Calculated molar mass of the unknown metal
If an iron scoopula, instead of a plastic one, is used to add unknown metal to HCl solution, will it affect the calculated molar mass of the unknown metal?
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A 4.80 g nugget of pure gold absorbed 298 J of heat. What was the final temperature of the gold if the initial temperature was 24.0°C? The specific heat of gold is 0.129 J/(g·°C).
How does [HCl] Affect the Change in Temperature at Constant Volume in NaOH Solution? What kind of relationship? Linear or power or exponential etc.
How many grams of ethylene glycol (automobile antifreeze, {rm C_2H_6O_2}) dissolved in 3.30 {rm kg} of water is needed to lower the freezing point of water in an automobile radiator to 24.5^circ {rm C}?
Consider a house into which radon is emitted through cracks in the basement. The total volume of the house is 650 m3 (assume that the volume is well mixed throughout).
one hundred grams of water is saturated with NH4CLat 50 degrees C. According to table G, if the temperature is lowered to 10 degrees , what is the total amount of NH4CL that will precipitate?
Consider a sample that is a mixture composed of biphenyl, benzoic acid, benzyl alcohol. Predict the relative Rf values for the three components in the .
Which pair would be least diffcult to separate by fractional precipitation?
Determine the number of moles of O2 produced by the decomposition of 639 g of NaClO3.
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