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
Jlenok [28]
2 years ago
13

Strigol is an important plant hormone that is released by crops such as rice and sugarcane. Unfortunately for these plants, stri

gol also activates the germination of any nearby witchweed seeds, resulting in the destruction of the crops by the parasitic weed. Strigol has nineteen carbon atoms. Determine the HDI of strigol, as well as its molecular formula. Strigol has four rings and five double bonds, for a total hydrogen deficiency index of 10 . If saturated, a compound with 19 carbon atoms would have 40 hydrogen atoms, but an HDI of 10 means that 20 hydrogen atoms are missing. So there must be 20 hydrogen atoms in the formula. Inspection of the structure also reveals 6 oxygen atoms, so the molecular formula of strigol must be C 19 H 20 O 6 .
Chemistry
1 answer:
Len [333]2 years ago
7 0

The hydrogen deficiency index( HDI) of strigol is = 10

<h3>How to calculate HDI:</h3>

The hydrogen deficiency index is used to measure the number of degree of unsaturation of an organic compound.

Strigol is an example of an organic compound because it contains carbons and hydrogen.

To calculate the HDI using the molecular formula given (C19H20O6) the formula for HDI is used which is:

hdi =  \frac{1}{2} (2c + 2 + n - h - x)

where C = number of carbon atoms = 19

n= number of nitrogen atoms = 0

h= number of hydrogen atoms = 20

X = number of halogen atoms = 0

Note that oxygen was not considered because it forms two bonds and has no impact.

There for HDI =

\frac{1}{2} (2 \times 19 + 2 + 0 - 20 - 0)

HDI=

\frac{1}{2} (40 - 20)

HDI =

\frac{1}{2}  \times 20

HDI = 10

Therefore, the hydrogen deficiency index of strigol is = 10

Learn more about unsaturated compounds here:

brainly.com/question/490531

You might be interested in
An ionic bond is best described as
LekaFEV [45]
The answer would be B the transfer of electrons from one atom to another
6 0
3 years ago
Read 2 more answers
When 0.5141 g of biphenyl (C12H10) undergoes combustion in a bomb calorimeter, the temperature rises from 25.823 °C to 29.419 °C
natka813 [3]

Answer:

\Delta_{r}U of the reaction is -6313 kJ/mol

\Delta_{r}H of the reaction is -6312 kJ/mol

Explanation:

Temperature\,\,change= \Delta U = 29.419-25.823 =3.506^{o}C

q_{cal}= C \times \Delta T

=5.861 \times 3.596 = 21.076\,kJ

q_{rxn}= -q_{cal}= -21.076\,kJ

\Delta_{r}U= -21.076 \times \frac{154}{0.5141}= -6313\, kJ/mol

Therefore, \Delta_{r}U of the reaction is -6313 kJ/mol.

The chemical reaction in bomb calorimeter  is as follows.

C_{12}H_{10}(s)+\frac{27}{2}O_{2}(g)\rightarrow 12CO_{2}(g)+5H_{2}O(g)

Number\,of\,moles\Delta n=(12+5)-\frac{27}{2}=3.5

\Delta_{r}H=\Delta E+ \Delta n. RT

=-6313+3.5\times 8.314\times 10^{-3} \times 3.596=-6312\,kJ/mol

Therefore, \Delta_{r}H of the reaction is -6312 kJ/mol.

3 0
3 years ago
7. if you kick a tennis ball with 50 N of force and then kick a soccer ball with 50 N of force,
BabaBlast [244]

Answer:

It depends of how heavy the object is so i would say the tennis ball would go the farthest. And the amount of air it has!

Explanation:

5 0
3 years ago
List some general characteristic of producers and list and a few examples
kotykmax [81]

Answer:

pooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooop

Explanation: fart

8 0
3 years ago
The radius of a vanadium atom is 130 pm. How many vanadium atoms would have to be laid side by side to span a distance of 1.30 m
monitta

Answer:

5 000 000 (5 million atoms)

Explanation:

Let us assume that a vanadium atom has a spherical shape.

diameter of a sphere = 2 x radius of the sphere

Thus,

Radius of a vanadium atom = 130 pm

                                              = 130 x 10^{-12} m

The diameter of a vanadium atom = 2 x radius

                                                         = 2 x 130 x 10^{-12}

                                               = 260 x 10^{-12} m

Given a distance of 1.30 mm = 1.30 x 10^{-3} m,

The number of vanadium atoms required to span the distance = \frac{1.3*10^{-3} }{260*10^{-12} }

                                                  = 5000000

Therefore, the number of vanadium atom that would span a distance of 1.30 mm is 5 million.

3 0
3 years ago
Other questions:
  • 2Li +__H₂0= __LiOH+H₂<br> balance the equation
    8·1 answer
  • If ine mole of pennies were divided amung 250 million peoplein
    5·1 answer
  • ​29. A gas has a volume of 1.75 L at -23°C and 150.0 kPa.
    12·1 answer
  • How are earthquake waves and sound waves alike?
    9·1 answer
  • KBr will undergo dissociation in solution while benzene will undergo solvation. True or False
    6·1 answer
  • Help pls match allll
    14·1 answer
  • Which of the following hydrocarbons will be the most acidic?
    10·1 answer
  • Predict the products for the following chemical reaction: H2 + O2 →
    7·1 answer
  • The element that corresponds to the electron configuration 1s22s22p63s23p64s13d5 is
    6·1 answer
  • Explain the impact that changing the temperature has on a system in a state of dynamic equilibrium. what will happen when the te
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!