From the calcuation, the concentration of the copper II ion is 0.98 M.
What is an electrochemical cell?An electrochemical cell is one in which current is produced by means of a chemical reaction. In this cell, the cell reaction is;
Cd(s) + Cu^2+(aq) ----> Cd^2+(aq) + Cu(s)
E°cell = 0.34 V - (-0.40V) = 0.74 V
Using the Nernst equation;
0.775= 0.74 - 0.0592/2 log(6.5 × 10-2)/[Cu^2+]
0.775 - 0.74 = - 0.0592/2 log(6.5 × 10-2)/[Cu^2+]
0.035 = -0.0296 log(6.5 × 10-2)/[Cu^2+]
0.035 /-0.0296 = log(6.5 × 10-2)/[Cu^2+]
-1.18 = log(6.5 × 10-2)/[Cu^2+]
Antilog (-1.18) = (6.5 × 10-2)/[Cu^2+]
0.066= (6.5 × 10-2)/[Cu^2+]
[Cu^2+] = (6.5 × 10-2)/0.066
[Cu^2+] =0.98 M
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A company intends to market a new product and it estimates that there is a 20% chance that it will be first in the market
and this will give 2 million dollar revenue in its first year. However, if it is not the first in the market it will only be .5 million.
What is the EMV?
The EMV - Ending Market Value is given as:
$2,400,000.
The EMV is given as:
BMV x (i + r); Where
BMV is the Beginning Market Value; and
r is the interest rateor percentage given.
Hence the EMV = 2,000,000 x ( 1 + 20%)
= 2,000,000 x 1.2
= $ 2, 400,000.
It is to be noted that the BMV is the Beginning Market Value which is the value of an investment at the start of the business period.
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An iron–constantan thermocouple is to be used to measure temperatures between 0 and 400°C. What will be the non-linearity error as a percentage of the full-scale reading at 100°C if a linear relationship is assumed between e.m.f. and temperature? e.m.f. at 100°C = 5.268 mV, e.m.f. at 400°C = 21.846 mV
Answer:
-0.89%
Explanation:
Assuming a proportional relationship between EMF and Celsius temperature, the measured value of EMF at 100 °C will be interpreted as a temperature of ...
T/5.268 = 400/21.846
T = 5.268(400/21.846) ≈ 96.457 . . . . °C
The error as a fraction of full scale is ...
(96.457 -100)/400 × 100% ≈ -0.886%
The error at 100 °C is about -0.89% of full scale.
What should you do when operating in conditions of reduced visibility.
Answer:
You shold wear Gogles
Explanation:
It is harder to see with no gogles
When operating in low-visibility situations, it is critical to take necessary precautions to preserve safety and retain situational awareness. When operating in low-visibility situations, it is critical to take necessary precautions to preserve safety and retain situational awareness.
Slow down: Reduce your speed to compensate for decreased vision. This provides you with additional time to respond to unanticipated obstructions or threats. Increase your following distance by leaving a bigger gap between your car and the vehicle ahead of you. This acts as a buffer zone and allows for more stopping distance.
Turn on your headlights and fog lights, even during the day, to improve visibility for yourself and other vehicles. Use fog lights if your car has them, as they are meant to penetrate fog and provide improved illumination. Use windscreen wipers and defrosters: Make sure your windscreen wipers are in good working order and that the appropriate speed setting is used to keep the windscreen clear. To prevent window fogging, turn on the defroster if necessary.
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How deep is a 6ft hole?
Answer:
I know this sounds quite deep but it is as deep as a grave
Explanation:
It's reality
Answer:
6ft or 72 inches
Explanation:
The hole is most likely 6ft or also known as 72 inches.
Hope this helps :-)
Have a great rest of your day or night!
<3 simplysun
Briefly explain the four (4) main classification of rural latrine in Ghana and give example each.
Answer:
Temporally pit latrine ,improved latrine,ordinary latrine
Explanation:
l think the temporally latrine are used for camp ,vacation. improved latrine are at home for those who can afford. an ordinary latrine is used by people who can not afford money for removing fieces in the improved or temporally latrine
What does hydraulic force provide in a braking system?
Power
Heat dissipation
Contact surface
Pressure
Answer:
4 or D pressure
Explanation:
A hydraulic braking system transmits brake-pedal force to the wheel brakes through pressurized fluid, converting the fluid pressure into useful work of braking at the wheels.
Answer:
pressure is the correct answer...
Explanation:
mark me brainliest
An evacuated tank is filled with gas from a constant pressure line. Develop an expression relating the temperature of the gas in the tank to the temperature of the gas in the line. Assume the gas is ideal with constant heat capacities, and ignore heat transfer between the gas and the tank.
The temperature of the gas in the tank is the ratio of heat capacities times the temperature of gas in the constant pressure line.
What is temperature?It should be noted that temperature simply means the measure of hotness and coldness in a body
From the given information, H is the enthalpy of gas on the constant pressure line, m is the mass flow rate and U is the internal energy of gas.
