Answers
The rates of reaction for the trial 1 is 8.22 x 10⁻² M⁻² s⁻¹ and 1.10 M⁻² s⁻¹ for traila 2 and 3
How to determine reaction rate?To find the reaction rate with respect to U and S, keep the concentration of W constant and vary the concentrations of U and S while measuring the rate.
Assuming the concentration of W in all three trials is constant, choose trial 1 as the reference trial and calculate the rate constant (k) for the reaction with respect to U and S.
For trial 1:
[W] = 0.13 M
Rate = 4.72 x 10⁻⁴ M/s
For trial 2:
[W] = 0.13 M
Rate = 1.18 x 10⁻² M/s
From the equation rate = k[U][S], set up the following ratio of rates:
Rate2/Rate1 = (k[U]2[S]2)/(k[U]1[S]1)
Simplifying:
k = (Rate2/Rate1) x (1/[U]2) x (1/[S]2) x ([U]1) x ([S]1)
Substituting the values from trials 1 and 2:
k = (1.18 x 10⁻² M/s) / (4.72 x 10⁻⁴ M/s) x (1/0.65 M) x (1/1 M) x (0.13 M) x (1 M)
k = 8.22 x 10⁻²M⁻² s⁻¹
Similarly, for trial 3:
[W] = 0.13 M
Rate = 2.95 x 10⁻¹ M/s
Using trial 1 as the reference trial again, calculate the rate constant (k) for the reaction with respect to U and S:
k = (Rate3/Rate1) x (1/[U]3) x (1/[S]3) x ([U]1) x ([S]1)
k = (2.95 x 10⁻¹ M/s) / (4.72 x 10⁻⁴ M/s) x (1/3.25 M) x (1/1 M) x (0.13 M) x (1 M)
k = 1.10 M⁻² s⁻¹
Therefore, the reaction rate with respect to U and S is given by the equation:
rate = k[U][S]
where k = 8.22 x 10⁻² M⁻² s⁻¹ and 1.10 M⁻² s⁻¹ for trials 2 and 3, respectively.
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Related Questions
The volume of a fixed amount of gas is doubled, and the absolute temperature is doubled. According to the ideal gas law, how has the pressure of the gas changed? A. It has stayed the same. B. It has decreased to one-half its original value. C. It has increased to four times its original value. D. It has increased to two times its original value.
Answers
Answer:
Option A. It has stayed the same.
Explanation:
To answer the question given above, we assumed:
Initial volume (V₁) = V
Initial temperature (T₁) = T
Initial pressure (P₁) = P
From the question given above, the following data were:
Final volume (V₂) = 2V
Final temperature (T₂) = 2T
Final pressure (P₂) =?
The final pressure of the gas can be obtained as follow:
P₁V₁/T₁ = P₂V₂/T₂
PV/T = P₂ × 2V / 2T
Cross multiply
P₂ × 2V × T = PV × 2T
Divide both side by 2V × T
P₂ = PV × 2T / 2V × T
P₂ = P
Thus, the final pressure is the same as the initial pressure.
Option A gives the correct answer to the question.
i cant help you with math and science homework or project just email at shahlaalgow g mail com
Answers
Answer:
thanks
Explanation:
characteristics. of. rusting
Answers
Answer: metal turn orange and weaker as it gets oxidised
Explanation:
Oxygen has six electrons in its outer shell. How many electrons do you predict sulfur, selenium, tellurium and polonium will have in their outer shell? Why?
Answers
The number of electrons for sulfur, selenium, tellurium, and polonium will have in their outer shell is 6,6,6,6 respectively.
