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The mass percentage of HCL within a solution is 10.00%. Specified the density of this solution is 1.049g/mL Determine the molarity?
Subsequent to 57 min, 39.0% of a compound has decomposed. Explain what is the half-life of this reaction assuming first-order kinetics
Silver chloride usually does not ppt in solution of 1.0M NH3. However AgBr has a smaller Ksp. Will AgBr ppt form a solution containing 0.01M AgNO3, 0.01M NaBr and 1.0 M NH3? Ksp = 5 x 10^-13
In an experiment, 0.30 mol H2 and 0.30 mol I2 are mixed into a 1.00-l container, and the reaction forms HI. If Kc =49. for this reaction, what is the equalibrium concentration of HI. I2(g) + H2(g) 2HI(g)
Observe the d-orbitals on a central metal and use the character table to derive their irreducible representations (remember which column to look at). Circle any that are nonbonding for sigma interactions.
What is the molarity of an aqueous solution containing 75.3 g of glucose (C6H12O6, mol wt = 180 g/mole) in 35.5 mL of solution
How many fluoride atoms are in the tube of toothpaste? How many grams of sodium ion are in 2.10 toothpaste? How many molecules of triclosan are in the tube of toothpaste?
Three isotopes of silicon occur in nature: 28Si (92.21 %) which has a mass of 27.97693 amu; 29Si (4.70 %) which has a mass of 28.97659 amu; and 30Si (3.09 %) which has a mass of 29.97376 amu. Calculate the average atomic mass for silicon atom.
Carbon dating is a well-calibrated radiometric dating system used for items generally younger than 50,000 years old (14 C has a half-life of 5730 years).
Arrange the following in order of increasing basicity: a) ch3nh2, ch3nh3+, ch3nh- b) ch2o-, ch3nh-, ch3ch2- c) ch2ch(triple-bond)ch-, ch3ch2ch2-, ch3c(trip-bond)c-
Hard water often contains dissolved Ca2+ and Mg2+ ions. One way to soften water is to add phosphates. The phosphate ion forms insoluble precipitates with calcium and magnesium ions
If the cell potential is 0.061 V at 25?, what is the pH of the electrolyte at the hydrogen electrode
determine the concentrationof the original HCl acid solution in units ofa) Molarityb) Percent by mass (Hint: refer to Skill Builder 6 to see the relationship between molarityand percent mass units
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