Answers
Answer:
\(\rm C_2H_8N_2O_3\).
Explanation:
Step One: calculate the coefficients.Look up the relative atomic mass of these four elements on a modern periodic table:
\(\rm C\): approximately \(12\).\(\rm H\): approximately \(1\).\(\rm N\): approximately \(14\).\(\rm O\): approximately \(16\).The relative atomic mass of an element is numerically equal to the mass (in grams, \(\rm g\),) of one mole of atoms of this element.
For example, the relative atomic mass of \(\rm C\) is approximately \(12\). Therefore, each mole of \(\rm C\!\) atoms would have a mass of \(12\; \rm g\).
This sample contains \(24\; \rm g\) of carbon. That would correspond to approximately \(\displaystyle \left(\frac{24}{12}\right)\; \rm mol = 2\; \rm mol\) of \(\rm C\) atoms.
Similarly, for the other three elements:
\(\displaystyle n(\mathrm{H}) \approx \frac{8\; \rm g}{1\; \rm g \cdot mol^{-1}} = 8\; \rm mol\).
\(\displaystyle n(\mathrm{N}) \approx \frac{28\; \rm g}{14\; \rm g \cdot mol^{-1}} = 2\; \rm mol\).
\(\displaystyle n(\mathrm{O}) \approx \frac{48\; \rm g}{16\; \rm g \cdot mol^{-1}} = 3\; \rm mol\).
Hence, the ratio between these elements in this compound would be:
\(n(\mathrm{C}): n(\mathrm{H}): n(\mathrm{N}):n(\mathrm{O}) = 2: 8 : 2 : 3\).
In the empirical formula of a compound, the coefficients should represent the smallest possible integer ratio between the number of atoms of these elements.
\(n(\mathrm{C}): n(\mathrm{H}): n(\mathrm{N}):n(\mathrm{O}) = 2: 8 : 2 : 3\) is indeed the smallest possible integer ratio between the number of atoms of these elements.
Step Two: arrange the elements in an appropriate orderApply the Hill System to arrange these four elements in the empirical formula. In the Hill System:
If carbon, \(\rm C\), is present in this compound, then:
\(\rm C\) (carbon) and then \(\rm H\) (hydrogen) will be the first two elements listed in the formula (ignore the hydrogen if it is not in the compound.) The other elements in this compound will be listed in alphabetical order.If there is no carbon \(\rm C\) in this compound, then list all the elements in this compound in alphabetical order.
Both \(\rm C\) (carbon) and \(\rm H\) (hydrogen) are found in this compound. Therefore, the first element in the list would be \(\rm C\!\). The second would be \(\rm H\!\), followed by \(\rm N\!\) and then \(\rm O\!\).
Hence, the empirical formula of this compound would be \(\rm C_2H_8N_2O_3\).
The empirical formula of the compound is C₂H₈N₂O₃
From the question given above, the following data were:
Carbon (C) = 24 g
Hydrogen (H) = 8 g
Nitrogen (N) = 28 g
Oxygen (O) = 48 g
Empirical formula =?The empirical formula of the compound can be obtained as follow:
C = 24 g
H = 8 g
N = 28 g
O = 48 g
Divide by their molar massC = 24 /12 = 2
H = 8 /1 = 8
N = 28 /14 = 2
O = 48 / 16 = 3
We can see from the above calculations that the elements are in simple whole number ratio.
Thus, the empirical formula of the compound is C₂H₈N₂O₃
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Related Questions
The half reaction with a more positive standard reduction potential will
Answers
The half reaction with a more positive standard reduction potential will proceed spontaneously in a redox reaction
The half reaction with a more positive standard reduction potential will undergo reduction when compared to the half reaction with a more negative standard reduction potential.
Oxidation-reduction reactions, often known as redox reactions, are a set of chemical reactions that involve electron transfer between reactants. In a redox reaction, one reactant is oxidized, losing electrons, while the other reactant is reduced, gaining electrons.
