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
laila [671]
3 years ago
15

How many moles of glucose are in 19.1g of glucose?​

Chemistry
1 answer:
Crank3 years ago
3 0

Answer:

0.106 mol (3s.f.)

Explanation:

To find the number of moles, divide the mass of glucose (in grams) by its Mr. Glucose has a chemical formula of C6H12O6. To find the Mr, add all the Ar of all the atoms in C6H12O6.

Ar of C= 12, Ar of H= 1, Mr of O= 16

These Ar values can be found on the periodic table.

Mr of glucose= 6(12)+ 12(1) + 6(16)= 180

Moles of glucose

= mass ÷ mr

= 19.1 ÷ 180

= 0.106 mol (3 s.f.)

You might be interested in
Could use some help on this one
cluponka [151]
Sorry for the sketchy drawing.

b. this is an alpha 1-6 glycosidic linkage

3 0
3 years ago
Yo mismo no hablo español, así que espero que esto sea realmente legible--
Deffense [45]

Answer:

what

Explanation:

4 0
4 years ago
Read 2 more answers
What is vaccine (question answer)<br><br><br><br>​
Ket [755]
Above answer is correct
6 0
3 years ago
What change in volume results if 60 mL of a gas is cooled from 33 C to 5 C?
Eva8 [605]

Answer:

Change in volume on changing temperature from 33^{\circ}C to 5^{\circ}C is 5.49 mL

Explanation:

Initial volume of gas = V = 60 mL

Assuming final volume of gas to be V' mL

Initial temperature = T = 33^{\circ}C = 306 K

Final temperature = T' = 5^{\circ}C = 278 K

The relationship between volume and temperature of gas at constant pressure is shown below

\displaystyle \frac{V}{V'}=\displaystyle  \frac{T}{T'} \\\displaystyle \frac{60\textrm{ mL}}{V'} = \displaystyle \frac{306\textrm{ K}}{T} \\V' = 54.51 \textrm{ mL} \\\textrm{Change in volume} = \left ( V-V' \right ) \\\textrm{Change in volume} = \left ( 60-54.51 \right )\textrm{ mL} \\\textrm{Change in volume} = 5.49 \textrm{ mL}

Change in volume on changing temperature = 5.49 mL

6 0
3 years ago
The curiosity is important in the progress of science because it
nordsb [41]
It it important because it makes people wonder how things work and are made which makes it so they want to move forward with experiments <span />
3 0
4 years ago
Read 2 more answers
Other questions:
  • Consider the reaction corresponding to a voltaic cell and its standard cell potential.
    7·1 answer
  • One tank of gasoline has an octane rating of 140 and another tank of gasoline has an octane rating of 80. to obtain a mixture of
    10·1 answer
  • Which element, if combined with chlorine, will have the greatest attraction for the chlorine electrons?
    13·2 answers
  • Lewis is running in a race. His muscles need oxygen. Which best describes how multiple systems interact to bring him into homeos
    13·2 answers
  • Liquids and solids are left out of the equilibrium constant expression because their concentrations remain constant during react
    10·1 answer
  • Electron transition can be likened to moving up and down a ladder. Which of the following statements best describes how an elect
    8·1 answer
  • Which of the following experimental observations proved that the plum pudding model was flawed? (1 point)
    10·1 answer
  • How did astronomers use technology to identify characteristics of the Crab nebula? technology that detects ultraviolet light fou
    9·2 answers
  • When a surface is experiencing friction with another surface, how are the particles
    11·1 answer
  • Can someone pls help with the first two fill in the blanks
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!