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
jarptica [38.1K]
3 years ago
12

A student placed 11.5 g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then

carefully added additional water until the 100. mL mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 25.0 mL sample of this glucose solution was diluted to 0.500 L. How many grams of glucose are in 100. mL of the final solution?
Chemistry
1 answer:
masha68 [24]3 years ago
6 0

Answer:

The mass of glucose in 100 mL of final solution: <u>w₂ =0.5747 g</u>

Explanation:

Given: Mass of glucose: w₁ = 11.5 g, Volume of solution 1: V₁ =100 mL,  Volume of solution 2: V₂ = 0.5 L = 0.5 × 100 = 500 mL, Mass of glucose: w₂ = ? g

Molar mass of glucose; m = 180.16 g/mol

As, Molarity = (given mass × 1000) ÷ (molar mass × volume of solution in mL)

<u>Molarity of glucose solution 1</u>: M₁ = (w₁ × 1000) ÷ (m × V₁) = (11.5 g × 1000) ÷ (180.16 g/mol × 100 mL) = 0.638 M

<u>Dilution of 25.0 mL 0.638 M solution to 500 mL:</u>

According to the Dilution equation: M₁ × V₁ = M₂ × V₂

0.638 M × 25 mL = M₂ × 500 mL

M₂ = 0.638 M × 25 mL ÷ 500 mL

M₂ = 0.0319 M

Molarity of glucose solution 2: M₂ = 0.0319 M = (w₂ × 1000) ÷ (m × V₂)

⇒ <u>mass of glucose: w₂</u> = (M₂ × m × V₂) ÷ (1000)

⇒ w₂ = (0.0319 M × 180.16 g/mol × 100) ÷ (1000) = <u>0.5747 g</u>

<u />

<u>Therefore, the mass of glucose in 100 mL of final solution: w₂ =0.5747 g</u>

You might be interested in
Give the name of the products formed
attashe74 [19]

Answer:

With Br2 - Bromobenzene

With Cl2 - Chlorobenzene

With HNO3- Nitrobenzene

With H2SO4 - Benzenesulphonic acid

With HCOCl - Benzoyl chloride

With 1-chloro-2,2-dimethylpropane - 2,2dimethyl-1-phenyl propane

Explanation:

The common thread joining all these reactions is that they are all electrophillic reactions. They are so called because the attacking agents in each reagent is an electrophile. Electrophiles are species that have electron deficient centers and are known to attack molecules that are high in electron density at regions of high electron density.

The benzene molecule has rich electron density. Any substituents that donates electrons to the ring improves the likelihood that benzene will undergo electrophillic substitution reactions while electron withdrawing substituents decrease the likelihood that benzene will undergo electrophillic substitution reactions.

The names of the compounds formed when benzene undergoes electrophillic reaction with the attacking agents listed in the question are displayed in the answer section.

7 0
2 years ago
What type of soil holds the least amount of water
jeka57 [31]
The clay soil holds the least amount if water.
8 0
2 years ago
Read 2 more answers
What does E=mc^2 mean
Brums [2.3K]

E represents units of energy, m represents units of mass, and c2 is the speed of light squared, or multiplied by itself


So I THINK that A is the right answer but i may be wrong.


I hope this helped :)

8 0
3 years ago
what happens when baking soda is mixed with vinegar a a new substance is formed B the substances are the same c but the baking s
Ray Of Light [21]

Answer:

NaHCO3 sodium bicarbonate is baking soda; added to the acetic acid, it forms sodium acetate (aqueous), CO2 gas & water. Remove the water & solid sodium acetate remains.

Explanation:

5 0
3 years ago
What is atomic mass?
vovikov84 [41]
Atomic mass is the quantity of protons that have in a atom. Which atom have different numbers of protons, being able to be identified by them.
8 0
2 years ago
Other questions:
  • During the hot summer days, there is a lot more water in the air. This is due to which change of state?
    6·1 answer
  • The complete combustion (reaction with oxygen) of liquid octane (C8H18) a component typical of the hydrocarbons in gasoline, pro
    10·1 answer
  • The amount of gas that occupies 36.52 L at 68.0 degrees Celsius and 672 mm Hg is ___ Mol.
    15·1 answer
  • What is one way to speed up a chemical reaction without otherwise affecting the reaction? A. add a catalyst B. decrease surface
    8·2 answers
  • Draw the complete structure of the following tetrapeptides (draw the ionized groups in the protonated form): 1) Met- Glu-Gly-His
    15·1 answer
  • What happens when gasoline is used to power a vehicle?
    5·1 answer
  • What happens when liquid changes to gas?
    15·1 answer
  • A 10.0 g sample of a hydrate was heated until all the water was driven off. The mass of the anhydrous product remaining was 8.00
    7·1 answer
  • Me ayudan xfa, doy corona :)
    7·1 answer
  • Will give brainliest if correct. Which of these bonds should be classified as a polar covalent bond?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!