Question
In: Chemistry
Graphene has a C-C bond length of 1.42 Å. (a) Suppose you deposit a single layer...
Graphene has a C-C bond length of 1.42 Å.
(a) Suppose you deposit a single layer of graphene around the entire earth, which has a diameter of 1.27 × 10^7 m. What would be the mass of this graphene layer?
(b) If the graphite in a wooden pencil has a mass of 60 g, what surface area could it cover, if it would be exfoliated as a single layer of graphene?
Solutions
queen_honey_blossom answered 8 months agoRelated Solutions
A cylindrical aluminum pipe of length 1.42 m has an inner radius of 1.60 ×10-3 m...
A cylindrical aluminum pipe of length 1.42 m has an inner radius
of 1.60 ×10-3 m and an outer radius of 3.39
×10-3 m. The interior of the pipe is completely filled
with copper. What is the resistance of this unit? (Hint:
Imagine that the pipe is connected between the terminals of a
battery and decide whether the aluminum and copper parts of the
pipe are in series or in parallel.)
A single-storey brick veneer house (single layer of brick on a timber frame) has a front...
A single-storey brick veneer house (single layer of brick on a
timber frame) has a front corner lounge-room with a floorplan
measuring 4.0 m by 3.8 m. The ceiling is 3.0 m high. The building
fabric of the two exterior walls comprises a 12 mm thick layer of
plaster, a 100 mm air gap and the exterior house bricks (110 mm
thick). One of these walls has a window measuring 2.7 m wide by
1.35 m high, featuring a 3-mm...
A single-storey brick veneer house (single layer of brick on a timber frame) has a front...
A single-storey brick veneer house (single layer of brick on a
timber frame) has a front corner lounge-room with a floorplan
measuring 4.0 m by 3.8 m. The ceiling is 3.0 m high. The building
fabric of the two exterior walls comprises a 12 mm thick layer of
plaster, a 100 mm air gap and the exterior house bricks (110 mm
thick). One of these walls has a window measuring 2.7 m wide by
1.35 m high, featuring a 3-mm...
The double bonds are stronger and shorter than single bonds. For example, a C−C single bond...
The double bonds are stronger and shorter than single bonds. For example, a C−C single bond has an average bond energy of 347 kJ/mole while a C=C double bond has an average bond energy of 611 kJ/mole. Use valence bond theory to explain why a double bond is not simply twice as strong as a single bond.
A municipal bond service has three rating categories (A, B, and C). Suppose that in the...
A municipal bond service has three rating categories (A, B,
and C). Suppose that in the past year, of the municipal bonds
issued thoughout a country, 60% were rated A, 30% were rated B,
and 10% were rated C. Of the municipal bonds rated A, 30% were
issued by cities, 30% by suburbs, and 40% by rural areas. Of the
municipal bonds rated B, 40% were issued by cities, 50%
bysuburbs, and 10% by rural areas. Of the municipal bonds...
A municipal bond service has three rating categories (A, B, and C). Suppose that in the...
A municipal bond service has three rating categories (A, B,
and C). Suppose that in the past year, of the municipal bonds
issued thoughout a country, 60 % were rated A, 30 % were rated
B, and 10 % were rated C. Of the municipal bonds rated A, 60 %
were issued by cities, 10 % by suburbs, and 30 % by rural areas.
Of the municipal bonds rated B, 40 % were issued by cities, 50 %
by suburbs,...
Use orbitals to explain why bond rotation is possible around the single C‐C bonds in this...
Use orbitals to explain why bond rotation is possible around the
single C‐C bonds in this molecule but not the double C=C bond.
Note: To answer this question you may need to review prerequisite
topics you covered in first‐semester general chemistry.
Specifically, concepts about orbitals and bond formation should be
reviewed (sigma bonds, pi bonds, s orbitals, p orbitals, etc.).
Suppose that you deposit $871 in a savings account at ProsperityBank at the end of...
Suppose that you deposit $871 in a savings account at Prosperity
Bank at the end of each of the next 7 months. You plan to leave
these contributions and any interest earned in the account until 7
months are up. The interest rate is 2.47% per month. What is the
future value of your account at the end of the holding period? Do
not round at intermediate steps in your calculation. Round your
final answer to the nearest penny. Do...
Suppose you deposit $500 in an account at the end of this year, $400 at the...
Suppose you deposit $500 in an account at the end of this year,
$400 at the end of next yer, and $300 at the end of the following
year. The interest rate is 7.5%. How much will be in the account
immediately after the third deposit is made? How much will be in
the account at the end of three years if the deposits are made at
the beginning of each year? Please show work and proper equation to
use.
1. Suppose that you are considering the purchase of a coupon bond that has a $200...
1. Suppose that you are considering the purchase of a coupon
bond that has a $200 coupon payment every year for 5 years and a
$10,000 face value in the 5th year. Suppose the yield to maturity
of this bond equals to the market interest rate. a. What is the
bond worth today if the market interest rate is 3%? What is the
bond’s current yield? (Hint: knowing the interest rate, the value
of the bond is how much you...
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