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As minerals were formed from the molten magma, different ions occupied the same cites in the crystals. Lithium often occurs along with magnesium in minerals despite the difference in the charge on their ions. Suggest an explanation.
What is the partial pressure of water present at equilibrium, if the reaction is initiated in a 26 L container with a partial pressure of H2 equal to 14.5 atm and excess iron oxide, Fe3O4.
Explain which one of the subsequent conditions is always true for a titration of a weak acid with a strong base. A colored indicator with apKa less than 7 should be used.
Complete and balance the molecular equation, including phases, for the reaction of aqueous copper(II) chloride, CuCl2, and aqueous potassium phosphate, K3PO4.
A 1.80-g sample of phenol (C6H5OH) was burn up in a bomb calorimeter whose total heat capacity is 11.66 kJ/°C. The temperature of the calorimeter plus contents improved from 21.36°C to 26.37°C. State a balanced chemical equation for the bomb calor..
Every measurement has a measurement uncertainty. Discuss how precise and accurate measurement can be achieved in spite of the inherent measurement uncertainty.
Calculate [Ag+] present in a solution at equilibrium when concentrated NH3 is added to a 0.01M solution of AgNO3 to give an equilibrium concentration of [NH3] = 0.2M.
A C-C bond in ethane is free to rotate but a 'C=C' in ethene is not. Why? What will be the consequences of rotation of 'C=C'. Explain with appropriate orbital diagram
Determine the new concentration of the solution after it is diluted by adding 159 mL of water.
a chemist finds that 90.00 grams of an unknown compound contains 32.76 grams of manganese 19.08 grams of sulfur and
Trans-1-bromo-2-methylcyclohexane reacts under E2 conditions to give a single elimination product. What is this product and explain how it is formed by conformational analysis.
How many moles of gas are present when you collect 35.83 mL of the gas over water at 25.3?C and 0.97 atm?
Question- Draw the molecular orbiatal diagram for 1,4-pentadiene showing in-phase and out-of phase overlap and indicate their energy levels and the number of electrons in each and indicate which one is the HOMO and which one is LUMO
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