The oxidation half-reaction is the process of losing electrons and increasing the oxidation number, whereas the reduction half-reaction is the process of gaining electrons and decreasing the oxidation number. The total reaction is referred to as the redox reaction.
Half-reaction:Half-reaction refers to the two parts of an oxidation-reduction reaction that happen separately. A half-reaction must always be either an oxidation reaction or a reduction reaction. It also describes the movement of electrons and hydrogen ions in an equation.
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Can someone explain the Glyceraldehyde structure for me in detail please. I read that the first carbon atom is the only asymmetric one out of all three carbons and that the other two carbons do have four attachments that just aren’t different. I can’t even see how the atoms have four attachments though.
Answers
Answer:
Glyceraldehyde is a simple sugar with three carbon atoms attached to hydroxyl and hydrogen or carbonyl groups. The first carbon atom has four different groups, including an aldehyde group, which makes it asymmetric. This results in two stereoisomers, D-glyceraldehyde and L-glyceraldehyde, that are mirror images of each other and have opposite optical activities.
The central carbon atom in glyceraldehyde is called the chiral or asymmetric carbon atom, because it has four different groups attached to it: a hydrogen atom (-H), a hydroxy group (-OH), a methyl group (-CH3) and a carbonyl group (-CHO). The presence of these four different groups attached to the chiral carbon atom means that there are two possible stereoisomers of glyceraldehyde, which are called D-glyceraldehyde and L-glyceraldehyde.
In D-glyceraldehyde, the hydroxy (-OH) group is located on the right side of the asymmetric carbon atom, while in L-glyceraldehyde, the hydroxy group is located on the left side of the asymmetric carbon atom. This property of having mirror-image isomers is known as chirality, and it is an important aspect of organic chemistry.
The other two carbon atoms in glyceraldehyde also have four attachments, but they are not chiral. This means that the four groups attached to each of these two carbon atoms are not different, and therefore, these two carbon atoms do not have stereoisomers like the chiral carbon atom.
To visualize the structure of glyceraldehyde, you can draw a straight line to represent the backbone of the molecule, with the three carbon atoms in a row. Then, you can draw the four different groups attached to the chiral carbon atom (hydrogen, hydroxy, methyl, and carbonyl) coming off of it in different directions. The other two carbon atoms will also have a hydroxy and a hydrogen group attached to them, but they will be in the same orientation as the hydroxy and hydrogen groups on the chiral carbon atom, since they are not chiral.
The dotted arrow in this reaction is a placeholder. Select the arrow that best describes the relationship between the reactants and products. -CECAH -CEC-L Identify the correct arrow descriptor.
Answers
To solve this, we must know each and every concept related to mechanisms of organic reaction. Therefore, the arrow that best describes the relationship between the reactants and products is the equilibrium arrow. The correct option is option A.
What are mechanisms of organic reaction?The technique of just an organic reactions is just the order of the steps in the process, giving information on which bonds are produced and/or disrupted in each step.
Understanding the processes of organic reactions is vital for understanding Organic Chemistry and for being able to harness the reactions to generate useful molecules. The arrow that best describes the relationship between the reactants and products is the equilibrium arrow.
Therefore, the correct option is option A.
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How much heat must be added to a 34.2 g sample of aluminum in order to raise the temperature of the aluminum 34 oC? (The specific heat of Aluminum is 0.9 J/g oC)
Answers
The amount of heat required to raise the temperature of the 34.2 g sample of aluminum by 34 oC is 1043.52 J.
What is Temperature?
Temperature is a measure of the average kinetic energy of the particles in a substance. It is a physical property that determines the direction of heat flow between two objects or systems in contact with each other. Temperature is measured in degrees Celsius (°C) or Fahrenheit (°F), or in kelvin (K) in the International System of Units (SI).
The amount of heat (q) required to raise the temperature of a substance can be calculated using the formula:
q = m x c x ΔT
Where:
m = mass of the substance (in grams)
c = specific heat of the substance (in J/g oC)
ΔT = change in temperature (in oC)
Plugging in the values given:
m = 34.2 g
c = 0.9 J/g oC
ΔT = 34 oC
q = (34.2 g) x (0.9 J/g oC) x (34 oC)
q = 1043.52 J
Therefore, the amount of heat required to raise the temperature of the 34.2 g sample of aluminum by 34 oC is 1043.52 J.
