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Problem- Note from the following table that the increase in atomic radius in moving from Zr to Hf is smaller than in moving from Y to La. Atomic Radii) Sc 1.44 Ti 1.36 Y 1.62 Zr 1.48 La 1.69 Hf 1.50 suggest an explanation for this effect
Explain the each and every step in detail for help
An unknown metal forms two different compounds with oxygen. When a 2.412 g sample of the metal is combined with oxygen, 3.466 g of Oxide A are formed. What is the cation charge for oxide A
How many moles of CO(NH2)2 are present in 150 g of water, if the freezing point of the solution is -4.02C? kf(water) = 1.86 K · kg/mol.
The Kb of methylamine, CH3NH2, is 4.2 x 10-4. Calculate the pH of a solution of 0.431 M methylamine.
find out the ΔH rxn for the given reaction as C 3 H 4 (g) + 2 H 2 (g) → C 3 H 8 (g)
Under what conditions can you ensure that substitution will predominate and under what conditions can you ensure that elimination will predominate?
Hypothesize on the possible physiological effects of the mutation or loss of one of the enzymes in the Beta-Oxidation pathway.
question 1 on a potential energy diagram the activation energy is greatest under which of the following conditions?the
A 0.00445 mol sample of a weak acid, HY, is dissolved in enough water to form 0.0976 L of solution. If the pH of the solution is 4.02, what is the Ka of HY? Use E notation with 3 significant figures.
Compare and contrast the nitrogen requirements of microorganisms and higher forms of life, describing how their respective requirements are met
1 Liter H2O with a pH of 7. How much acetic acid (C2H4O2 with K=1.8 x 10^-5 and M.W. of 60.05g/mole) needs to be added to lower the pH of the water to 3
we were taught about effective nuclear charge as a result ofshielding but not taught how to calculate it. so my
A mixture of gases containing 0.40 mol of SO2 and 0.20 mol of O2 in a 4.0L flask reacts to form SO3. If the temperature is 25oC, what is the pressure in the flask after the reaction is complete
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