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1) Fired crucible is handled with oily fingers before its mass measurement. Subsequently, in part b.1, the oil from the fingers is burned off. Will the percent water in the hydrated salt be reported as being too high, too low, or unaffected ? Explain please
2) During the cooling of the fired crucible, water vapor condensed on the crucible wall before its mass measurement. The condensation did not occur following thermal decomposition of the hydrated salt in part b. Will the percent water in the hydrated salt be reported as being too high, too low , or unaffected ? Explain.
3) The crucible is handled with oily fingers after its mass measurements but before the 3g sample of the hydrated salt be reported as being too high, too low or unaffected ? Explain
Hydrogen atoms are excited by a laser to the n=4 state and then allowed to emit. What is the maximum number of distinct spectral lines (lines of different wavelengths) that can be observed from this system? Calculate the wavelength of each of thes..
What mass of sucrose should be combined with 483 of water to make a solution with an osmotic pressure of 8.50 at 320 ? (Assume the density of the solution to be equal to the density of the solvent.)
Calculate that how many grams of potassium chloride remain dissolved and how many grams came out of this given solution?
A couple of drops of water were accidentally placed on the properly folded filter paper before its mass was measured.
Determine ΔHvap for a compound that has a measured vapor pressure 24.3 torr at 273 K and 135 torr at 325 K: 1. 34 kJ/mol, 2. 13 kJ/mol, 3. 24 kJ/mol, 4. 79 kJ/mol, 5. 41 kJ/mol
A saturated solution of magnesium hydroxide in equilibrium with undissolved solid is prepared at 25 degree celcius. The pH of the solution is 11.03. Calculate the value of the Ksp
Based on this equation, what is the value of the Rydberg constant (R) in m^-1? (5 significant figures)
What are some factors to help you determine the relative strength of a base. For example, how would you know that NH2- is a very strong base. Or that OH- is a weaker base than NH2- And that CN- is a relatively weak base
Calculate the ph of a solution formed by mixing 100.0ml of .20 M HCLO with 200.0 ml of .30 M KCLO. the ka for HCLO is 2.9x10^-8
What NaCl concentration results when 214 mL of an 0.680 M NaCl solution is mixed with 592 mL of a 0.230 M NaCl solution
the products formed are sodium bromide and hydrogen sulphite. Calculate the mass of sodium bromide produced.
1 give an anion that can be added in solution to separatea naaq from agaqb naaq from ca2aq2 write a balanced equation
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