The electronic configuration of an element depicts the number of electrons in the outermost shell.Oxygen has six electrons which are for the configuration 1s22s22p4Similarly sulfur has the electronic configuration as [Ne]3s23p4So the number of outer shell electrons is 6Similarly, selenium has 34 atomic number, and electrons is 2,8,18,6 so the outer shell electrons is 6The number of valence electrons of tellurium is 6 as the electronic configuration is 2,8,18,18,6The number of valence electrons is 6The electronic configuration of polonium is 2,8,18,32,18,6So the outer shell electrons is 6To learn more about the outermost shell visit:
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Copper is a metal that can behave like a magnet because
A. It has many magnetic domains oriented randomly
B. It has a very large magnetic domain pointing in a given direction
C. It is a conductor and can support electric current.
D. It has two large magnetic domains that always cancel each other out.
Answers
Copper is a metal that can behave like a magnet because It is a conductor and can support electric current.
What is a definition of metal?
Strong electrical and thermal conductivity, malleability, ductility, and high light reflection are all characteristics of metals, which are one type of materials.
Copper is not magnetic in and of itself. However, when a magnet comes close to copper (and some other metals), the magnetic field causes the copper's surface electrons to reorganize and start revolving. They generate resistance by rotating in a circular motion perpendicular to the magnetic field.
Copper has the highest conductivity among non-precious metals, which means it can carry more electrical current than other non-precious metals.
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Which statement describes both homogeneous mixtures and heterogeneous mixtures?
Answers
Answer:
both are the types of mixture and both are impure substances that donot have fixed composition and the composition of constituents is not uniform
Answer:
Their components van be separated by physical processes
Explanation:
Out of the answers im given, it makes the most sense. I would double check before submitting though
Order the structures from smallest to largest. Chloroplast Leaf Glucose molecule Cell Water molecule
Answers
Answer:
water molecule...glucose..chloroplast...cell...leaf
The structure of the order from smallest to the largest should be shown below:
The order of the series are as follows:
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A flashbulb of volume 2.6L contains O₂ gas at a pressure of 2.3atm and a temperature of 26°C. How
many moles of oxygen gas does the flashbulb contain? don't forget to convert °C to K *
Answers
Answer:
See below
Explanation:
Ideal gas law PV = n R T
P = 2.3 atm
V = 2.6 L
n = ?
R = .08205 L atm / (mole K)
T = 26 + 273.15 K
Plugging in the numbers finds n = .244 moles
What type of intermolecular force will for between H2O AND CH3OH? Draw and label a picture of this bond. Explain in words how this bond forms.
Answers
Hydrogen bonding, which is unquestionably what we have, will occur from the intermolecular force between the molecules of H2O and CH3OH. Atoms trade or exchange valence electrons to create bonds.
How come we create bonds?Trust and self-esteem are developed in children and adolescents through strong emotional ties. After that, they can leave the family and establish wholesome friendships and other types of social ties. Healthy relationships consequently lower a child's chances of emotional discomfort or antisocial behaviour.
What exactly is a bonds, for example?The government of a country issues government bonds, a sort of fixed-interest bond. These bonds are thought of as low-risk investments. Examples of different kinds of government bonds include T - bills, Municipality Bond, Zero-Coupon Bonds, and others.
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Perform each conversion from one metric unit of volume to another.
8.23mL=
0.0647cL=
Answers
Answer:
0.00823 L and 0.000647 L
Explanation:
Use standard metric conversions
1 cL = 0.01 Liters
1 mL = 0.001 Liters
Which of the following animals are an example of coevolution? *
Answers
Acacia ant and acacias animals are an example of coevolution
Coevolution is the reciprocal evolutionary change in a set of interacting population over time resulting from the interaction between those population and an example of coevolution that is not characteristics of an arm race but one which provides a mutual benefit to both a plant species and insect is that of the acacia ant and acacia plant and many cases of coevolution can be found between plants and insects
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A functional group introduces heteroatoms into a carbon chain to increaseQuestion 5 options: reactivity. molecular mass. polarity. chain length.
Answers
The question asks us to specify the effect of introducing a functional group into a carbon chain.
A simple carbon chain, with only carbons and hydrogens, doesn't show great reactivity because the carbon-to-carbon and carbon-to-hydrogen bonds are strong and the charge of the electrons from theses bonds is spread relatively even over the bonded atoms. Therefore, chains that contain only these two atoms, specially those with only single bonds, are not very reactive.
