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Based on the numbers gathered from the lab in finding the freezing point of cyclohexane and given the percentages of c and h. how do I find the empirical formula?
Calculate the probability of finding an electron that is described by this wavefunction in a volume of 1.0 pm3 (i) centred on the nucleus.
A reaction has a standard free-energy change of -4.78 kJ/mol at 25 degree C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M, respectively
A 370. mL air sample collected at 35°C has a pressure of 550. torr. What pressure will the air exert if it is allowed to expand to 425 mL at 49°C.
If 32 mL of 6.8 M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid ?
describe what is meant by part per million and part per billion. compare and contrast the normal definition when
If 1L of .15M NaOH is unprotected from mmol of CO2, what will be its new molarity when it is standardized agains a standard solution of HCl using
If 0.80 g of gas occupies 295mL at 25 degrees Celsius and 680 mm Hg of pressure, what is the molar mass of the gas?
The concentration of Mg2+ in seawater is 0.052 M. At what pH will 82% of the Mg2 be precipitated as the hydroxide salt? [Ksp for Mg(OH)2 = 8.9*10-12.]
A block of platinum is 6.00 cm long, 3.50 cm wide, and 4.00 cm thick has a mass of 1802g. What is the density of platinum
when you heated the hydrated compound this process starts slowly at first find out the reason behind this?compute k for
Assuming the solution has a heat capacity of 4.18 J/°C·g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
Copper II sulfate dissolveds in water to form a blue solution. What species are present in solution, i.e., what is actually swimming around in solution? write the formulas.
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