The aldehyde C-H stretch is present at 2850 cm-1, which differentiates it from the ketone in the spectrum.
What is the frequency of the infrared spectrum?Infrared (IR) spectroscopy is a powerful analytical tool used to identify functional groups present in organic compounds. The absorption of infrared radiation by a molecule causes its vibrational energy levels to change.
The position and intensity of the absorption bands in the IR spectrum provide information about the functional groups present in the molecule. In the case of an aldehyde and a ketone, both have a carbonyl group with similar carbonyl absorbance, but the aldehyde can be differentiated by an additional C-H stretch.
This additional stretch occurs between 2700-2900 cm-1, which is a characteristic frequency for aldehydes. Therefore, the presence of an absorption peak at 2850 cm-1 indicates the presence of an aldehyde C-H stretch, while its absence suggests a ketone.
Learn more about spectroscopy
brainly.com/question/28523860
#SPJ11
Please help!!
You have 5 moles of marbles. How many marbles is this?
Answer:
The answer is 3.011x^24 marbles
Explanation:
6.022 x 10^23 x 5 = 3.011 x 10^24
How many pounds of ice are required to absorb 4900 kJ of heat as the ice melts? The heat of fusion of water is 0.334 kJ/g.
Answer:
m = 32.34 pounds of ice.
Explanation:
In this case we need to use the following expression of heat:
q = m * ΔHf (1)
Where:
q: heat absorbed in J or kJ
m: mass of the compound in g
ΔHf: heat of fusion of the water in kJ/g
We are asked to look for the mass of ice in pounds, so after we get the grams, we need to convert the grams to pounds, using the following conversion:
1 pound --------> 453.59 g (2)
So, we have the heat and heat of fusion, from (1) let's solve for the mass, and then, using (2) the conversion to pounds:
q = m * ΔHf
m = q / ΔHf
m = 4900 / 0.334 = 14,670.66 g of ice
Now, the conversion to pounds:
m = 14,670.66 g * 1 pound/453.59 g
m = 32.34 pounds of ice.Hope this helps
every time atoms form a new bond, the reaction releases____
A) Time
B) Muir
C) Energy
Answer:
c. energy
Explanation: an atom increases negative charge put frustration/ stress on other electrons causing alot of energy to be released.
if you have 3.4 grams of carbon how many moles of carbon would you have
Help me with this please
= 0.2+560.66JK-2eF
use this app : Photomath
It will help you :)
How many GRAMS of H2 would you need to produce 2.5 mol NH3?
Using the proportions of the amount of the molecules, we can convert from any reagent or product to any other reagent or product. In the context of this reaction, for every mole of N2 and every 3 moles of H2 we obtain 2 moles of NH3.
What mass of MnCl2 is produced when 0.091 g of Cl2 is generated?
The mass of MnCl2 that is produced when 0.091 g of Cl2 is generated is 0.16 g.
Molar mass of MnCl₂ = 55 + 35.5(2) = 126 g/mol
Molar mass of Cl₂ = 35.5(2) = 71 g/mol
If 71 g of Cl₂ gives 126 g of MnCl₂
0.091 g of Cl₂ will give ? of MnCl₂
cross multiply
mass of MnCl₂ produced = 0.091 × 126 / 71
mass of MnCl₂ produced = 11.466 / 71
mass of MnCl₂ produced = 0.16149295774
mass of MnCl₂ produced ≈ 0.16 g
learn more about mass stoichiometric here: https://brainly.com/question/2617347?referrer=searchResults
how does the total mass of each object increases the amount of force that is needed to get them moving at 5 m/s increase by about 200N demonstrate newtons 2nd law
Answer:
The answer is below
Explanation:
Newton's second law of motion states that the force applied to an object is directly proportional to the rate of change of momentum with respect to time, going in the same direction as the force.
Let F = force, m = mass of object, v = velocity of object, mv = momentum.
F = d/dt(mv) = m(dv / dt) = ma; a = acceleration.
Let us assume that the object starts from rest to 5 m/s within 1 seconds, hence:
F = m(dv / dt)
200 N = m[(5 m/s - 0 m/s) / (1 s)]
200 = 5m
m = 40 kg
(HELP) how can you make the metal chair less cold when you sit on it?
Answer:
metal can hold heat keep it near fire
Escoge uno de los derechos de la siguiente lista que están Escogidos en el código de la niñez y adolescencia escribe en una hoja porque es importante que se garantice el derecho que escojiste SI requiere ampliar la información REVISA "el código de la niñez y la escencia"
Answer:
Hehe I don't know spanish -
Explanation:
i need help with chemistry asap. the copounds Ch3Oh and Ch3CooH react in the presence of an acid catalyst to form. A. a carboxylic B. an aldehyde C. a ketone and D. an ester.
Look at the image below:
Palet Reyes
Preiste
Las Trances
San Juan Bautista
Panades
NORTH AMERICAN PLATE
und
SACRO PLATE
Carne Plan
ANDREAS PAUL
What type of plate boundary is shown here?
convergent
divergent
O transform
Answer:
Thats also transform boundary
please help me! (brainliest)
Answer:
It is A
Explanation:
17.The column that an element is located in tells us
a.the total number of valence electrons an atom has.
b.the total number of energy levels an atom of that element has.
c.the highest energy level an atom of that element has.
d.both b & c.