On the other side, if one or more weaker bonds are introduced into the chain, with the charge of electrons unequally spread over the bond, the reactivity of the molecule tends to increase. When an heteroatom is introduced, for example, the electronegativity difference between atoms will make the electrons more drawn to one side of the bond than the other.
For that reason, we can say that a functional group introduces heteroatoms into a carbon chain to increase the reactivity of this chain (option A).
Which resulted from the study of chemistry?
Answers
Answer:
I'm confused I think you're suppose to put a picture if you want someone to answer your question just saying.
Explanation:
Answer:
The understanding of the earth, air, fire, and water as the basic components of matter.
Explanation:
Select the best answer for the question. 1. Mei is seated doing leg extensions and going through the full path of motion. What type of exercise is Mei doing? O A. Free-weight exercise B. Resistance exercise C. Machine exercise O D. Cable exercise
Answers
The correct answer is "C.
The type of exercise that Mei is doing is the "Machine exercise."
Machine exercise refers to a physical fitness training technique that allows the muscles to develop and strength through the use of machines that use hydraulic cylinders, weights, and cables to produce resistance. The machine exercises are generally performed in a seated position or lying down, and most often use a series of cables and weights that are adjusted to the user's specific body weight and desired level of resistance.Machine exercises can effectively target specific muscle groups and help strengthen them.Machine exercises can help you increase muscular endurance and improve your overall fitness level.Machine exercises are often safer and easier to perform than free-weight exercises.Machine exercises are generally easier on your joints and can help reduce the risk of injury.Machine exercises are also helpful for people with limited mobility or those recovering from an injury or surgery.For such more questions on Machine exercise
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Oxidation Unit Test
Use the galvanic cell reaction to answer the question.
2Cr(s) + 3Cu2+(aq) → 2Cr3+ (aq) + 3Cu(s)
Which half reaction occurs at the cathode?
(1 point)
Answers
The reduction half equation of the galvanic cell is is; 3Cu2+(aq) + 3e ------> 3Cu(s).
A galvanic cell is a cell that produces chemical energy by a spontaneous chemical reaction. The equation of the reaction is; 2Cr(s) + 3Cu2+(aq) → 2Cr3+ (aq) + 3Cu(s). We can see that chromium was oxidized and copper was reduced.
Since reduction occurs at the cathode, it follows that the reduction half equation is; 3Cu2+(aq) + 3e ------> 3Cu(s).
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How many ounces are in 23.0 tons
Answers
Question 14 of 32
What is the equilibrium expression for the reaction below?
C(s) + O₂(g)CO₂(g)
Ο Α.
OB.
O C.
OD.
[0₂][C]
[CO₂]
[CO₂]
[0₂]
[CO₂]
[0₂][C]
1
![Question 14 of 32What is the equilibrium expression for the reaction below?C(s) + O(g)CO(g) .OB.O C.OD.[0][C][CO][CO][0][CO][0][C]1](https://i5t5.c14.e2-1.dev/h-images-qa/contents/attachments/JRfw3CkVo09BlAGCz2tamvua1Qeay8Jj.png)
Answers
The equilibrium expression for the reaction; C(s) + O₂(g) ------->CO₂(g) is [CO2]/[C] [O2] option C.
What is the equilibrium expression?The equilibrium expression shows how much of the reactants are converted into products. If the equilibrium constant is large and positive, most of the reactants have been converted into products.
Thus, the equilibrium expression for the reaction; C(s) + O₂(g) ------->CO₂(g) is [CO2]/[C] [O2] option C.
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b) Ammonia and sulfuric acid react according to the equation given below. How many millilitres of 0.110 M sulfuric acid are required to neutralize exactly 25.0 mL of 0.0840 M NH3 solution? 2 NH3(aq) + H₂SO4 (aq) → (NH4)2SO4(aq)
Answers
The amount of 0.110 M sulfuric acid are required to neutralize exactly 25.0 mL of 0.0840 M NH3 solution is 9.55mL.