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If 200. mL of water is added to 10.0 mL of 4.00 M NaCl solution,
is the concentration of the dilute solution?
Answers
Answer:
Therefore, the concentration of the resulting dilute solution is 0.190 M.
Explanation:
To determine the concentration of the resulting dilute solution, we can use the equation:
M1V1 = M2V2
where M1 and V1 are the initial concentration and volume of the solution, and M2 and V2 are the final concentration and volume of the solution.
In this case, the initial solution is 10.0 mL of 4.00 M NaCl, which can be expressed as:
M1 = 4.00 M
V1 = 10.0 mL = 0.0100 L
The final volume of the solution is the sum of the initial volume and the volume of water added:
V2 = V1 + V_water
V2 = 0.0100 L + 0.200 L
V2 = 0.2100 L
Since the amount of NaCl in the solution does not change upon dilution, we can set up the equation and solve for the final concentration:
M1V1 = M2V2
(4.00 M)(0.0100 L) = M2(0.2100 L)
M2 = (4.00 M)(0.0100 L)/(0.2100 L)
M2 = 0.190 M
Therefore, the concentration of the resulting dilute solution is 0.190 M.
what is the compound name of Br5F10
Answers
Pentabromine decaflouride
Explanation:
-This is Pentabromine decaflouride.
-It is formed when 5 molecules of bromine reacts with 10 molecules of flourine.
-It has a molar mass of 589.504 g/mol
How to find answers for a-e
Answers
The balanced equation for the given reaction is Cu\(_2\)SO\(_4\) + Ba(NO\(_3\))\(_2\) →2CuNO\(_3\)+ BaSO\(_4\). The precipitates that result from it are these insoluble salts.
What is precipitation reaction?Chemical reactions known as precipitation reactions take place in aqueous solutions to produce precipitates. Moreover, chemical changes that occur inside the substances are a part of chemical processes. Hence, under some circumstances, it creates an entirely novel element.
It denotes a chemical process in which two ions combine to generate insoluble salts in aqueous solutions. The precipitates that result from it are these insoluble salts. Single displacement reactions and double displacement reactions are also possible.
a)The balanced equation for the given reaction is
Cu\(_2\)SO\(_4\) + Ba(NO\(_3\))\(_2\) →2CuNO\(_3\)+ BaSO\(_4\)
b) moles of Ba(NO\(_3\))\(_2\) = 0.02×0.2=0.04moles
The mole ratio between Ba(NO\(_3\))\(_2\) and BaSO\(_4\) is 1:1
moles of BaSO\(_4\)= 0.04moles
Therefore, the balanced equation for the given reaction is
Cu\(_2\)SO\(_4\) + Ba(NO\(_3\))\(_2\) →2CuNO\(_3\)+ BaSO\(_4\)
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2. Describe how changes (mutations) to genes can result in changes to proteins.
Answers
Changes or mutations in genes can lead to changes in proteins through their impact on the genetic code and subsequent protein synthesis.
Genes carry the instructions necessary for the production of proteins, which are essential for various cellular functions. Mutations can occur spontaneously or due to factors such as environmental exposures, errors during DNA replication, or genetic predispositions.
Mutations can take various forms. Substitution mutations involve the replacement of a single nucleotide base with another, potentially altering the codon sequence in the gene. This change can result in the incorporation of a different amino acid during translation, leading to an altered protein structure and function.
Insertion or deletion mutations involve the addition or removal of nucleotides in the gene sequence. These mutations can disrupt the reading frame, causing a shift in the codon sequence downstream. As a consequence, the resulting protein can have an entirely different amino acid sequence, often resulting in a non-functional or severely impaired protein.
Mutations in regulatory regions of genes can also impact protein production. These regions control gene expression by influencing the binding of transcription factors. Alterations in these regulatory elements can lead to changes in the amount of protein produced, affecting cellular processes.
