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If your unknown is soluble in water as well as doesn't produce bubbles with 5% NaHCO3 what steps would you follow to find out if your unknown is an amine?
Copper (II) fluoride contains 37.42% F by mass. Use this percentage to compute the mass of fluorine in grams contained in 28.5 g of copper (II) fluoride
an automobile gasoline tank holds 42 kilograms of gasoline. when the gasoline burns 147 kilograms of oxygen are
The isotopes of Chlorine are 35 Cl and 37 Cl, while the atomic mass is 35.5 Cl. In one molecule of chlorine, Cl2, it is possible to have one of each isotope. How many neutrons are present in this molecule
A 100.0 mL of 10.0 mM phosphate buffer, pH 7.5 (pka2 = 7.2). You are provided with 0.200 M KOH and 0.100 M KH2PO4 solutions, Calculate volume of KOH and KH2PO4 solutions
Determine the molarity of a salt solution of 150g of NaCl in 540g of water. Assume the density of water is 1.0g/mL. (MWNaCl = 58.44 g/mol)
A compound with the molecular weight of 391.98 was determined to be 3.1 % Hydrogen, 31.5 % Phosphorous, and 65.4% Oxygen. Determine the empirical formula and molecular formula for the compound.
1450 mmhg and 286k a skin diver exhales a 207ml bubble of air that si 77 n2 17 o26 co2 by volume.how many mole of n2
This reaction is sometimes used to inflate life rafts, weather balloons, and the like, where a simple, compact means of generating H2 is desired. How many grams of CaH2 are needed to generate 143L of H2 gas if the pressure of H2 is 823torr at 21de..
Consider the case of 10 oscillators and eight quanta of energy. Determine the dominant configuration of energy for this system by identifying energy configurations and calculating the corresponding weights. What is the probability of observing the..
Construct a neat and compact table, including title and footnotes if required, to summarise the following information taken from rough notes
Using a sample of a compound containing only oxygen and chlorine reacts with an excess of H2 gas to give 0.206 g water and 0.278 g HCl . ClxOy in presence of H2 (g) → HCl + H2O all the oxygen
dimethylglyoxime dmg is an organic compound used to test for aqueous nickelii ions. a solution prepared by dissolving
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