Find identity and the atomic mass of the other isotope
Gallium has an average atomic mass of 69.7 amu. In a typical sample, 60.4% of Ga exists as Ga-69 (68.9257 amu). What is the identity and the atomic mass of the other isotope?
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Bearing in mind the Jahn-Teller theorem, rank the following compounds in terms of their degree of deviation from idealized octahedral structure: [Cr(CN)6]4-, [Cu(H2O)6]2+, and [Cr(OH2)6]3+. Explain your reasoning.
If a 0.10M aqueous weak acid solution has a pH of 2.50 what percentage of the acid is dissociated
2750 ml sample of 3 M Hcl solution is treated with 4.66 gm of magnesium . Calculate the concentration of the acid solution after all the metal has reacted. Assume that the volume remain unchanged-------M HCl.
A cylinder, with a piston pressing down with a constant pressure, is filled with 2.10 moles of a gas (n1), and its volume is 50.0 L (v1). If 0.500 mole of gas leak out, and the pressure and temperature remain the same, what is the final volume of
How many grams of the K2C2O4 X H2O in the salt mixture remain unreacted (in excess)? f. what is the percent by mass of each salt in the mixture
In developing the melting point of a compound, if the heating is carried out too fast, would the observed melting point be higher or lower and why?
indicate the direction of the bond polarity of NH3 and CH4. are either of the molecules polar. is ClH3 polar. why or why not.
The chloride of an unknown metal is believed to have the formula MCl 3. A 1.891g g sample of the compound is found to contain 3.606×10^-2 mol. Find the atomic mass of M.
What is the pH of a solution made by adding 10.5 grams of sodium acetate, CH3COONa to 400 mL of 0.180 M hydrochloric acid.
680 mL of a solution of unknown concentration is diluted to a final volume of 1700 mL where the concentration is found to be 1.2 M. What was the initial molarity
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