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Some hydrated metal chlorides will decompose upon heating, evolving hydrogen chloride along with water. How could one determine if this was happening to a sample of a particular metal chloride hydrate?
magnetite was found to contain 2.5698 g of iron and 0.9816 g oxygen. What is the empirical formula for this oxide of iron?
Supppose that a 1 L solution is made from 226 mg of citric acid (C6H8O7).What is the molarity of citric acid?
determine the net change of oxidation number of each of the elements in the redox equations.
the open end of a melting point capillary tube allow you to measure the melting point of a compound that sublimes?
Choose the answer in which the oxides are arranged in order of increasing acidity (least acidic compound listed first).
How many joules of heat are required to heat 143 g of aluminum from 55.0 oC to 66.5oC?
what common laboratory test of viscoelasticity does this test most closely correspond? Estimate the average life of the same tubing in the same rupture test at 30 deg C and 37 deg C
calculate the moles of CO2 you would theoretically expect from 0.253 grams of an alka-seltzer tablet at 721. torr and 291. K.
How many grams of antifreeze (C_2 H_4(OH)_2) would be required per 500 g of water to prevent the water from freezing at a temperature of -27 degrees celsius? answer in units of g.
Calculate the number of grooves per centimeter for your grating. Hint: if the groove spacing was 0.1 ft, then how many grooves would you have per foot?
The mass density of the resulting solution was 1040 kg/m^3. Calculate themolarity and molarity of sucrose in the solution.
If the solubility of NaBr at 25 degree C is 14.3 g/100 g H2O, what mass os NaBr can be dissolved in 300 grams of water
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