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A testing facility found that 8.35*10^23 molecules of carbon dioxide were produced when a sample of octane was burned in air. If this combustion process is known to produce an 86.7% yield, how many grams of octane were in the sample?
The average distance between planet X and Earth is about 2.59 x 108 miles. How long (minutes) would it take pictures transmitted from a space vehicle on Planet X's surface to reach Earth
When a neutralization reaction was carried out using 100 ml of .7890 NH3 water and 100 ml of .7940M acetic acid change in temperature was found to be 4.76 degress C. Specific heat of reaction mixture was 4.104 J g-1 K-1 and density was 1.03 g mL-1..
Calculate the pH at the equivalence point for the titration of 0.100 M methylamine
Determine the mass of phosphorus (P) is required to make 39 grams of this product?
Calculate the pH after 15.0 mL of 0.40M HCL is added to 20.0 mL of 0.50 M NH3 (Kb NH3= 1.8 x 10^-5)
Explain how it is that the concentrations of chloride ions in these beakers are different even though the concentrations of each substance(compound) are the same.
the properties of pure water that had been boiled and condensed and the properties of pure water that has been frozen and then melted? Explain please.
purified a new protein and find that it contains 0.154 percent Mn. Assuming that there are three atoms of manganese per molecule of protein, what is the molar mass of the protein
The titration of a 0.1000 M HOCl (hypochlorous acid) is done using 0.1003 M NaOH. If a 25.00 mL aliquot of acid is used, determine the volume of NaOH required to reach the equivalence point
What would you expect to observe when adding one drop of iodine-potassium iodine reagent to each of the four carbohydrates?
For the reaction: H2+ClO2 = 2 HOCl; K=0.0900; what us the concentration of (HOCl), at equilibrium if 0.0230 mol of H2 and 0.0230 mol of ClO2
The mass of the final solution is 73.0 grams, and its heat capacity is 3.85 J/g°C; the heat capacity of the calorimeter is 5.0 J/°C. Calculate the ?Hreaction in kJ/mol metal.
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