Overall, mutations in genes can result in changes to proteins by modifying the genetic code. These changes can affect protein structure, function, stability, and interaction with other molecules, ultimately impacting cellular processes, development, and disease susceptibility.
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Helppppp pleaseee fasst What branch of mathematics' principles were the Islamic artists apparently using?
a. Calculus
C. Trigonometry
b. Quasicrystalline geometry
d. Algebra
Please select the best answer from the choices provided
Answers
Answer:
its b.
Explanation:
What is the definition of a fossil?
A. the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock
B.the body of a dead organism such as a dinosaur
C. the bones of an animal that has died and been buried in sand
D. something that is very old or ancient that has been found or studied by scientists
Answers
Answer:
A. The remains or impression of a prehistoric organism preserved in a petrified form or as a mold or cast in a rock
Explanation:
A.the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock
1) Wood has a density of 5.53g/cm3. What must the volume of 33.3 g of wood?
Answers
Answer:
6.021cm^3Explanation:
d=5.53 g/cm^3
m=33.3g
v=?
we know that,
d=m/v
or, v=m/d
or, v=33.3/5.53
•°• v=6.021cm^3
The volume of the wood is its mass divided by density. The volume of the 33.3 g wood with the density of 5.53 g/cm³ is 6.02 cm³.
What is density ?Density of a substance is the measure of its mass per unit volume. It describes how closely particles are packed. The density of a substance depends on the bond type, temperature and pressure.
If a substance is dense than water, it will sink on water. If it is less dense than water it will float on water. The ratio of the density of an object to that of water is called specific gravity.
Given that, density of wood = 5.53 g/cm³
mass = 33.3 g
volume = mass/density
= 33.3 g/ 5.53 g
= 6.02 cm³
Therefore, the volume of the wood is 6.02 cm³.
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5. The rate of diffusion of a gas depends on its
molecular mass and the temperature.
Which combination of molecular mass and
temperature gives the slowest rate of diffusion?
molecular mass
temperature
A.high
high
B.low
low
C.high
low
D.high
low
Answers
Answer:
A
Explanation:
because rate of diffusion is inversely proportional to molecular mass
The combination of high molecular mass and low temperature gives the slowest rate of diffusion.The correct option is c.
When it comes to diffusion, the rate at which a gas spreads out depends on its molecular mass and temperature.
Molecular mass refers to the weight of the gas molecules. The larger the molecules, the slower they move and the slower they diffuse. Therefore, gases with higher molecular mass diffuse more slowly than those with lower molecular mass.
Temperature also affects the rate of diffusion. At higher temperatures, gas molecules have more energy and move faster, resulting in a faster diffusion rate. On the other hand, at lower temperatures, gas molecules have less energy and move slower, leading to a slower diffusion rate.
So, when we combine high molecular mass and low temperature, we have both factors working against a fast diffusion rate. The gas molecules are heavy, which slows down their movement, and the low temperature reduces their energy and speed. As a result, this combination gives us the slowest rate of diffusion.
In summary, the combination of high molecular mass and low temperature gives the slowest rate of diffusion.The correct option is C.
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What is the mass of 2.7 x 10^18 molecules of HBr? (molar mass of HBr = 80.912 g/mol)
Answers
Answer:3.6 X 10-4 g
Explanation:
2.7 X 10^18 X (1 mole / (6.02 X 10^23) X ( 80.912 g / 1 mole) = 3.629 X 10-4 g HBr. If needed to correct Sig Figs 3.6 X 10-4 g HBr
Help me out please !!
Answers
Answer:
I would be 31/15P
Explanation:
31 over 15. because the mass number is above the atomic number.
1.write the balanced equation for
CuCl2+HNO3+AgNO3=
What is the general molecular formula for phenol?
