Answers
Answer:
The functional group is called an amide. This is option C.
Explanation:
We see this is a three-carbon chain (a propyl chain), that ends with a double bond to oxygen and a single bond to an amine group (NH2). If the end carbon were only bound to the NH2 group and 2 hydrogen atoms, it would be an amine. If the end carbon only had a double bond to oxygen and a single bond to hydrogen, it would be an aldehyde. However, when a terminal carbon (a carbon at the end of a chain) has both a double bond to oxygen, and a single bond to an amine (NH2), it is called an amide.
We can also discount the answer thiol right away because those have a carbon-sulfur bond, and there is no sulfur in this molecule.
Related Questions
Which of the following solution(s) would be a buffer? Select all that apply.
a. 100.0 mL of a solution that contains 0.100 M benzoic acid and 0.100 M potassium benzoate
b. 100.0 mL of a 0.100 M propanoic acid to which 50.0 mL of 0.100 M sodium hydroxide has been added
c. 100.0 mL of a 0.100 M formic acid solution
d. 100.0 mL of a solution that contains 0.100 M hydrochloric acid and 0.100 M sodium chloride
e. 100.0 mL of a 0.100 M solution of acetic acid in which 0.100 g of sodium acetate is dissolved
Answers
a. 100.0 mL of a solution that contains 0.100 M benzoic acid and 0.100 M potassium benzoate
b. 100.0 mL of a 0.100 M propanoic acid to which 50.0 mL of 0.100 M sodium hydroxide has been added
c. 100.0 mL of a 0.100 M formic acid solution
d. 100.0 mL of a solution that contains 0.100 M hydrochloric acid and 0.100 M sodium chloride
e. 100.0 mL of a 0.100 M solution of acetic acid in which 0.100 g of sodium acetate is dissolved
As a buffer is defined as the aqueous mixture of a weak acid and its conjugate base. Or a weak base and its conjugate acid. Thus:
a, b and e would be a buffer.The benzoic acid is a weak acid, its conjugate base is the benzoate ion that comes from potassium benzoate. Thus: a is a buffer.
Propanoic acid (weak acid) reacts with a strong base as sodium hydroxide producing its conjugate base (propanoate ion). Thus, b is a buffer.
Formic acid is a weak acid but its conjugate base, formate ion is not present in the solution. Thus, c is not a buffer.
Hydrochloric acid is a strong acid and sodium chloride a salt. Thus, d is not a buffer.
Acetic acid is a weak acid, and its conjugate base, acetate ion (That comes from sodium acetate) is present in the solution. Thus, e is a buffer.
A 2.25 mol sample of oxygen occupies 1.80 L at 25.0°C. What volume will
it occupy with 3.7 moles?
Answers
Answer:
2.96 L
Explanation:
We apply the Ideal Gases Law to determine this:
P . V = n . R . T
Firstly we need to know the pressure for the 2.25 moles
P . 1.80L = 2.25 mol . 0.082 L.atm/mol.K . 298K
(We convert T°C to T°K, 25°C + 273 = 298K)
P = (2.25 mol . 0.082 L.atm/mol.K . 298K) / 1.80L
P = 30.5 atm
So now, we apply the pressure value for the new conditions:
30.5 atm . V = 3.7 mol . 0.082 . 298K
V = (3.7 mol . 0.082 . 298K) / 30.5atm = 2.96 L
Foods that are basic can be identified by what taste
Answers
Explanation:
sweet,sour,salty, savoury
Answer: bitter
Explanation:
PLeaseee ITS Timedddd + BrainlIESTT
A 6.50 gram piece of aluminum reacts with an excess of oxygen. use the balanced equation below to determine how many grams of aluminum oxide is formed during this reaction.
4 Al + 3 O2 --> 2 Al2O3
a. 662.7 grams of Al2O3
b. 6.1 grams of Al2O3
c. 24.6 grams of Al2O3
d. 12..3 grams of Al2O3
Answers
Answer:
d. 12.3 grams of Al2O3
Explanation:
Based on the reaction:
4Al + 3O2 → 2Al2O3
Where 4 moles of Al reacts in excess of oxygen to produce 2 moles of aluminium oxide.
To solve this question we must find the moles of Aluminium. With these moles we can find the moles of aluminium oxide using the reaction:
Moles Al -Molar mass: 26.9815g/mol-
6.50g * (1mol / 26.9815g) = 0.241 moles Al
Mass Al₂O₃ -Molar mass: 101.96g/mol-
0.241 moles Al * (2 mol Al2O3 / 4 mol Al) = 0.120 moles Al2O3
0.120 moles Al2O3 * (101.96g / mol) =
12.3g of Al2O3 are produced.
Right answer is:
d. 12.3 grams of Al2O3How many hydrogen atoms are in 1 molecule of isopropyl alcohol, C3H70?