Here, the temperature of the gas in the tank is the ratio of heat capacities times the temperature of gas in the constant pressure line.
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Design an algorithm for computing √n
for any positive integer n. Besides
assignment and comparison, your algorithm may only use the four basic
arithmetical operations.
Which of these items is least likely to cause an exhaust emission test failure as of a result of excessive nox emissions? a) poorflow through the egr system. b) spark plug hot range. c) defective fuel injector d) defective oxygen senor
The item that is least likely to cause an exhaust emission test failure as of a result of excessive nox emissions is; poorflow through the egr system.
What is an exhaust emission?Exhaust emissions simply means substances emitted into the atmosphere from the exhaust discharge nozzle of an aircraft or aircraft engine.
Now, when the test fails as a result of excessive nox emissions, we can say that high NOx emissions can occur when an engine's air-fuel mixture is too lean. Thus, we can conclude that the reason for exhaust emission test failure as of a result of excessive nox emissions is due to poorflow through the egr system.
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Please help me with this question
Answer:
4.2
Explanation:
The "allowance" is the difference between the maximum shaft size and the minimum hole size.
maximum shaft = C +D = 8.5 +0.1 = 8.6
minimum hole = A -B = 4.8 -0.4 = 4.4
Allowance = 8.6 -4.4 = 4.2
__
For an interference fit, the allowance is negative.
explain the distinction between a real address and a virtual address?
Joe is a chemical engineer whose plant discharges heavy metals into the local river. By the test authorized by the city government, the amount of heavy metals is under the legal limit imposed by the city. By a new and more accurate test, the discharge is above the legal limit, that is, the discharge is in violation of environmental rules. Joe argues with his manager that the plant should reduce its discharges to comply with the newer and more accurate test.
The case contains a conceptual issue insofar as:
A.the issue is whether present emission rates constitute a violation of city regulations.
B.the issue is what is meant by “violation.”
C.the issue is how Joe should balance his obligations to his employer against his obligations to city residents.
D.the issue is whether the heavy metals presently emitted by the plant pose a threat to the health of the community.
Answer:
B probably
Explanation:
Because the prompt doesn't specify what sort of violation it could be anything maybe when they release the metals during the day and so on.
What is txv to hvac parts and etc???
Answer:
This is for all hvac parts lol
Answer:
Units larger than a terabyte include a petabyte, exabyte, zettabyte, yottabyte and brontob
A farmer has 12 hectares of land on which he grows corn, wheat, and soybeans. It costs $4500 per hectare to grow corn, $6000 to grow wheat, and $5000 to grow soybeans. Because of market demand the farmer will grow twice as many hectares of wheat as corn. He has allocated $6,375,000.00 for the cost of growing his crops. How many hectares of each crop should he plant?
The number of hectares of each crop he should plant are; 250 hectares of Corn, 500 hectares of Wheat and 450 hectares of soybeans
How to solve algebra word problem?
He grows corn, wheat and soya beans on the farm of 1200 hectares. Thus;
C + W + S = 12 ----(1)
It costs $45 per hectare to grow corn, $60 to grow wheat, and $50 to grow soybeans. Thus;
45C + 60W + 50S = 63750 -----(2)
He will grow twice as many hectares of wheat as corn. Thus;
W = 2C ------(3)
Put 2C for W in eq 1 and eq 2 to get;
C + 2C + S = 1200
3C + S = 1200 -----(4)
45C + 60(2C) + 50S = 63750
45C + 120C + 50S = 63750
165C + 50S = 63750 ------(5)
Solving eq 4 and 5 simultaneosly gives;
C = 250 and W = 500
Thus; S = 1200 - 3(250)
S = 450
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what is time and energy
Answer:
Explanation:
well time is like 12 : 30 or like 3:00
energy in what you use to power your homes
52 M ta 10 2-22 2-а. for C calculate the current passing through the 4ohm resistor using thevenin's theorem.
Explanation:
a stationer sell 8 pencil for the cost price of 10 ,find his gain percent
Technician A says that a range shift is used to select high or low gear ratios within the transfer case. Technician B says that a mode shift is used to select two wheel drive or four wheel drive. Which technician is correct
Technician A says that a range shift is used to select high or low gear ratios within the transfer case is true while Technician B is false.
What is this shift about?A range shift is known to often take place when there is either high or low speed ratio of the given transfer case that is known to be selected.
Note that A range shift arrangement is known to be seen for moving a gear reduction unit that is found between a low-range operating speed and also that of a high-range operating speed.
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There are withdrawn 100 ft3
of air measured at 30 psia and 90°F from a 50 ft3
tank containing air
initially at 100 psia and 140°F. What is the pressure of the air remaining in the tank if its
temperature is 130 °F?
