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Problem- Halfway through his Conservation of Mass experiment, a Joe E. Cool realized that he forgot to weigh his crucible after heating it. Short of starting over, what can Joe do to ensure accurate results? Be specific and detailed in your answer.
Joe burned his magnesium sample and obtained a light gray product. Since his crucible looked dirty anyway Joe skipped the step of heating to constant mass, weighed the gray sample, and calculated the mass of the product. Was his resulting mass likely to be high or low?
Your answer must be supported by illustrations, Please answer with work shown to receive points:
Suppose that 0.82 g of water condenses on a 80.0 g block of iron that is initially at 24 C.If the heat released during condensation goes only to warming the iron block
The activation energy for the isomerization of methyl isonitrile (see figure below) is 160 kJ/mol. Calculate the fraction of methyl isonitrile molecules that has an energy of 160.0 kJ or greater at 499 K.
The vapor pressure of water at 25 degrees C is 23.8 torr. Determine the mass of glucose (MW=180.0 g/mol) needed to add to 500.0 g of water to change the vapor pressure to 23.1 torr.
What current (in Amps) is required to plate out 1.22 g of nickel metal from a solution of Ni2+ in 1 hour
How could you determine (without tasting) whether a container of a colorless liquid contained ethanol or ethanol and sucrose
Sodium bicarbonate is called baking soda because when heated, it releases carbon dioxide gas, which is responsible for the rising of cookies, doughnuts, and bread. Calculate the volume (in liters) of carbon dioxide by heating 4.37 g of sodium bica..
Calculate the amount of water per gram of compound required to steam distill nitrobenzene (MW 123.11), which has an azeotrope temperature of 99 oC.
What happens to the absorbance at the analytical wavelength for P of the mixture as the reaction progresses?
Consider the reaction of 25.0 mL of 0.20 M AgNO 3(aq) with 25.0 mL of 0.20 M NaBr(aq) to form AgBr(s) at 25 °C. What is ?G for this reaction? The K sp of AgBr is 5.0 x 10 -13 at 25 °C.
Explain why Lewis dot structure for S2Cl2 IS Cl - S - S - Cl why does the two sulfurs have to be beside each other and the two chlorines have to be the first and last?
Explain which substance in Table 5.2 needs the smallest amount of energy to raise the temperature of 41.0g of that substance by 12K Compute the energy needed for this temperature change. The substance is Hg(l).
For the reaction SO3+H2O yields H2SO4, how many grams of sulfur trioxide are required to produce 4.00 mol of sulfuric acid?
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