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If an unknown substance has a mass of 0.6035g and a volume of 0.550 mL, calculate the density of the substance. Please show any unit conversion factors. Your answers must have the correct number of sig figures. a. g/ml b.g/l c. kg.ml d.kg/dm^3.
Was measured at several temperatures and the following data was collected, Using this data, graph ln k 1/T. using your graph determine the value of Ea please show work and show a graph
Explain concisely what would happen if top was taken off and a lit match was immediately dropped in the head space of each can. Assume the ambient temperature and thus that of liquid is 15 degree Celsius.
What mass of KClO4 (in kg) can be obtained from 3.40 kg of KClO when these reactions are carried out and which reactant is the oxidizing agent and which reactant is the reducing agent?
How many grams of KCOOH are needed to prepare 150 ml a buffered solution of pH 3.85 if the acid concentration, HCOOH is 0.1M
the molar mass of corn oil is 890gmole. how many moles and how many grams of sodium hydroxide are required to react
The concepts of sensitivity and detection limit are often used interchangeably. Specify the difference between these two concepts.
The complete combustion of 1.076g of C9H8O in a bomb calorimeter ( Cccalorimeter=3.895 kJ/ degree C) produced an increase in temperature of 11.21C. Calculate the molar enthalpy of combustion in kJ/mol.
Calculate the change in pH when 9.00 mL of 0.100 M NaOH(aq) is added to the original buffer solution. change in pH = ?
What mass in grams of tryptophan is in 0.25 quart of milk, assuming tryptophan accounts for 2.0% of milk by mass and that the density of milk is 1.04 kg/L.
That portion of the atmosphere known as the ozone layer can be found at a height of about 30 km above the earth's surface in the middle latitudes
The half-life of C-14 is 5730 years. A bone sample with 3.6 g of carbon has 32.6 disintegrations per minute. How old is the bone sample in years?
how many rotational levels are there, approximately, between v=0 and v=1 vibrational levels, which are 559.71 cm-1 apart in energy? B=0.2441 cm-1.
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