Answer:
2+2g
what time is good afternoon my
A gaseous mixture contain 32.9 mol % He, 40.7 mol % N_{2} and 26.4 mol % Ar. Determine the composition of this mixture on a mass basis based on the molecular weight given: MW(He) = 4.003 , MW (N_{2}) = 28.02 MW(Ar) = 39.95
The composition of the mixture on a mass basis are as follows:
He = 131.70 gN2 = 1140.41 gAr = 1054.68 gnumber of moles = mass of substnce / molar mass
molar mass and molecular weight has equal numerical values therefore
Number of moles = mass of substnce / molecular weight
mass of substance = number of moles * molecular weight
the moles are expressed in percentage hence the total moles should be 100
check: 32.9 + 40.7 + 26.4 = 100
He
mass of substance = 32.9 * 4.003 = 131.6987 g
[tex]N_{2}[/tex]
mass of substance = 40.7 * 28.02 = 1140.414 g
Ar
mass of substance = 26.4 * 39.95 = 1054.68 g
5. Tech A says that shock absorbers can be tested with a "bounce test." Tech says than
is industry standard to replace an individual faulty shock absorber. Who is correct?
d. Tech A
b. Tech 8
8. Both A and B
d. Neither Anor B
Answer:
I know A is correct but not so sure about B, like I don't know if B is correct or wrong
List principles that are most relevant to drop jump exercise and justify your answers that selected principles you
are chosen are most relevant?
The principles referred to in the question are called biomechanical principles. Some of them are:
Principles of Force; andThe principle of impulse direction.
The principle that is most relevant to jumping is called Angular Momentum.
What is Angular Momentum?
Simply defined, this refers to the velocity of the rotation of a body around an axis or a fixed point.
Other principles of biomechanics are the principles of:
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Find the magnitude of the two pulling forces P and Q when their resultant is 50 N at 20° with Q. P 20°
A liquid jet vj of diameter dj strikes a fixed cone and deflects back as a conical sheet at the same velocity. find the cone angle θ for which the restraining force f = (3/2)rhoajvj^2 .
Answer:
lol i cant real it sorry
Explanation:
What action control to move the rudder from one point to the other?
The action control to move the rudder from one point to the other is doen when The rudder, when turned to starboard, produce a force that is towards the port (called the rudder force).
What controls the rudder of a ship?In a vessel or ship, found in small craft, the rudder is known to be operated manually through the use of a handle that is called a tiller or helm.
In a bigger vessels, the rudder is known to be turned through the use of an hydraulic, steam, or electrical machinery. The first type of rudder was side to be a paddle or oar.
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Assume you have four fins, each with a mass of 8. 0 grams. What is the total weight of these four fins? (Hint: watch your units!) PLEASE HELP ASAP! I have a 0% in this class
Answer:
0.314 kg
Explanation:
[tex]\frac{8}{1000}[/tex] x 4 x 9.81
Answer:
.3139 joules
Explanation:
Weight in the metric system is ma
you have 4 fins that have MASS of 8 grams each
or 32 grams which is .032 kg
WEIGHT would be .032 kg * 9.81 m/s^2 = .31392 j
What do we mean by “whiteness” and how does that
determine/influence our society?
Answer:
whiteness refers to white people(WHITE americans), back then white people got all the good stuff while colored people (meaning everyone who is not white) got old breaking down things. This influenced our society back then and made people think that white people are way better than colored. Which is SO NOT true, everyone is the same
An operator is working at an open site that has other loud machinery being operated up to 18 hours a day. What type of hazard might the operator be exposed to?
Select the best option.
Extreme Temperature
Radiation
Vibration
Noise
There are lots of hazard. The type of hazard that the operator will be exposed to is noise.
What is noise hazard?Noise is known to be a very popular form of physical hazards that is said to be present in all occupation.
This noise hazard is often based on its frequency, amplitude (volume) and term of exposure such as long or short term, It is said that one should wear hearing protection as long exposure to noise can lead to temporary or permanent loss of hearing.
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Which of the following is NOT associated with Urban Sprawl?
The option that is not associated with the given term called urban sprawl is; Option A: Blocking high views
What is Urban Sprawl?
Urban sprawl is defined as the rapid expansion of the geographic boundaries of towns and cities which is often accompanied by low-density residential housing and increased reliance on the private automobilefor movement.
Looking at the given options, "blocking high views" is the option that is not typically a problem associated with urban sprawl because urbanization usually takes place on relatively flat levels.
The missing options are;
a. blocking high views
b. destroying animal habitats
c. overrunning farmland
d. reducing green space
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Along with refining craft skills another way to increase the odds for career advancement is to
A. Get additional certifications
B. Work for multiple contractors
C. Become friends with management
D. Get more expertise from the Internet
The acquisition of additional certifications with a personal refined craft skills can increase the odds for career advancemen.
What is a career advancement?An advancement is achieved in a career if a professional use their skill sets, determination or perserverance to achieve new career height.
An example of a career advancement is when an employee progresses from entry-level position to management and transits from an occupation to another.
Therefore, the Option A is correct.
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How can the use of local materials improve the standard of living of Filipinos?