Based on the calculations, the pressure of this gas sample at 27°C is equal to 0.17 atm.
How to determine the final pressure.In order to calculate the final pressure of an ideal gas at constant volume, we would apply Gay Lussac's law.
Mathematically, Gay Lussac's law is given by this formula;
[tex]P\;\alpha \;T\\\\P=kT[/tex]
Where:
P is the pressure.T is the temperature.k is the constant of proportionality.Substituting the given parameters into the formula, we have;
[tex]\frac{P_1}{T_1} =\frac{P_2}{T_2} \\\\\frac{0.80}{127} =\frac{P_2}{27} \\\\0.0063 =\frac{P_2}{27}\\\\P_2 = 0.0063 \times 27[/tex]
Final pressure = 0.17 atm.
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9-5 skills practice solving quadratic equations by completing the square
An example of 9-5 practice question on quadratic equations by completing the square is 5x2–2x−9=0.
What are quadratic equation?This is known to be a type of algebraic expression that is based on the second degree in x. The quadratic equation often exist in a standard form such as ax2 + bx + c = 0.
To solve for 5x2–2x−9=0
Then you have to rearrange the equation into:
x2−(2/5)x−9/5=0
= x2−(2/5)x=9/5
= (x−(2/10))2−(2/5)2=9/5(here b = 2/5)
= (x−(2/10))2=46/25
Then you take the square root on both sides
= (x−(2/10))=±1.356
Therefore x=1.556 or say −1.156.
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A food worker has prepared a large pot of rice that must be cooled
The code for the genetic traits of an organism is directly determined by the
One of the purposes of research is to address the pressing issues in the society. As a student who is a keen observer and is aware of the local, national or international affairs, list down three crucial concerns and propose a solution for each. (5 points each) For example: Problern 1 (Local): Diesel price hike Proposed Solution:Used Cooking Oil as a Substitute for Diesel Problem 1: Local Issue 2: National Issue 3. International Issue Proposed Solution
The crucial concerns for Diesel price hike are:
Do leads to an increase in the prices of goods and services.Lowers the purchasing power of money. Has a negative impact on consumers' welfare.The Proposed Solution are:
Create an alternative kind of fuel.Find an alternative supplier for the diesel at cheaper price.Why is diesel very expensive?The movement to a form of fuel that is less polluting and one that has a reduces sulfur diesel fuels in the United States is known to have influence the increase in the price of diesel fuel production and also its distribution costs.
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Each of the following statements is arguably true of thermometers. Which of them is most helpful to keep in mind if you are conducting an experiment to measure the specific heat of a material?
The statement that is true of thermometers is; The temperature reported by a thermometer is never precisely the same as its surroundings.
What is the function of thermometer in an experiment?In the experiment to determine the specific heat of a material, the theory will be one which explains that when a heat interchange takes place between two bodies that were having different temperatures at the beginning, the quantity of heat the warmer body looses is equal to that gained by the cooler body to reach the equilibrium temperature. This is true only if no heat is lost or gained from the surrounding.
Now, If heat is gained or lost from the surrounding environment, the temperature readings by the thermometer will be incorrect. The experimenter should therefore have in mind that for accurate results, the temperature recorded by the thermometer is similar to that of the surrounding at the beginning of the experiment and if it differs then note that heat is either gained or lost to the environment.
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Which additional fact would prove that quadrilateral wxyz is a parallelogram?
The quadrilateral wxyz has four sides
The additional fact that would prove that quadrilateral wxyz is a parallelogram is that XY = WZ
How to prove that wxyz is a parallelogram?For a shape to be a parallelogram, the folllowing must be true
The shape must be a quadilateralThe opposite sides of the shape must be congruentThe opposite sides of the shape must be parallelHence, the additional fact that would prove that quadrilateral wxyz is a parallelogram is that XY = WZ
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What do we have to do to the conversion factor if we are dealing with units that measure area?
You would cube it so if theres a cube it answer than use that
The conversion factor to the units of the measure of area is squared. Thus, option D is correct.
What is a conversion factor?A conversion factor is given as the number that enables the changing of one set of units to another with the help of mathematical operations such as division or multiplication.
The area can be given as the region that is found bounded within the shape. The unit of area has been measured in square units. Thereby the conversion factor dealing with the area made to be squared. Thus, option D is correct.
The complete question is attached in the image.