A Neutralization Reaction: What Is It?A neutralisation reaction is a chemical process in which an acid and a base combine to produce salt and water as the end products. H+ ions and OH- ions combine to generate water during a neutralisation process.
2 NH3(aq) + H₂SO4 (aq) → (NH4)2SO4(aq)
moles of NH3 = (25ml x 1L/1000mL) x 0.084M
=> 2.1x 10^(-3) moles
The mole ratio of NH3 to H₂SO4 in the given reaction
=> moles of H₂SO4 = 2.1 x 10^(-3) moles of NH3 x 1 molesH₂SO4/2 moles
NH3
=> 1.05 x 10^(-3) moles
Volume = moles/molarity
=> 1.05 10^(-3) moles/0.110M
=> 9.55 x 10^(-3) L = 9.55mL
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Can someone please help me with EARTH SCIENCE, in New York State?! I need you to label each box with a number. it’s called “rock strata correlation practice”. Number 1 would be the oldest when u label it and it’d be at the bottom.
Answers
In the rock strata correlation practice for New York State, you'll need to label each box with a number, with number 1 representing the oldest layer, located at the bottom.
To perform the correlation, start by examining the different rock layers across different locations or outcrops in New York State. Compare the characteristics of these layers, such as their composition, fossil content, and sedimentary structures. Look for similarities and patterns between the layers to determine their correlation. By identifying key markers, such as unique fossils or distinctive sedimentary structures, you can establish relationships between the rock layers at different locations. Remember to consider the principle of superposition, which states that younger rocks are typically found above older rocks unless they have been disturbed by geological processes. Applying these principles will help you accurately correlate the rock strata in New York State.For such more question on rock strata
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HỌ5,42
Homework Answered Due Today, 11:59 PM
.
A 5.60E1 g sample of water at 9.910E1 °C is placed in a constant pressure calorimeter. Then, 2.40E1 g of zinc metal at 2.10E1 °C is
added to the water and the temperature drops to 9.70E1 °C. What is the specific heat capacity of the zinc metal measured in this
experiment?
Answers
The specific heat capacity of the zinc metal, given that 2.40×10¹ g of zinc metal at 2.10×10¹ °C is added to the water is 0.27 J/gºC
How do i determine the specific heat capacity of the zinc?First, we shall obtain the heat absorbed by the water when the zinc metal was added. This is shown below:
Mass of water (M) = 5.60×10¹ gInitial temperature (T₁) = 9.910×10¹ °CFinal temperature (T₂) = 9.70×10¹ °CChange in temperature (ΔT) = 9.70×10¹ - 9.910×10¹ = -2.1 °CSpecific heat capacity of water (C) = 4.184 J/gºC Heat absorbed by water (Q) =?Q = MCΔT
= 5.60×10¹ × 4.184 × -2.1
= -492.0384 J
Now, we shall determine the specific heat capacity of the zinc metal. Details below:
Heat absorbed by water (Q) = -492.0384 JHeat released by metal (Q) = 492.0384 JMass of zinc metal (M) = 2.40×10¹ gInitial temperature (T₁) = 2.10×10¹ °CFinal temperature (T₂) = 9.70×10¹ °CChange in temperature (ΔT) = 9.70×10¹ - 2.10×10¹ = 76 °CSpecific heat capacity (C) = ?Q = MCΔT
492.0384 = 2.40×10¹ × C × 76
492.0384 = 1824 × C
Divide both sides by 1824
C = 492.0384 / 1824
= 0.27 J/gºC
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Consider the reaction
2NO(g) + O2(g) = 2NO2(g)
Suppose that at a particular moment during the reaction nitric oxide
(NO) is reacting at the rate of 0.066 M/s. (a) At what rate is NO2
being formed? (b) At what rate is molecular oxygen reacting?
Answers
Answer:
(a) Rate of formation of NO2 is also 0.066M/s
(b) Rate of reaction of O2 gas is 0.033M/s
Explanation:
(a) in one second, according to the equation,
2 moles of NO combines with 2moles of NO2.
