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shutvik [7]
3 years ago
13

One problem with organic equations is that we tend to focus on what is happening to onemolecule at a time, we forget that there

are many, many molecules undergoing COLLISIONS in thereaction. Assume you used exactly 1.5 g of 1-butanol in your reaction, calculate the number ofmol es, AND, give the number of MOLECULES of alcohol. You will need to know that a mole of asubstance is equal to Avogadro's number (6.022 x 1023) of that molecule. Give the number of molecules to3 significant figuresand do NOT USE SCIENTIFIC NOTATION, include all of the zeros in your number.After each number write down the number of zeros you included in parentheses. For example, one of youranswers was 6.022 x 1023, then you would write it as follows: 602000000000000000000000 (21 zeros).SHOW YOUR WORK and INCLUDE ALL UNITS!
Engineering
1 answer:
stellarik [79]3 years ago
3 0

Answer:

1 2 200 000 000 000 000 000 000 (20 zeros) molecules

Explanation:

Molar mass of 1-butanol = 74.121 g/mol

number of moles = mass given / molar mass

where mass given = 1.5 g

number of mole = 1.5 g / (74.121g/mol ) = 0.0202 moles

number of moles = number of molecules / Avogadro's constant

where Avogadro's = 6.022 × 10²³ mol⁻¹

number of moles = 6.022 × 10²³ × 0.0202 moles = 1 2 200 000 000 000 000 000 000 (20 zeros) molecules

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Ammonia gas is diffusing at a constant rate through a layer of stagnant air 1 mm thick. Conditions are such that the gas contain
fiasKO [112]

Answer:

The solution to this question is 5.153×10⁻⁴(kmol)/(m²·s)

That is the rate of diffusion of ammonia through the layer is

5.153×10⁻⁴(kmol)/(m²·s)

Explanation:

The diffusion through a stagnant layer is given by

N_{A}  = \frac{D_{AB} }{RT} \frac{P_{T} }{z_{2} - z_{1}  } ln(\frac{P_{T} -P_{A2}  }{P_{T} -P_{A1} })

Where

D_{AB} = Diffusion coefficient or diffusivity

z = Thickness in layer of transfer

R = universal gas constant

P_{A1} = Pressure at first boundary

P_{A2} = Pressure at the destination boundary

T = System temperature

P_{T} = System pressure

Where P_{T} = 101.3 kPa P_{A2} =0, P_{A1} =y_{A}, P_{T} = 0.5×101.3 = 50.65 kPa

Δz = z₂ - z₁ = 1 mm = 1 × 10⁻³ m

R =  \frac{kJ}{(kmol)(K)} ,    T = 298 K   and  D_{AB} = 1.18 \frac{cm^{2} }{s} = 1.8×10⁻⁵\frac{m^{2} }{s}

N_{A} = \frac{1.8*10^{-5} }{8.314*295} *\frac{101.3}{1*10^{-3} }* ln(\frac{101.3-0}{101.3-50.65}) = 5.153×10⁻⁴\frac{kmol}{m^{2}s }

Hence the rate of diffusion of ammonia through the layer is

5.153×10⁻⁴(kmol)/(m²·s)

5 0
3 years ago
What input is required from ADC to allow the INS to calculate W/V?
Kazeer [188]

TAS is an important input which is required from ADC to allow the INS calculate W/V.

<h3>What is INS?</h3>

INS is abbreviation for Inertial Navigation System and it can be defined as a navigation device that makes use of motion sensors, a computer, and rotation sensors, so as to continuously calculate by dead reckoning the velocity, position, and orientation of a moving object.

In the Aviation and Engineering filed, True Airspeed (TAS) is an important input which is required from ADC to allow the Inertial Navigation System (INS) calculate W/V.

Read more on Inertial Navigation System here: brainly.com/question/26052911

#SPJ12

4 0
2 years ago
Savaine are you serious
xeze [42]

Explanation:

savaine are you serious

8 0
3 years ago
Which of the following is not a reason to give yourself extra "cushion" when driving?
damaskus [11]

Answer:

The question is incomplete, the complete question is:

Which of the following is not a reason to give yourself extra "cushion" when driving?

A. Poor visibility B. Poor road conditions C. Inclement weather D. None of these.

The correct answer is D. None of these.

Explanation:

All the options are not reasons to give yourself an extra cushion when driving, rather they are reasons that are not favorable to driving at all.

A cushion is a certain amount of distance you are supposed to keep between you and the car in front of you to allow easy maneuvering in any condition.

A typical cushion is 3 seconds between you and the car in front of you, in less than perfect conditions like bad weather or poor road conditions an additional second must be added to it.

7 0
3 years ago
City A and city B are located at the same latitude and elevation. City A is a coastal city, and city B is located far inland. A
jenyasd209 [6]

Answer:

Option 4

Explanation:

8 0
3 years ago
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