = 100 - (1.67)t

-50 = - 1.67t

t = 29.94 min

3 0
3 years ago
4 What is the maximum number of students among whom 125 oranges, 150 citrus
oksano4ka [1.4K]

Answer:

25

Explanation:

fing the highest common factor

pime factorisation:

125=5×5×5

150=2×3×5×5

225=3×3×5×5

find the common numbers in all prime numbers

》5×5=25

5 0
3 years ago
Other questions:
  • What two things must occur in order for a light Ray to refract when it strikes the boundary of a different medium?
    13·1 answer
  • What is the volume of 12.8 g of a liquid that has a density of 0.789 g/mL?
    10·2 answers
  • The electrical resistance of a circuit is influenced by three primary factors:
    10·1 answer
  • Elliot took a piece of solid ice and left it in the sun. It melted and turned to liquid water. The water then evaporated into a
    10·1 answer
  • Substances that transfer heat better than others are called
    9·1 answer
  • An ionic compound is formed when there is a reaction between the elements
    6·1 answer
  • A scientist claims to have a cooling apparatus kept at -100C by liquid nitrogen. Is this possible? Why or why not?
    6·1 answer
  • What type of bond is formed when both atoms have a strong attraction for an electron? A.hydrogen bond B.ionic bond C.covalent bo
    13·1 answer
  • TRUE OR FALSE 3 QUESTION If the statement is true, write true. If the statement is false, change the capitle word to make the st
    6·1 answer
  • Function of meritematic tissue
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!