Search
10.567 g sample of HCl required 75.45 ml of 0.9785 M of Sodium Hydroxide in titration,compute for percent purity
a solid 6.45 - cm square cube is made with a material that has a density of 1.13 g•cm^-3 . Calculate the centigram mass of this cube. Recall that the volume of a cubic shape is defined as the product of length x width x height
Directions. Solve the following problems. Show your solutions.
I. For the voltaic cell, 2 Na(s) + Fe2+(aq) → 2 Na+
(aq) + Fe(s)
a) Write the two half-reactions.
b) Write the cell notation.
c) Calculate E ° for the cell.
II. Consider the fission reaction 1
0n + 235
92U →
89
37Rb + 3 0
-1e + 3 1
0n + 144
58Ce
How much energy in kilojoules is released per gram of Uranium- 235?
III. For Al-28, calculate the binding energy in kilojoules /mol?
IV. Sketch a portion of the acrylonitrile polymer ( Refer to Table 23.1) assuming it is a
a) head-to-tail polymer
b) head-to-tail, tail-to-tail polymer
What is the empirical formula for the molecule?
A Molecule has been identified that contains three elements: carbon, hydrogen and oxygen. When the molecule is broken down, the mass percentages are:
C= 40.9%
H= 4.58%
O= 54.5%
The percentage of the x-21 isotope is 87.99% what is the contribution to the weight average from the x-21 isotope which has a mass of 21.00 amu
what mass of iron (ll) chloride is needed to produce 12.6 moles of sodium chloride
The carbinol in citric acid is
The resistance of a conductivity cell filled with an electrolytic solution is observed to be 180 ohm if the resistance of 0.1 M Kcl solution taken in the same cell was found to be 72 ohm calculate the conductivity of the given solution .
Given :the conductivity of 0.1 M Kcl solution =1.291/m
What is wootz steel? How it is produced?
