The density of a 10 kg cube of silver is 10.5
g/cm3. What would the density of a 5 kg cube of silver
be?
I thought the answer would be 5.25 g/cm^3 because
m1/m2=p1/p2 so 10kg/5kg=10.5 g/cm^3/ x and you solve for x. But
this is coming up as wrong and I don't know why, do i need to
convert the kg to g???
A 67.2 g sample of a gold and palladium alloy contains
3.43×1023 atoms .
1) What is the mass percentage of the gold in the alloy?
2) What is the mass percentage of the palladium in the
alloy?
If you add a 1 cm3 (1 ml) cube of salt (density 2.16
g/cm3) to 10 ml of water (1 g/cm3) what is a
reasonable total volume?
If you add a 1 cm3 (1 ml) cube of salt (density 2.16
g/cm3) to 10 ml of water (1 g/cm3) what is a
reasonable final density?
If you add a 1 cm3 (1 ml) cube of salt (density 2.16
g/cm3) to 10 ml of water (1 g/cm3) what is a
reasonable final...
Problem 19.54
A cube 21 cm on each side contains 3.2 g of helium at 20∘C. 1200
J of heat energy are transferred to this gas.
Part A
What is the final pressure if the process is at constant
volume?
Express your answer to two significant figures and include the
appropriate units.
Part B
What is the final volume if the process is at constant
pressure?
Express your answer to two significant figures and include the
appropriate units.
consider two cubes: a copper cube (Density = 8.96 g/cm^3) and a
lead cube (Density = 11.4 g/cm^3) that both have an edge length of
3.0 cm.
1) which cube (if either) has the greater mass? How do you
know?
2) which cube (if either) displaces the more water when fully
submerged? how do you know?
3) which cube (if either) experiences the buoyant force of
greatest magnidude when fully submerged? How do you know?
4) calculate the magnitude of...
A 10.3 g wire has a density of 5.9 g/cm3 and a resistivity of
1.51 × 10−7 Ω · m . The wire has a resistance of 106 Ω . How long
is the wire? The wire is made up of atoms with molecular mass 48
g/mol. What is the drift speed of the electrons when there is a
voltage drop of 243.8 V across the wire? Assume there is one
conduction electron per atom. The fundamental charge is 1.602...
1.453 moles of a metal with a density of 10.49 g / cm3 (STP) and
a temperature of 23.35oF, is placed in a calorimeter isolated from
the environment that contains 87.35mL of pure ethanol (density
0.9988 g / mL) and that is at 50.50oF. a) Determine the equilibrium
temperature of the system.
The molecular weight of ethanol (CHgCHzOH) is 46 and its density
is 0.789 g/cm3. A. What is the molarity of ethanol in beer that is
5% ethanol by volume? [Alcohol content of beer varies from about
4Vo (lite beer) to B% (stout beer). B. The legal limit for a
driver's blood alcohol content varies, but 80 mg of ethanol per 100
mL of blood (usually referred to as a blood alcohol level of 0.08)
is typical. What is the molarity...
1. Calculate the approximate density of nuclear matter in g/cm3
. What would be the diameter of a neutron star with the mass of two
solar mass (2M)?
2. Calculate the binding energy of the last neutron in 4He and
the last proton in 16O. What does this tell you about the stability
of 4He relative to 3He, and of 16O relative to 15N?