What does not allow electricity to run through it?
Answer:
The answer is insulators.
Explanation:
Answer:
Things that cannot be powered by electricity.
What temperature scale is used in the ideal gas equation?
A. Kelvin
B. Fahrenheit
C. Celcius
D. Doesn't matter
kelvin
hope that helps^^
plz someone help with this
Answer:
4 I believe is false and 5 is D I think
Answer:
4.) A. (TRUE)
5.) B. (THE WEATHER AND CLIMATE)
Explanation:
I HOPE IT HELPS YOU;)
how can you find the charge on po4
Answer:
Answer:
Explanation:
I hope it's helpful!
consider a sample of compound contain 1.719c 0.284gh so find emprisical formula
Plz help
What does the acid test tell you about a mineral?
A. Whether it is a carbonate
B. whether it is organic
C. Whether it is man-made or natural
D. Whether it is a silicate
Science A P E X
.........m.......................
i need ur help guys
Answer:
Uses of Sodium chloride:
1.it is used as table salt in our diets
2. it is used as a food preservative
3. It is used as an industrial source of sodium and chlorine
Uses of Sodium hydroxide:
1. It is in the laboratory as an alkali in the neutralization of acids
2. It is used in the manufacture of soap
3. It is used in the refining of petroleum
Uses of Sodium carbonate:
1. It is used in the manufacture of detergents and glass
2. It is used to soften hard water
3. it is used to standardize acids in the laboratory
Uses of Sodium sulphate
1. It is used in the manufacture of detergents and glass
2. It is used as a purgative
3. It is used to treat wood-pulp for paper making.
Uses of Potassium nitrate
1. It is used in making gunpowder
2. It is used as rocket propellant
3. It is used in making fertilizer
Uses of Potassium chlorate
1. It is used as an oxidizer
2. It is used in making explosives
3. it is used as a disinfectant
Uses of Potassium permanganate (vii)
1. It is used as an oxidizing agent
2. It is used as a disinfectant
3. It is used as an analytical reagent
Uses of Potassium chloride
1. It is used for the manufacture of fertilizer
2. It is used as an alternative salt to sodium chloride
3. It is used in medicine to treat low blood pressure
2. Potassium nitrate and potassium chloride are used in the manufacture of fertilizers.
Potassium nitrate is used in fertilizers because it provides two important plant nutrients, nitrogen and potassium to plants.
Potassium chloride (potash) is used in fertilizers because it efficiently deliver the important plant nutrient, potassium, to plants.
Explanation:
Uses of Sodium chloride:
1. it is used as table salt in our diets
2. it is used as a food preservative
3. It is used as an industrial source of sodium and chlorine
Uses of Sodium hydroxide:
1. It is in the laboratory as an alkali in the neutralization of acids
2. It is used in the manufacture of soap
3. It is used in the refining of petroleum
Uses of Sodium carbonate:
1. It is used in the manufacture of detergents and glass
2. It is used to soften hard water
3. it is used to standardize acids in the laboratory
Uses of Sodium sulphate
1. It is used in the manufacture of detergents and glass
2. It is used as a purgative
3. It is used to treat wood-pulp for paper making.
Uses of Potassium nitrate
1. It is used in making gunpowder
2. It is used as rocket propellant
3. It is used in making fertilizer
Uses of Potassium chlorate
1. It is used as an oxidizer
2. It is used in making explosives
3. it is used as a disinfectant
Uses of Potassium permanganate (vii)
1. It is used as an oxidizing agent
2. It is used as a disinfectant
3. It is used as an analytical reagent
Uses of Potassium chloride
1. It is used for the manufacture of fertilizer
2. It is used as an alternative salt to sodium chloride
3. It is used in medicine to treat low blood pressure
2. Potassium nitrate and potassium chloride are used in the manufacture of fertilizers.
Potassium nitrate is used in fertilizers because it provides two important plant nutrients, nitrogen and potassium to plants.
Potassium chloride (potash) is used in fertilizers because it efficiently deliver the important plant nutrient, potassium, to plants.
What would the [OH-] of a solution that has a pOH of 2.7 be?
Answer:
The [OH⁻] of a solution that has a pOH of 2.7 will be 2*10⁻³
Explanation:
The pOH (or potential OH) is a measure of the basicity or alkalinity of a solution.
pOH indicates the concentration of hydroxyl ions [OH-] present in a solution. In this way, pOH is defined as the negative logarithm of the activity of hydroxide ions, that is, the concentration of OH- ions:
pOH= -log [OH⁻]
In this case, pOH has a value of 2.7. Replacing:
2.7= -log [OH⁻]
and solving:
[OH⁻]=10⁻² ⁷
you get:
[OH⁻]≅ 2*10⁻³
The [OH⁻] of a solution that has a pOH of 2.7 will be 2*10⁻³
A sample of an oxide of nitrogen is found to contain 30.4% nitrogen. What is its empirical formula?
