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
mezya [45]
3 years ago
10

How many moles are in 1.505x10^24 molecules of surcrose

Chemistry
1 answer:
algol [13]3 years ago
5 0

Answer:

2.499 moles of sucrose

Explanation:

Divide by Avogadro's number

You might be interested in
An unknown metal has a mass of 86.8 g. When 5040 J of heat are added to the sample, the sample temperature changes by 64.7 ∘ C .
grandymaker [24]

Answer: The specific heat of the unknown metal is 0.897J/g^0C

Explanation:

The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

Q=m\times c\times \Delta T

Q = Heat absorbed=5040 Joules

m= mass of substance = 86.8 g

c = specific heat capacity = ?

Initial temperature of the water = T_i

Final temperature of the water = T_f

Change in temperature ,\Delta T=T_f-T_i=(64.7)^0C

Putting in the values, we get:

5040=86.8\times c\times 64.7^0C

c=0.897J/g^0C

The specific heat of the unknown metal is 0.897J/g^0C

4 0
3 years ago
I WILL GIVE BRAINLEST ANSWER THOSE THREE QUESTIONS PLZZZZ HELP ME
miskamm [114]
For changing potential energy; When you drop a book, gravitational potential energy is transformed into kinetic energy. Your car transforms the chemical potential energy stored in gasoline into the kinetic energy of the car's motion.

For Kinetic Energy; kinetic energy can be converted into electrical energy by a generator or into thermal energy by the brakes on a car.
3 0
3 years ago
Determine whether each statement describes an electromagnetic wave, a mechanical wave, or both types of wave.
KiRa [710]

The question is incomplete, the complete question is;

Which statement describes a difference between electromagnetic and mechanical waves?

A. Mechanical waves cannot be longitudinal, but electromagnetic waves can.

B. Electromagnetic waves cannot move particles, but mechanical waves can.

C. Electromagnetic waves do not require a medium, but mechanical waves do.

D. Mechanical waves do not transfer energy, but electromagnetic waves do.

Answer:

Electromagnetic waves do not require a medium, but mechanical waves do.

Explanation:

A wave is defined as a disturbance along a medium which transfers energy. Waves may be classified as mechanical waves or electromagnetic waves based on their medium of propagation.

A mechanical wave requires a material medium for propagation. An example of a mechanical wave is sound waves. Sound waves are propagated in air.

Electromagnetic waves do not require a material medium for propagation. They can travel through space. An example of electromagnetic waves is light waves.

8 0
3 years ago
What is the number of neutrons in Hydrogen, O (A= 1, Z= 1)?
Vilka [71]

Answer:

Explanation:

Hydrogen has 1 proton and one nuetron

Oxygen has 8 protons nad 8 neutrons

5 0
2 years ago
What is the theoretical yield of oxygen when 29.2 g of water are decomposed by electrolysis according to the balanced equation:
Zinaida [17]

Taking into account the reaction stoichiometry, the theoretical yield of oxygen when 29.2 g of water are decomposed by electrolysis is 25.956 grams.

<h3>Reaction stoichiometry</h3>

In first place, the balanced reaction is:

2 H₂O → 2 H₂ + O₂

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

  • H₂O: 2 moles
  • H₂: 2 moles
  • O₂: 1 mole

The molar mass of the compounds is:

  • H₂O: 18 g/mole
  • H₂: 2 g/mole
  • O₂: 32 g/mole

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

  • H₂O: 2 moles ×18 g/mole= 36 grams
  • H₂: 2 moles ×2 g/mole= 4 grams
  • O₂: 1 mole ×32 g/mole= 32 grams

<h3>Definition of theorical yield</h3>

The theoretical yield is the amount of product acquired through the complete conversion of all reagents in the final product, that is, it is the maximum amount of product that could be formed from the given amounts of reagents.

<h3>Theorical yield of O₂</h3>

The following rule of three can be applied: if by reaction stoichiometry 36 grams of water form 32 grams of oxygen, 29.2 grams of water form how much mass of oxygen?

mass of oxygen=\frac{29.2 grams of waterx32 grams of oxygen}{36 grams of water}

<u><em>mass of oxygen= 25.956 grams</em></u>

Finally, the theoretical yield of oxygen when 29.2 g of water are decomposed by electrolysis is 25.956 grams.

Learn more about the reaction stoichiometry:

brainly.com/question/24741074

brainly.com/question/24653699

#SPJ1

6 0
1 year ago
Other questions:
  • When a binary compound is the only reactant, what are the products most likely to be?
    9·1 answer
  • A measure of kinetic energy of particle motion within a substance is_____.
    6·2 answers
  • Consider a cloudless day on which the sun shines down across the United States. If 2014 kJ of energy reaches a square meter( m 2
    6·1 answer
  • What do scientist use to measure the mass of a substance
    12·1 answer
  • Why atoms combine in their gaseous form only???​
    10·1 answer
  • Which of the following was a major contribution to chemistry by Antoine Lavoisier
    11·1 answer
  • 1. compare and differentiate weathering erosion.
    5·2 answers
  • Yami pours powdered cocoa mix into milk and stirs it. Then she microwaves the mixture for three minutes. When she takes the cup
    8·2 answers
  • If 41.38 g of sodium combines with
    15·1 answer
  • 3. Calculate the molarity of the HCI solution if 0.074 mol of HCl is dissolved in water to
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!