What minimum frequency of light is needed to eject a photoelectron from atoms of of platinum, which require at least 9.08 x 10^-
1 answer:
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Answer:
a) Chloride dioxide
b) Di nitrogen tetra oxide
c) Potassium phosphide
d) Silver -Ag
e) Aluminium nitride - AlN
f) Silicon dioxide
I) Sulfide
Answer: 1.15L
Explanation:Please see attachment for explanation
Answer:
Mole percent of in solution is 1.71%
Explanation:
Number of moles of a compound is the ratio of mass to molar mass of the compound.
Molar mass of = 110.98 g/mol
Molar mass of = 18.02 g/mol
Density is the ratio of mass to volume
So, mass of 60.0 mL of water =
Hence, 6.50 g of =
of
= 0.0586 moles of
60.8 g of =
of
= 3.37 moles of
So, mole percent of in solution = \frac{n_{CaCl_{2}}}{n_{total}}\times 100% =
% = 1.71%