Express the maximum planar densities of the following Unit Cells
(to 3 sig figs):
a) Simple Cubic (SC) Unit Cell w/ equal sized atoms
b) Body Centered Cubic (BCC) Unit Cell w/ equal sized atoms
c) Face Centered Cubic (FCC) Unit Cell w/ equal sized atoms
1. Carry out the following calculations, expressing each result
with the correct number of significant figures:?
a) 16.421 g + 0.050 48 g = ?
g
b) 4.6742 g / 0.003 71 L = ?
g/L
c) 0.541 mL + 32.1 mL - 2.5833 mL = ? mL
2. The following cylinder contains three liquids that do not mix
with one another:
water (density=1.0g/mL),
vegetable oil (density=0.93g/mL),
and mercury (density=13.5g/mL
-Which liquid is which?
a.Top liquid is?
b. Middle liquid...
Please use sig figs and dimensional analysis
and explain process!
1. Dissolve 69.0 g NaNO2 in 1.00 x 102 mL
H2O.
(a) If the temperature of the solution is 100°C, what is the
vapor pressure above the solution? The density of H2O at
100°C is 0.9591 g/mL.
(b) Calculate the change in the boiling point of the solution,
and calculate the boiling point of the aqueous solution.
(c) Calculate the freezing point of the solution. The density of
H2O at...
1. What is the two’s complement of: 00110101
2. Carry out the following calculation using 8-bit signed
arithmetic (convert to 8-bit binary sequences) and use two’s
complement for the negative number, give the result as both an
8-bit binary sequence and in base 10: 127 –
74.
3. What does shifting a binary sequence to left by 3 places
correspond to (from the arithmetic standpoint)
carry out the following operations,and express the
answer with the appropriate number of significant figures and
units.
a)(5.231 mm)(6.1mm)
b)72.3 g/1.5mL
c)12.21g + 0.0123g
d)31.03g + 12mg
The Federal Reserve has the power to __________________.
Note: Please select two correct answers.
carry out monetary policy through open market operations
lend money directly to its member commercial banks
act as a lender of first resort
open checking and savings accounts for individuals
(Sig Figs) Iron(III) oxide reacts with carbon
monoxide according to the equation:
Fe2O3(s)+3CO(g)→2Fe(s)+3CO2(g)
A reaction mixture initially contains 22.20 g
Fe2O3 and 14.00 g CO.
The online website said the answer is m = 2.32g ( 3 sig
figs)
While my answer was 2.318 ( 4 sig figs)
Heres my calculations
22.20 g Fe2O3 / 159.69 =
0.13901934999060680067631035130565 mols of
Fe2O3
14.00 g CO / 28.01 = 0.49982149232416993930739021777936 mols
of CO
0.13901934999060680067631035130565 x 3 =
0.41705804997182040202893105391696 mols of
Fe2O3 needed to...
Which of the following is a correct calculation for after-tax
salvage value if salvage value and book value differ?
A) Salvage – T(book value – salvage)
B) (Initial cost - Salvage)T – (book value – salvage)
C) Salvage – T(salvage – (initial cost – accumulated
depreciation))
D) (Salvage – accumulated depreciation)T – (salvage
– book value)