Answers
1
1
The general molecular formula for phenol is C6H5OH. It is an aromatic organic compound with a hydroxyl group bonded to a carbon atom of a cyclic structure. The ring structure has alternate double and single bonds. The formula of phenol is C6H5OH. Benzene has the formula C6H6. It is a hexagonal ring of six carbon atoms bonded with alternate single and double bonds. Each carbon atom in benzene has a bond with a hydrogen atom. In phenol, a hydroxyl group replaces one of the hydrogen atoms.
The reaction of CuCl2, HNO3, and AgNO3 is a redox reaction. In a redox reaction, one substance loses electrons and is oxidized, while another substance gains electrons and is reduced. In this reaction, CuCl2 is oxidized to Cu2+, HNO3 is reduced to NO, and AgNO3 is reduced to Ag.
The balanced equation for the reaction is:
CuCl2 + 2HNO3 + 2AgNO3 → Cu2+ + 2NO + 2AgCl
The products of the reaction are copper(II) ions, nitrogen monoxide gas, and silver chloride precipitate.
Here are some of the properties of phenol:
Phenol is a white crystalline solid that is soluble in water.
Phenol has a strong, characteristic odor.
Phenol is a mild acid.
Phenol is toxic and can cause burns to the skin and eyes.
Phenol is used in a variety of products, including disinfectants, antiseptics, and plastics.
An organism that has two different alleles for a trait is known as?
Answers
Answer:
heterozygous
earth is attracted to. the sun by. the. force of. gravity. why. doesn't the earth fall into. the. sun
Answers
Answer:
because of the balance in centripetal and centrifugal forces.
Answer:
The earth's momentum, its centripetal and centrifugal forces, prevent it from falling into the sun.
Does warm air rise or fall?
Answers
rise and cold air
it doesn't fall cause I already fall inlove with levi
Can someone explain how it is 1?
Answers
Explanation:
You have 112 g of Fe.
The atomic mass of Fe is 56 g/mol
112g Fe/ 56g/mol = 2 mol Fe <---- you have to convert to moles of iron(iii) sulfate
From the balanced equation, you get that 2 moles of Fe react to produce 1 mole of Fe2(SO4)3
So, to convert:
2 mol Fe* (1 mol Fe2(SO4)3 / 2 mol Fe) = 1 mol Fe2(SO4)3
moles of Fe cancel and the answer is 1 mole of iron(iii) sulfate.
__________ is required to make a wave.
Answers
Answer:
The moon is required to make a wave.
The specific heat of water is 4.186. If 100.0 g of water is cooled from 75.0° to 10.0°C, how much heat is released?
a) 0 J. Heat gets absorbed in this situation
b) 27.209 J
c) 30,000 J
d) -27,209 J
Answers
To calculate the amount of heat released when cooling water, we can use the formula:
Q = m × c × ΔT
where:
Q is the heat energy released or absorbed (in Joules),
m is the mass of the water (in grams),
c is the specific heat capacity of water (in J/g°C),
ΔT is the change in temperature (in °C).
Given:
m = 100.0 g (mass of water)
c = 4.186 J/g°C (specific heat capacity of water)
ΔT = 10.0°C (change in temperature, from 75.0°C to 10.0°C)
Using the formula:
Q = 100.0 g × 4.186 J/g°C × (10.0°C - 75.0°C)
Q = 100.0 g × 4.186 J/g°C × (-65.0°C)
Q = -27187 J
The negative sign indicates that heat is released during the cooling process.
Therefore, the correct answer is:
d) -27,209 J
what is the difference between diffusion and osmoses
Answers
Answer:
Diffusion means that particles travel from a higher concentration to a lower concentration region before balance is achieved. The semi-permeable membrane is present in osmosis, so that only solvent molecules can travel freely to equalize the levels.
Let's say you asked how many moles of O2
are needed to react with 24 moles of C2H6.
Answers
Answer:
7
Explanation:
A gas takes up a volume of 25 liters, has a pressure of 2.3 atm, and a temperature of 299 K.
If I raise the temperature to 325 K and lower the pressure to 1.2 atm, what is the new volume of the gas?
Answers
The new volume of the gas is 56.6 liters when the temperature is raised to 325 K and the pressure is lowered to 1.2 atm.
