Determine the numbers of kilocalories of heat
Determine the numbers of kilocalories of heat will be formed by 160 grams of methane if every mole of methane produces 192 kilocalories of heat.
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The solubility of an unknown compound X in ethanol is found to be 1.4grams per 10 mL at 78ºC and 0.21 grams per 10 mL at 0ºC. Calculate the minimum amount of ethanol required to re-crystallize a 2.0 gram sample of compound X?
Explain what was the molecular weight of the substance in g/mol when the 2.75 g of a substance was dissolved in the water to yield 150 mL of solution and the concentration of that solution was determined to be0.0800 M.
It is asserted that 90 percent of cars approaching an individual toll both in New Jersey are equipped with an E-ZPass transponder. Find the probability that in a sample of six cars:
Determine the concentration of a solution made by adding the 30 mL of water to 35 mL of a 6.0 M solution, assume that the volumes are additive. Discuss in detail.
Determine the numbers of mL of the HCl will be required? In neutralization reaction, the number of milli equivalents of the acid and the base must be equal at the end point iIf the 20 mL of 0.15 N NaOH is used with 0.2 N HCl.
Complete the hypothesis test with alternative hypothesis (mu)d ?d < 0 based on the paired data that follow and d = M - N. Use ? (alpha) = 0.02. Assume normality.
Determine the numbers of grams of water must be added to 200 mL of NaOH solution in order to have a solution with a specific gravity of 1.157, 13.55% when the specific gravity of NaOH = 1.32, 28.83%
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