Therefore 0.066M NO will still consume 0.066mole NO2.
(b) According to the equation,
2 moles NO consumes 1 mole O2, 0.0666M will consume 0.0333 mole O2
Which phrase describes a compound that consist of two elements
Answers
Carbon dioxide, nitrous oxide, and methane are all compounds that consist of two elements
NaOH
Element
# of Atoms
Total
NaOH
Element
#of atoms
Total:
Answers
Answer:
Na has 1 atom
O has 1 atom
H has 1 atom
therefore,
total atoms = 3
Suppose a solution has a density of 1.87 g/mL. If a sample has a mass of 17.5 g the volume of the sample in mL is what?
Answers
We can use the formula:
Density = Mass/Volume
Rearranging the formula gives:
Volume = Mass/Density
Substituting the given values gives:
Volume = 17.5 g / 1.87 g/mL = 9.36 mL.
How do we measure forces?
Answers
Answer:
That depends.
Explanation:
We can measure force as mass*accelerations for physics
Identify the following for an atom with 8 protons, 8 electrons, and 7 neutrons.
a. Atomic number:
b. Mass number:
c. Nuclear Notation:
d. Hyphen Notation:
please help
Answers
Answer:
i thinks its a. but iam not sure
how many degrees of unsaturation are present in a molecule with the molecular formula c5h8brno? (1 pts)
Answers
The degree of unsaturation of the compound is 3.
What is the degree of unsaturation?When we talk about the degree of unsaturation, we are referring to the number of the hydrogen atoms that could not be found in the system. We know that when a saturated compound is formed, there is the loss of some of the hydrogen atoms from the molecular formula.
The term unsaturated in itself means that the compound do not have the exact number of the hydrogen atoms or the hydrogen atom compliment that it should normally have.
This would happen as the multiple bonds are formed then a given number of the hydrogen atoms would be lost from the system so that the multiple bond can now be formed in the compound that we are looking at. The more the number of the multiple bonds, the more the degree of unsaturation of the molecule.
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Engineers find a new metal that is stronger than steel.. (so on)
Answer is : D "Collaborate with other engineers in the design of a plane made from this metal".
Answers
Answer:
Explanation:
same thing as normal plane. just replace normal metal with this new sick metal :cool:
also make sure it weighs a good amount and won't fall from weight... im confused was this already answered???
Answer:
Collaborate with other engineers in the design of a plane made from this metal
Explanation:
<3
For many purposes we can treat propane (CH) as an ideal gas at temperatures above its boiling point of - 42°C. Suppose the temperature of a sample of propane gas is lowered from 25.0°C to - 22.0 °C, and at the same time the pressure is changed. If the initial pressure was 0.58 kPa and the volume decreased by 40.0%, what is the final pressure?
Answers
Answer: The final pressure is 0.81 kPa
Explanation:
The combined gas equation is,
\(\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}\)
where,
\(P_1\) = initial pressure of gas = 0.58 kPa
\(P_2\) = final pressure of gas = ?
\(V_1\) = initial volume of gas = v
\(V_2\) = final volume of gas = \(v-\frac{40}{100}\times v=0.6v\)
\(T_1\) = initial temperature of gas = \(25^0C=(25+273)K=298K\)
\(T_2\) = final temperature of gas = \(-22^0C=(-22+273)K=251K\)
Now put all the given values in the above equation, we get:
\(\frac{0.58\times v}{298}=\frac{P_2\times 0.6v}{251}\)
\(P_2=0.81kPa\)
The final pressure is 0.81 kPa
a 45 gram marble is dropped into a graduated cylinder with 30ml of water. The water level increases to 45.0 ml. What is the density of the marble?
Answers
Answer:
3 g/mLExplanation:
The density of a substance can be found by using the formula
\(density = \frac{mass}{volume}\\\)
From the question we have
volume = final volume of water - initial volume of water
volume = 45 - 30 = 15 ml
We have
\(density = \frac{45}{15} = 3 \\ \)
We have the final answer as
3 g/mLHope this helps you