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What is another reagent other than phosphoric acid that can be used to determine the concentration of calcium ion by a conductometric method? What is the important criterion? (Check solubility rules)
The reaction used in the experiment is:Ca(OH)2 (aq) + H3PO4 (aq) yields Ca3(PO4)2 (s) + H2O
What other reagents work the same way as phosphoric acid?
calculate the formal concentration of a sodium acetate solution prepared by diluting 45.0 ml of a solution containing
Develop a stoichiometry problem that includes finding a mass of reactant/product from another mass of reactant/product.
Suppose that 0.650mol of methane, \rm CH_4(g), is reacted with 0.800mol of fluorine, \rm F_2(g), forming \rm CF_4(g) and \rm HF(g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released
Consider the ring structure of beta-D-glucose. It will give a positive test as a reducing sugar. How can that happen?
A gas is expanded in a cylinder from 2.00 L to 12.0 L against an external pressure of 1.80 atm. At the same time, it absorbs 2.56 x 103 J of heat from the surroundings. Calculate ?E of the gas in J. (1 L•atm = 101.3J)
The hydrolysis of glucose-1-phosphate to glucose and Pi has a standard free energy of -5 Kcal/mol. What's the equilibrium constant for the reaction
Rank the substituents shown below in order of Cahn-Ingold-Prelog priorities (1 = highest priority group, 4 = lowest priority group).
design a qualitative analysis scheme that will be used to calculate which cations are present in a solution containing
determine what is the atomic radius of each atom that composes it if a simple cubic unit cell has if the length 0.36
Below 84 K, argon also freezes to a solid that has a similar structure but different volume and mass. If the volume of each unit cell in argon is 82 percent of the xenon unit cell, what is the predicted density of solid argon
Based on your answer to (1), would you be more or less confident about your density measurement if you used the smaller sample volume, rather than the normal 8 mL sample volume? Briefly explain.
how many grams of NO2 will be produced when 2.0 L of nitrogen at 840 mmHg and 24 C are completely reacted N2+2 O2-----2 NO2
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