Answers
Answer:
7 hydrogen atoms
Explanation:
As we can see in the formula of isopropyl alcohol, C3H70, total 7 hydrogen atoms are bound to three carbon and one oxygen atom in different manner.
Thus, it can be said that there are 7 hydrogen atoms in 1 molecule of isopropyl alcohol, C3H7O
Which term describes the following group of planets: Jupiter, Saturn, Uranus, and
Neptune?
Answers
Answer:
Gas giants.
Explanation:
Jupiter, Saturn, Uranus, and Neptune are the gas giants of our solar system.
Which statement describes particles of an ideal gas, based on the kinetic molecular theory?
A) Gas particles are separated by distances smaller than the size of the gas particles.
B) Gas particles do not transfer energy to each other when they collide.
C) Gas particles have no attractive forces between them.
D) Gas particles move in predictable, circular motion.
Answers
Answer:
The answer is C. Gas particles have no attractive forces between them.
Explanation:
Answer:
I also think the answer is C
Students place paper clips on a desk and then hold a magnet under the desk. What evidence would BEST show that the
magnetic field was able to pass through the desk?
O A The top of the desk is made of a kind of plastic.
OB. The paper clips move when the magnet is moved under the desk.
OC. The magnet they are using is the largest one in the classroom.
OD. The students were able to pick up these paper clips with a magnet.
Answers
Answer:
B
Explanation:
got it right on test
Answer:
Yes the correct answer is B
Explanation:
Have a good day!!!
1. Scientists measured the spot size of guppies (small fish) in two different populations. Which
population has more guppies with large spots?
a
They both have the same number of guppies with large spots.
b
The population in Brazil has more guppies with large spots.
С
The population in Venezuela has more guppies with large spots.
d
These bar graphs do not show which population has more guppies with large spots.
Answers
Answer: the answer is C
Explanation:
1
13
20
7
10
9
11
What number represents a mole?
Answers
Which of the following best describes an electron?
It has no charge and about the same mass as a proton.
It has a positive charge and much more mass than a neutron.
t has a negative charge and much less mass than a proton.
It has a negative charge and about the same mass as a neutron.
Answers
Answer:
it would be number 4
Explanation:
help please
If you have 100 grams of a radioactive isotope with a half-life of 10 years:
part a: How much of the isotope will you have left after 10 years?
part b: How much of the isotope will you have left after 20 years?
part c: How many half-lives will occur in 40 years?
Answers
Answer:
part a: How much of the isotope will you have left after 10 years?
100/2 = 50 gpart b: How much of the isotope will you have left after 20 years?
50/2 = 25 gpart c: How many half-lives will occur in 40 years?
40/10 = 4Calculate the molarity of a solution of 0.030 mol of HCl in 0.15L of solution?
Answers
Answer:
0.20M
Explanation:
Molarity (by definition) = moles / Volume in Liters
∴Molarity = 0.030mol/0.15Liter = 0.20M
as- The salt left in the evaporating
basin is often a little dirty
suggest what you could do to
get cleaner salt
Answers
Answer:
Pour the filtrate into an evaporating basin. Heat the salt solution gently until it starts to decrepitate .keep eye protection on and do not get too close. Turn off the Bunsen burner and let the damp salt dry in the dish
In evaporation particles of water take energy in the form of sunlight from the surrounding and then convert into vapor phase. Therefore heating is the only technique for getting pure salt.
What is evaporation?Evaporation is a physical process in which the water in liquid state converts to gaseous state at the temperature below its boiling point. Evaporation happens before the boiling process.
Evaporation causes cooling effect in the surrounding. During summer when water is kept in earthen pot water cools, this is because of the evaporation process.
Evaporation is affected by temperature. As the temperature increases the rate of evaporation increases and hence in summer there is more evaporation and hence there is lot more water in air.
Pour the filtrate into an evaporating basin. Heat the salt solution gently until it starts to decrepitate .Turn off the Bunsen burner and let the damp salt dry in the dish.
Therefore heating is the only technique for getting pure salt.
To know more about evaporation, here:
https://brainly.com/question/8169606
#SPJ2
PLEASE HELP!!!! Assuming a lacrosse ball weighs 5.5 ounces and is made of mainly rubber which has a mass of 82.2 g/mol, how many particles are in a lacrosse ball?
Answers
EXPLANATION:
5.5 oz = 155.92 g
155.92 g x (1 mol/82.2 g) = 1.8956 mol
(6.02 x 10^23) x 1.8956 = 11.412 x 10^23
List the following elements from increasing electronegativity: boron, magnesium, calcium, chlorine, argon
Answers
Answer:
The list of elements from increasing electronegativity: Calcium < magnesium < chlorine < argon < boron.