PV = nRT
Where R is the ideal gas constant. Since the number of moles is constant in this problem, we can simplify the ideal gas law to:
P1V1/T1 = P2V2/T2
Where the subscripts 1 and 2 refer to the initial and final states of the gas, respectively.
We can now plug in the given values for the initial state of the gas:
P1 = 2.3 atm
V1 = 25 L
T1 = 299 K
And the given values for the final state of the gas:
P2 = 1.2 atm
T2 = 325 K
We can then solve for V2:
P1V1/T1 = P2V2/T2
(2.3 atm)(25 L)/(299 K) = (1.2 atm)V2/(325 K)
V2 = (2.3 atm)(25 L)(325 K)/(1.2 atm)(299 K)
V2 = 56.6 L (rounded to three significant figures)
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Chemistry questions I NEED help with
Answers
state the electronic configuration of Si and justify its placement in period 3
Answers
Answer:
The second period starts with Lithium and Beryllium which have 3 and 4 electrons and hence the last electrons enter the level 2s and they have an electronic configuration of 1s22s1 and 1s22s2
ΚΕ:
m.22
2
What is the kinetic energy of 10kg dog running with a velocity of 12m/s?
Answers
Answer:
The answer is
720 JoulesExplanation:
The kinetic energy of a body can be found by using the formula
\(K.E = \frac{1}{2} {mv}^{2} \)where
m is the mass
v is the velocity / speed
From the question
mass = 10 kg
velocity = 12 m/s
Substitute the values into the above formula and solve
That's
\(KE = \frac{1}{2} \times 10 \times {12}^{2} \\ = 5 \times 144 \: \: \)We have the final answer as
720 JoulesHope this helps you
i need help for school lol
White, small cubes, grainy, pours easily is a description of which substance?
OA) sugar
B) flour
C) baking powder
OD) salt
Answers
Answer:
sugar
Explanation:
they are white, it pours easily and you can hold them up as grains
which 2 characteristics must and object have in order to be considered matter?
Answers
Answer:.
Explanation: Matter must have Mass and Volume to be considered matter!
g For the following reaction, 20.9 grams of iron are allowed to react with 9.19 grams of oxygen gas . iron(s) oxygen(g) iron(II) oxide(s) What is the maximum mass of iron(II) oxide that can be formed
Answers
Answer:
26.87g
Explanation:
We'll begin by writing the balanced equation for the reaction. This is illustrated below:
2Fe + O2 —> 2FeO
Next, we shall determine the masses of Fe and O2 that reacted and the mass of FeO produced from the balanced equation.
This is illustrated below:
Molar mass of Fe =56 g/mol
Mass of Fe from the balanced equation = 2 x 56 = 112 g
Molar mass of O2 = 16x2 = 32 g/mol
Mass of O2 from the balanced equation = 1 x 32 = 32 g
Molar mass of FeO = 56 + 16 =72 g/mol
Mass of FeO from the balanced equation = 2 x 72 = 144 g
From the balanced equation above,
112 g of Fe reacted with 32 g of O2 to produce 144 g of FeO.
Next, we shall determine the limiting reactant.
This is illustrated below:
From the balanced equation above,
112 g of Fe reacted with 32 g of O2.
Therefore, 20.9 g of Fe will react with = (20.9 x 32)/112 = 5.97 g of O2.
From the calculations made above, we can see that only 5.97 g out of 9.19 g of O2 given were required to react completely with 20.9 g of Fe.
Therefore, Fe is the limiting reactant and O2 is the excess reactant.
Finally, we shall determine the mass of FeO produced from the reaction.
In this case, the limiting reactant will be used, as it will give the maximum yield of the reaction since all of it is used up in the reaction.
The limiting reactant is Fe and the maximum mass of FeO produced can be obtained as follow:
From the balanced equation above,
112 g of Fe reacted to produce 144 g of FeO.
Therefore, 20.9 g of Fe will react to produce = (20.9 x 144)/112 = 26.87g of FeO.
Therefore, the maximum mass of iron(II) oxide, FeO produced is 26.87g.