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a mixture of two isotopes 107 ag with a mass of 106.9041 and 109 ag with a mass of 108.9047 the average atomic wegith of silver is 107.868 what are the relative abudances expressed as precents of these two silver isotopes ?
A 2.30 mil sample of carbon monoxide is mixed with hydrogen in a 1:2 mol ratio and allowed to reach equilibrium in a sealed flask at temperature T. At equilibrium the mixture contains 0.120mol CO.
the total pressure is 1.04 times 10^4 kPa.
calculate the partial pressure of hydrogen
Fe2O3 + 3C = 2Fe + 3CO, 25.0 Mol Fe2O3, how many iron can be produced
NH3 + H2O HNO3 + NO
How many grams of nitrogen id required in this reaction to produce 5 grams of HNO3
how many grams of nitrogen dioxide is required in this reaction to produce 5. grams of HNO3
a salt that gives bright yellow flame when heated, when its aqueous solution reacted with dilute HCl turns lime water milky and when cacl2 is added in it white percipitate is formed
How can you explain that energy in one dimensional box is quantized ?
definition of bond enthalpy
Which one of the following pairs matched incorrectly?
A.the principal quantum Number (n) — Relative size of the orbital
B.The angular momentum quantum Number (l) —Shape of a given orbital
C.The magnetic quantum Number (ml) — Orientation of the orbital
D.Spins quantum number (ms) - Direction of the electron spin own axis
When Br2 and I2 react with phosphorous, only PBr3 and PI3 are produced. Give a reason for this.