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8-6 skills practice solving rational equations and inequalities
There are different kinds of rational equations and inequalities. An example is:
In order to simplify a rational number or rational expression, ----- the numerator and ------- and divide both of them by their -------What are rational equations?A rational equation is known to be a type of equation that has at least one fraction that the numerator and denominator are said to be polynomials.
The answer is In order to simplify a rational number or rational expression, Factor the numerator and denominator and divide both of them by their greatest common factor.
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Choose the correct percentage to complete the sentence. more than of organizations in the united states report that they are unprepared for even basic security attacks.
More than 70% of organizations in the United States report that they are unprepared for even basic security attacks.
What is a security attack?A security attack is a type of computer attack aimed at stealing, damaging and/or exposing digital information.
A security attack may be aimed, for example, to steal passwords in a given bank or financial organization.
The number of security attacks has increased in a sudden manner in the last years around the world.
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Answer:
70%
Explanation:
Ed22
An executor should be willing and reliable because brainly
The reason why the executor should be reliable is because; such a person is dealing with a very delicate thing that loss could be devastating.
What is the role of an executor?An executor is simply a person named in a will whose job it is to sort out the estate of the person who has died. The estate includes everything owned such as money, property and possessions.
Before appointing someone as an executor, it is very vital to carry out a background checks to ensure that the person has not been found guilty of fraud, theft or unethical practices in the past. This is because the person must have integrity to carry out this role.
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Answer:
need to be trusted to carry out will instruction
Explanation:
How many different nth roots does a nonzero complex number have?
The Complex nth Roots Theorem with any nonzero complex number has exactly n ∈ N distinct nth roots.
What is a non-zero complex number?This is the quantity which does not equal zero is said to be nonzero. A real nonzero number must be either positive or negative, and a complex nonzero number can have either real or imaginary part nonzero.
The roots lie on a circle of radius centered at the origin and spaced out evenly by angles of 2π/n.
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according to carl jung, which of the following best served the goal of self-realization?
At which event must special care be taken when preparing food
Answer:
occasions
Explanation:
During occasions such as Easter, Christmas etc when preparing a food take risk and measures make it delicious
drag the labels to identify the events in the generation of an action potential in order and correctly name the refractory periods.
An absolute refractory period occurs during depolarization while the relative refractory period takes place during repolarization.
What is an action potential?An action potential refers to a sudden, quick change in electrical potential (voltage) during the transmission of an impulse (signal) to a receptor, across a cellular membrane.
The order of events in the generation of an action potential include the following:
At -60 mV, graded depolarization transmits an area of excitable membrane to threshold.At +30 mV, voltage-gated sodium channels are opened for sodium ions to move into the cell. As repolarization begins, sodium channels close, voltage-gated potassium channels are opened for potassium ions to move out of the cell. Finally, both sodium and potassium channels return to their normal states as the potassium channels is closed.In conclusion, an absolute refractory period occurs during depolarization while the relative refractory period takes place during repolarization.
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Course 1 chapter 10 volume and surface area answer key
An example of Course 1 chapter 10 volume and surface area question is find the volume of the figure (image attached.) The volume is option C.
What is the surface area?Surface area is a term that connote the total area which the surface of the object is said to occupy. It is often divided into a sum of base area(s) and also lateral surface area.
To solve for the volume,
v = ewh
v 7.2 (3.2) (5.2)
Therefore, v = 125.528m³
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Bill was injured on the job and hospitalized for several months
Answer:
WHAT HAPPENED TO BILL AFTER THAT???
In the electrolysis of a molten mixture of rbcl and kbr. identify the product that forms at the negative electrode and at the positive electrode.
The product that are formed at the negatively charged electrode (cathode) and at the positively charged electrode (anode)
Strontium at cathode.Chlorine at anode.What is electrolysis?Electrolysis can be defined as the chemical decomposition of a chemical compound or substance into their respective elements by passing direct electric current through them in a solution (liquid) containing ions.
In the electrolysis of a molten mixture of rubidium chloride (RbCl) and Potassium bromide (KBr), the product that are formed at the negatively charged electrode (cathode) and at the positively charged electrode (anode)
Strontium at cathode.Chlorine at anode.Read more on ions here: https://brainly.com/question/11638999
Two identical regular hexagons are joined together
Answer:
The answer is x=120 °
Explanation:
The principal square root of any nonnegative real number is always nonnegative.
Mark wants to determine the height x of a nearby tree
The height of the tree that can be determined by Mark will be 27.6 feet.
How to calculate height?From the complete question, Mark wants to determine the height x of a nearby tree as he stands 47 feet from the base of the tree and the measure of the angle of elevation is 36°.
