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Question: The compound MgI2 times XH2O is analyzed to determine the value of X. A 1.557-g sample of the compound is heated to remove all the water, 1.0254 g of MgI2 remains after heating. What is the value of X?
When a particular metal is illuminated with photons, one electron is observed for each absorbed photon. What effect would decreasing the wavelength and number of photons, have on the electrons leaving the surface
A solution is prepared by dissolving 159 g sucrose (C12H22O11) in enough water to produce 1.40 L solution. What is the molarity of this solution?
Show the different ways to convert 3-methyl-2-butanone to 2-methyl-3-hexanone. Then show the product that forms when 3-phenylpropanal is allowed to mix with sodium hydroxide catalyst.
Calculate the maximum mass of pure ethanol that can be vaporized in 10 min from a beaker left in strong sunshine, assuming that the surface area of the ethanol to be 50 cm^2
What is the heat change in J associated with 15 g of solid ethanol at -177 oC changing to gas at 146 oC?
The system is being designed with 18 Solec modules. Two parallel-series arrays of 9 modules in each. Design wiring from the two arrays consider both cases: combine wires into one set with high current or run two sets of wires with lower current: 50..
what happens to recrystallization if the crystals obtained by suction filtration are not washed with fresh hot solvent
The next items refer to the result of mixing 400. ml of 0.10 M NaOH and 100.0 mL of 0.10 M Mg(NO3)2. Reaction as shown goes essentially to completion.
You have 20.00 mL HCl (aq) - you are able to reach equilibrium (at pH 7.00) through titration by adding 14.25 mL of 0.2030 M NaOH. What is the Molarity of the acid
For the borax solution at 48?C, no solid borax is present in the test tube. 5 millimeters is transferred to the corresponding calibrated test tube and subsequently titrated with the standardized hydrochloric acid solution.
A solution of Ba(OH)2 and a solution of H2SO4 are mixed. Water and precipitate of BaSO4 are formed.
Reversible adiabatic processes are isentropic. Are isentropic processes necessarily reversible and adiabatic?
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