Explanation:
In the periodic table if you move from left to right there would be an increase in the electronegativity of the elements. If you move from the bottom to the top of the groups in the periodic table the electronegativity increases and if u move to the bottom from down its decreases.
Calcium is in the 2nd group below magnesium so calcium is the least electronegative among given elements then magnesium and then chlorine as it is top of magnesium then argon, as it is right to the chlorine, and boron has the most electronegativity as it is above rest of the elements.
What is the pH of a solution that is 100x more acidic than a solution with a pH of 5?
Answers
Answer:3
Explanation:
6. Too much rainwater can cause a slope or hillside to collapse through a process called a
(6 Points)
mudslide
snowslide
o avalanche
storm
Answers
Answer:
mudslide
Explanation:
a mass of mud and other earthy material that is falling or has fallen down a hillside or other slope
all the mixture are harmful for us. is this statement true? justify with two examples
Answers
Answer:
no.it is false.some are useful.like mixture of h2 and O 2 to form water.
Answer:
no some of mixture are useful
Explanation:
h2 and o2 to form water
Balance the following reaction _ Al + _ Cl, → _ AICI,
Answers
Answer:
1 Al + 1 Cl -> 1 AlCl
Explanation:
It is already balanced.
When trying to clean muddy, dirty river water, which method would work
best?
chromatography
filtration
magnetism
distillation
Answers
A truck can carry a maximum load of 8000 kg.
The truck is loaded with packages each with a mass of 35 kg
correct to two significant figures.
Calculate the maximum number of packages
that the truck can carry.
did any one tell me the answer it's from lower and upper bound chapter
Answers
8000 / 35 = 228.57 —> You want to round down in this context, because 229 packages would exceed the weight limit.
GAS LAW:
If 2.2 liter of hydrogen are heated from 0 degrees celsius to 95 degrees celsius at the constant pressure what is the new volume?
Answers
Answer:
bh yftd5xsdcfvgbhnjm
Explanation:
"Reduce, reuse, recycle." Give examples of how one or more of
these ideas can be applied to the issues and practices of hydraulic
fracturing for the acquisition of shale gas.
Answers
Answer:
Examples of how the ideas can be applied to the issues and practices of hydraulic fracturing for the acquisition of shale gas are;
Reuse; The produced water in obtained from oil and gas well production are reused for fracking, drilling, and if the water is good enough, it can be used for farming
Reduce; The use of recycled brine and water in drilling and fracking process reduces the application of freshwater in the those processes and reduces pollution of natural water sources
Recycle; Recycling involves creating products from waste. In the hydraulic fracturing process approximately 13 percent of the water produced and the flowback water are recycled to be used more than once thereby reducing the net consumption of freshwater
Explanation:
In hydraulic fracturing, also known informally as fracking, is the drilling method used in oil and gas well development process that makes use of water sand and chemical injection through the well bore to open and widen cracks in the bedrock formations in the areas around the wellbore.
what mass of water should be added to 22 g of KCl to make 5.50% by mass solution?
Answers
383.5 grams is the mass of water should be added to 22.0 g of KCl to make a 5.50 % by mass solution.
HELP!! ASSIGNMENT DUE TODAY! PLEASE HELP!!! I'LL GIVE 21 POINTS!!!!
Respiration occurs in the cytoplasm and _________ of cells.
Answers
mitochondria
im not 100% sure but it makes sense
How many moles of CO2 gas will be produced in the reaction between baking soda (sodium hydrogen carbonate) and vinegar (acetic acid) if 6 mol of baking soda is reacted in excess vinegar?
Answers
Answer:
[tex]6molCO_2[/tex]
Explanation:
Hello there!
In this case, according to the described reaction, we can set up the chemical equation as shown below:
[tex]NaHCO_3+CH_3COOH\rightarrow CO_2+H_2O+CH_3COONa[/tex]
We can evidence the 1:1 mole ratio of baking soda (NaHCO3) to CO2 and therefore the produced moles of latter are calculated as shown below:
[tex]6molNaHCO_3*\frac{1molCO_2}{1molNaHCO_3} \\\\6molCO_2[/tex]
Best regards!
K,Co, is added to a volume of distilled water. Which of the following statements is correct? (1) The freezing and boiling points increase. (2) The freezing and boiling points decrease. (3) The freezing point increases and the boiling point decreases. (4) The freezing point decreases and the boiling point increases
Answers
Balance the following reaction
HgO → _ Hg +_ 02
Answers
Answer:
reeeeeeeeeeeeeeeeeeeee
Explanation:
cancer
1 point
Calculate the [H+] in a solution with a pH of 3.71, and identify the solution
as acidic, basic or neutral. *
1.9x10^-4 M ; acidic
5.12x10^-10; acidic
02.4x10^-3 M ; basic
Answers
Answer:
I don't have any idea of this question