Answer:
If nitrogen = 30.4% then oxygen = 100-30.4 = 69.6%
divide each % value by atomic mass
N = 30.4/14 = 2.17
O = 69.6/16 = 4.35
Divide each y smaller:
N = 2.17/2.17 = 1
O = 4.35/2.17 = 2
Explanation:
"The empirical Formula will be [tex]NO_{2}[/tex]."
What is empirical formula?
In chemistry, an empirical formula is the simplest thought of the entire number quantity of atoms in a molecule.
It is given that N = 30.4%.
The % of O can be determined as: 100-30.4%= 69.65.
Now, after dividing % value with atomic mass, we get.
Mass of N= 14 and Mass of O = 16.
N= 30.4/14= 2.17
O = 69.6/ 16= 4.35
It can be seen that N has less number as compared to O . So, divide each with 2.17.
N= 2.17/2.17 = 1
O = 4.35/2.17=2
So the empirical formula will be [tex]NO_{2}[/tex].
To know more about empirical formula click here.
https://brainly.com/question/21280037.
#SPJ2
What is the percent by mass of water in the hydrate CoCl₂ · 6H₂O?
Answer:
You'll get 52.17%
Explanation:
Ha hatdog hatdog hatdog because?
Answer:
what's this? s*it fellow
uska dil ker raha tha isleye
When explaining chemical reactions to a friend, Brianna models a reaction by taking several colors of modeling clay and making a sculpture of a horse. Which type of chemical reaction is Brianna most likely explaining?
Explanation: Here are the different coloured that are used to join and make one piece this method that Brianna is following is called synthesis.
25.0 g Fe2CO3 reacts with 20.0 g CO in the reaction below. What is the limiting reactant and what best explains why is this reactant limiting?
Fe2CO3 + CO --> 2Fe + 2CO2
Answer:
In a chemical reaction, reactants that are not used up when the reaction is finished are called excess reagents. The reagent that is completely used up or reacted is called the limiting reagent, because its quantity limits the amount of products formed. It represents a reaction of a metal and a diatomic gas chlorine.
HELP ASAP!!!!!! 30 PTS
Mouth, throat, kidney, and stomach cancers can each be linked to a common cause.
Which can be a cause of any of these cancers?
UV radiation
tobacco use
diabetes
sickle cell anemia
Answer:
Tobacco use
Explanation:
Smoking causes cancer, heart disease, stroke, lung diseases, diabetes, and chronic obstructive pulmonary disease (COPD), which includes emphysema and chronic bronchitis. Smoking also increases risk for tuberculosis, certain eye diseases, and problems of the immune system, including rheumatoid arthritis
Answer:
c. Tabaco use
Explanation:
write the ground state electronic configuration of an atom having atomic mass number 37 and number of neutrons 20.
Answer: The ground state electronic configuration of an atom having atomic mass number 37 and number of neutrons 20 is [tex]1s^22s^22p^63s^23p^5[/tex]
Explanation:
Atomic number is equal to the number of protons.
Mass number is the sum of number of neutrons and number of protons.
Mass number = number of neutrons + number of protons
37 = 20 + number of protons
number of protons = 17
The atomic number is specific to an element, and the element with atomic number 17 is chlorine.
Electronic configuration represents the total number of electrons that a neutral element contains.
[tex]Cl:17:1s^22s^22p^63s^23p^5[/tex]
Calculate number of g H3PO3 formed from 53.6 g H2O react with excess PCl3?
PCl3 + H2O → HCl + H3PO3
81.3 g H₃PO₃
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
Reading a Periodic TableStoichiometry
Reaction Molar RatiosUsing Dimensional AnalysisExplanation:Step 1: Define
[RxN - Unbalanced] PCl₃ + H₂O → HCl + H₃PO₃
↓
[RxN - Balanced] PCl₃ + 3H₂O → 3HCl + H₃PO₃
[Given] 53.6 g H₂O
[Solve] x g H₃PO₃
Step 2: Identify Conversions
[RxN] 3 mol H₂O → 1 mol H₃PO₃
[PT] Molar Mass of H - 1.01 g/mol
[PT] Molar Mass of O - 16.00 g/mol
[PT] Molar Mass of P - 30.97 g/mol
Molar Mass of H₂O - 2(1.01) + 16.00 = 18.02 g/mol
Molar Mass of H₃PO₃ - 3(1.01) + 30.97 + 3(16.00) = 82.00 g/mol
Step 3: Stoich
[S - DA] Set up: [tex]\displaystyle 53.6 \ g \ H_2O(\frac{1 \ mol \ H_2O}{18.02 \ g \ H_2O})(\frac{1 \ mol \ H_3PO_3}{3 \ mol \ H_2O})(\frac{82.00 \ g \ H_3PO_3}{1 \ mol \ H_3PO_3})[/tex][S - DA] Multiply/Divide [Cancel out unit]: [tex]\displaystyle 81.3023 \ g \ H_3PO_3[/tex]Step 4: Check
Follow sig fig rules and round. We are given 3 sig figs.
81.3023 g H₃PO₃ ≈ 81.3 g H₃PO₃