The height of the tree will be:
= 47 × sin 36°
= 47 × 0.5878
= 27.6
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6-7 skills practice solving radical equations and inequalities
There are different types of math problems. An example of radical equations and inequalities practice question is [tex]\sqrt{x}[/tex] = 5
What is a radical inequality?The term radical inequality is known to be a form of an inequality that maintains a variable expression that is present within it.
For the above question, find the [tex]\sqrt{x}[/tex] = 5
The next step is to square both side:
When you square both side, it will be
x = 25.
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12.3 geometric series evaluate homework and practice
The geometric series would have a uniform common ratio
The recursive definition of the geometric sequence is [tex]a_n = 4a_{n-1}[/tex] where a1 = 128
How to determine the geometric series?Assume the geometric sequence is given as:
128,32,8,2
And the question requires the recursive definition of the geometric series
Start by calculating the common ratio (r)
[tex]r = \frac{a_{n}}{a_{n-1}}[/tex]
Substitute 2 for n
[tex]r = \frac{a_2}{a_1}[/tex]
Substitute known values
[tex]r = \frac{128}{32}[/tex]
Evaluate the quotient
[tex]r = 4[/tex]
Substitute 4 for r in [tex]r = \frac{a_{n}}{a_{n-1}}[/tex]
[tex]4 = \frac{a_{n}}{a_{n-1}}[/tex]
Cross multiply
[tex]a_n = 4a_{n-1}[/tex]
Hence, the recursive definition of the geometric series is [tex]a_n = 4a_{n-1}[/tex] where a1 = 128
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Ecoskate makes skateboards from recycled plastic. for a recent job lot of 100 skateboards, the company incurred direct materials costs of $600 and direct labor costs of $200. factory overhead applied to this job is $900. required: 1. what is the total manufacturing cost of this job lot? 2. what is the cost per skateboard?
Answer:
32$ per skateboard for this question
When reacting na with cl2, we calculated that the theoretical yield should be 13
Answer:
96.15
Explanation:
when reacting with Na with Cl2, we calculated that the theoretical yield should be 13.0 grams. our actual yield was 12.5 grams. what is the percent yield? 96.15
A polygon with all equal sides and equal angles is brainly
Answer:
It's a regular polygon
Explanation:
A polygon having equal sides and equal angles is a regular polygon. A regular polygon has three parts: Sides.
The product of 2 positive integers is 78. The greater
integer is 1 more than twice the lesser integer. What is
the greater integer?
Answer:
it's ez add it and it should give u the question
Explanation:
yea add it and u will get it
When the 0.10 m solution of hclo2 is allowed to come to equilibrium, what percent of the acid molecules are ionized?
If 0.10 m solution of hclo2 is allowed to come to equilibrium, the percent of the acid molecules that is ionized is 29%
We have
HClO2 = 0.1 mole = 0.012
HClO + H2O ⇄ ClO₂⁻ + H₂O
Ka = 0.1α x 0.1α / 0.1(1-α)
= 0.1α²/1-α = 0.12
We have to form a quadratic equation from the above
0.1α² = 0.012 - 0.12α
We write the equation to be
0.1α² + 0.012 - 0.12α = 0
To solve the equation above, the quadratic formula calculator was used.
[tex]\frac{-b+-\sqrt{b^2-4ac} }{2}[/tex]
alpha = 0.29
This is 29 percent. Therefore the percentage of ionization is 29%.
What is ionization?This is the process through which neutral ions are chraged to become electrically charged.
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A female giraffe has 62 chromosomes in each of her skin cells how many chromosomes will be in the skin cells of her offspring
The number of chromosomes that will be in the skin cells of each of her offspring is; 62
What is the number of chromosomes in the offspring?
Male and female animals differ in the number of se x chromosomes they have. A male animal carries one X chromosome which is received from his mother as well as one Y chromosome which is received from his father. However, a female animal carries two copies of the X chromosome which is one from each parent.
Now, we are told that the female giraffe has 62 chromosomes in each skin cell and as such it means that the offspring will also have 62 chromosomes in each skin cell.
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The volume of a cylinder is 400???? cubic cm and its height is 4 cm.what is the radius?
Answer: 5.64 cm
Explanation:
Volume of a cylinder = π * r^2 * h →
400 = π * r^2 * 4 →
r = 5.64 cm :)
It is the amount of fat cells compared with lean cells in the body mass
Answer:
Lean Body Mass
Explanation:
is calculated as the difference between total body weight and body fat weight