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
Dimas [21]
3 years ago
13

3.95 g of sugar (C6H12O6) is dissolved in water to make 158 mL of solution. Find the molarity.

Chemistry
1 answer:
12345 [234]3 years ago
8 0

Answer:

[C₆H₁₂O₆] = 0.139 M

Explanation:

Molarity si defined as a sort of concentration. It indicates the moles of solute that are contained in 1 L of solution.

We can also say, that molarity are the mmoles of solute contained in 1 mL of solution.

For this case, the solute is sugar (glucose). Let's determine M (mmol/mL)

(3.95 g . 1mol / 180g) . (1000 mmol / 1mol) / 158 mL

We determine moles, we convert them to mmoles, we divide by mL

M = 0.139 M

Moles = 3.95 g . 1mol / 180g → 0.0219 mol

We convert mL to L → 158 mL . 1L/1000mL = 0.158L

M = 0.0219 mol / 0.158L = 0.139 M

You might be interested in
Thermal energy is transferred from?
aliina [53]

Answer:

chemical and electrical ( and sometimes nucelar)

Explanation:

4 0
3 years ago
Read 2 more answers
The graph shows the speed of a car
Sav [38]

Answer:

Letter B.

Explanation:

Changing its direction and climbing a steep incline can't be proven only by the graph info. You can see that it's speed isn't constant in the graph.

We have letter B left.

6 0
3 years ago
Which of the following tends to form anions when bonding with other elements?
yarga [219]

Answer: it’s D

Explanation:

3 0
3 years ago
Read 2 more answers
True/False: When a substance is heated, the change in energy causes the bonds between particles to become stronger.​
Rzqust [24]

Answer:

false

Explanation:

the energy causes the bonds to become looser

5 0
3 years ago
Read 2 more answers
Most of the water a vascular plant takes in ______. Goes back into the soil Evaporates in the process of transpiration Is used t
MatroZZZ [7]

Answer:

EVAPORATES IN THE PROCESS OF TRANSPIRATION

Explanation:

Plants takes in water from the soul via it's root system. Small amount of the water are used for growth and metabolism of the plants. Some are used in the process of photosynthesis. The bulk of the remaining are lost through transpiration. This takes place in the stomata of the plants. The stomata are numerous on the leaf surfaces and are guarded by cells which allow for opening and closing of the stomata. Transpiration helps the plants to remove CO2 produced by photosynthesis, cools the plant and also changes osmotic pressure of the plant which allows for the flow of nutrients and water from the root to the leaves, flowers, fruits.

7 0
3 years ago
Other questions:
  • Which of the following is not a possible source of energy for chemosynthetic organisms?
    15·1 answer
  • Does a melted iceberg increase the salinity of the ocean?
    8·2 answers
  • 0.556 g of a solid white acid are dissolved in water and completely neutralized by the addition of 52.38 mL of 0.396 M NaOH. Cal
    7·1 answer
  • A bottle of 2 moles of an ideal diatomic gas experiences a temperature increase of 50.0K at constant volume. (a) Find the increa
    15·1 answer
  • What does homogeneous and herogeneous mean?
    12·1 answer
  • Give the excepted charge of the actions of the following elements:
    10·1 answer
  • Iron in the 2 oxidation state reacts with potassium dichromate to produce Fe3 and Cr3 according to the equation: 6 Fe2 (aq) Cr2O
    11·1 answer
  • Earth is currently 150 million km away from the Sun. If Earth was 200 million km away from the Sun, why would it no longer be ab
    9·1 answer
  • In a molecule of calcium sulfide, calcium has two valence electron bonds, and a sulfur atom has six valence electrons. How many
    5·1 answer
  • - How many moles of S2 are needed to produce 1.50 moles of SO2 gas? S2 + 20, ----> 2802​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!