1. Calculate the number of atoms per cubic centimeter
of lead given that the density of lead is 11.3 ?/??3 and its atomic
weight is 207.21.
2. Calculate the ionization potential of a singly ionized ?? 4
atom.
3. (a) How much energy would be released if 1 g of deuterium were
fused to form helium according to the equation 2? + 2? → ?? 4 + ??
(b) How much energy is necessary to drive the two deuterium nuclei...
Use Avagadros number to calculate the number of molecules of
H2S, the number of atoms of H, and the number of atoms of S, in
5.25 moles of H2S. Show all work and keep track of units and
significant figures.
Calculate the number of oxygen molecules and the number of
oxygen atoms in 30.5 g of O2. Enter your answers in
scientific notation.
Calculate the mass of 9.31 x 1014 SO3
molecules. Enter your answers in scientific notation
Part A
Calculate the number of C atoms in 0.602 mole of C.
Part B
Calculate the number of SO2 molecules in 6.82 moles of SO2.
Part C
Calculate the moles of Fe in 2.34x1022 atoms of Fe.
Part D
Calculate the moles of C2H6O in 3.97x1024 molecules of
C2H6O.
For the given elements, calculate the number of atoms in 1.00
gram of that element.
How many atoms of magnesium are in 1.00 gram? How many atoms of
iron are in 1.00 gram? How many atoms of argon are in 1.00
gram?
.Calculate the number of copper atoms in a 63.55 g sample of
copper. .What is the mass in grams of 0.509 moles of AlCl3? .Which
of the following 100.0 g samples contains the greatest number of
atoms?
a. Magnesium
b. Zinc
c. Silver
4- If the drag force on a smooth sphere depends on the velocity
(V), sphere diameter (D), viscosity (?), and density (?), use
dimensional analysis to show the drag coefficient on the sphere is
a function of the Reynolds number only. (15%) ?
Calculate each of the following.
Part A
number of Ag atoms in 0.125 mole of Ag
Part B
number of C3H8O molecules in 0.925 mole of C3H8O
Part C
number of Cr atoms in 7.00 moles of Cr