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Problem- Which of the combinations below will produce some precipitate (even if only a very small amount)? The concentrations shown are after mixing, but before reaction.
4.42e-5 M Ba(NO3)2 + 1.75e-6 M Na2SO4; Ksp (BaSO4) = 1.10e-10.
9.78e-6 M Ca(NO3)2 + 8.50e-2 M Na2CO3; Ksp (CaCO3) = 8.71e-9.
3.53e-8 M AgNO3 + 1.82e-9 M NaI; Ksp (AgI) = 8.51e-17.
3.19e-2 M Mg(NO3)2 + 2.90e-4 M NaF; Ksp (MgF2) = 6.46e-9.
Adding a concentrated solution of NH4OH(aq) caused the precipitation of Cr+2 and Fe+3 as insoluble hydroxides. The Cu+2 remained in solution and forms the complex ion Cu(NH3)4+2. Which balanced molecular equations represent each of these reactions
Give the molecular formula of a hydrocarbon containing five carbon atom containing five carbon atoms that is (a.) an alkane, (b.) a cycloalkane, (c.) an alkene, (d.) an alkyne
Suppose helium nuclei has exactly the same mass as adding two single protons and neutrons, the Sun's luminosity would be
Problem- A driver jumps from the high board into a driving pool. Sketch an illustration of the driver's motion. Label each of the following on your sketch
A sample obtained from that mixture containing 443900 particles weighs 10.0g. Determine the number and percent relative standard deviation of NaCN particels from a sample of the mixture weighing 7.16g.
(a) If the fuel consists of 9.3 mole CH4, 3.1 mole C2H6, 0.40 mol C3H8, and 0.20 mole C4H10, what mass of CO2 (g) is produced per minute? (b) How much heat is released per minute?
Based on the G°' reported above, compute the equilibrium constant (at 25°C) and then comment on the spontaneity forward, backwards or at equilibrium of this reaction under standard conditions.
When a metal was exposed to light at a frequency of 4.54× 10^15 s-1, electrons were emitted with a kinetic energy of 3.10 × 10^-19 J.
determine the amount of heat energy is needed to raise the temperature of 0.362 kilograms of cu from 23. degree celsius
Which of the following are more soluble in acidic solution than in pure water. Ca(OH)2 Mg3(PO4)2 PbBr2
a 265- flask contains pure helium at a pressure of 757 . a second flask with a volume of 485 contains pure argon at a
Naturally occurring chlorine is composed of 35Cl and 37Cl. The atomic weight of chlorine is 35.453. What are the percentages of 35Cl and 37Cl in naturally occurring chlorine. Assume that the mass of 35Cl and 37Cl are 35 and 37 amu respectively.
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