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Suppose an astronaut has landed on Mars. Fully equipped, the astronaut has a mass of 125 kg, and when the astronaut gets on a scale, the reading is 49 N. What is the acceleration due to gravity on Mars?
The combustion of 45.0 g of methane (natural gas) releases 2498 kJ of heat energy. How much energy in kilocalories kcal would combustion of 0.670oz of methane release.
an empty vial weights 55.32 g.a if the vial weights 185.56 g when filled with liquid mercury d13.53 gcm3 what is its
Problem- A certain volume of a 0.50M solution contains 4.6g of a salt. What mass of the salt is present in the same volume of a 2.2M solution?
a 1.00 l vessel at 0c contains 0.21 mol n2 1.3 mol h2 and 1.0 mol ch4. calculate the pressure of the gas mixture and
Adipic Acid (H2C6H8O4) is a carboxylic acid containing compound of industrial importance, notably due to its use during fabrication of nylon. Adipic acid can be titrated using NaOh by the following reaction
Cobalt Chloride in varying concentrations Spectrophotometer set to a Wavelength = 510 nm % Transmission = experiment #1 = 31.62, experiment #2 = 89.13 and experiment #3 = 98.86
The formula of the precipitate is Cu(IO3)2. A saturated solution of this substance was made in 0.01 M KlO3. The copper concentration was found to be 0.0012M. Determine the [IO3^-] and the Ksp of the substance.
If 10g of na2s2o3 are reacted with 10g of agbr, what would be the maximum yield of nabr and which is the limiting reagent, if any?
If 22.8 mL of NO2 gas is completely converted to N2O4 gas under the same conditions, what volume will the N2O4 occupy?
a piston-cylinder device containing water undergoes a thermodynamic cycle consisting of the following three
The standard molar enthalpy and entropy of the denaturation of a certain protein are 512 kj/mol and 1.60 kj/K mol.comment on the signs and magnitude of these quantities , and calculates the temperature at which the process favors the denatured sta..
Mass spectrometry determined the molecular mass to be 166 g/mol. Finally, a 0.1680 g sample was titrated to the end point with 16.18 mL of 0.1250 M NaOH. What is the molecular formula for the acid. Is the acid mono-, di-, or triprotic.
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