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The drink, which initially consisted of a solution that can be approximated as 100 g of solid ice at 0 C, 100 g of water at 0 C of water and 200 g of ethyl alcohol at 0 C, falls into the warm 29 C w
Determine the magnitude of the applied impulse, and determine as well the impulse of the reaction on the rod at the point of support.
A 125 volt 25 cycle source is joined to a series circuit comprising of a 30 ohm resistor and a 159 μf capacitor. Determine the net impedance and the current in the circuit?
Determine the numbers of grams of Pb(NO3)2 would you need to add to 75 mL of a 2.5 M NaCl solution to precipitate out all of the Cl-?
If an adiabatic compression of the gas from 1 atm to 3 atm results in a final temperature of 311 K, determine the maximum possible initial temperature for one mole of an ideal monatomic gas.
Determine the emf of a cell fuelled by the hydrogen and oxygen when a fuel cell develops an electric potential from the chemical reaction between reagents supplied from an outside source.
Determine the average atomic mass of M, when M2S3 is heated in the air, it is converted to MO2 and a 4.000g sample of M2S3 shows a decrease of mass of .277g when it is heated in the air.
Determine the maximum number of Cs+ ions that can be formed per joule of energy absorbed by a sample of gaseous Cs atoms?
Determine the melting point of ice under a pressure of 50 bar. Suppose that of liquid water is 1.00 g/cm3 and the density of ice under these conditions is approximately 0.92 g/cm3.
Calculate the rate constant for this reaction if a solution containing 0.2 M CH3CH2Cl and 0.05 M NaSCN reacts to give CH3CH2SCN and NaCl with an initial rate of 5* 10-9 Ms-1.
Determine the molar mass of the acid when a 3.715g sample of a monoprotic acid was dissolved in the water. It took 17.52 mL of a 0.1459 M NaOH solution to neutralize the acid.
Determine the quantity of heat produced when 3.2 g of butane is completely combusted in air and many cigarette lighters contain liquid butane (C4H10) by using the enthalpies of formation.
If the activation energy is 104kJ/mol determine the temp in degrees Celsius at which its rate constant is 8.80x10-4, the rate constant of a first-order reaction is 4.60x10-4 at 615degrees Celsius.
Assume that a reaction takes place at 325 K and 335K when the rate constant of some reaction double with every 10 degrees rise in temperature. What must the activation energy be for the rate constan
Copper is extracted from the chalcopyrite, CuFeS, ore. Determine the numbers of kilograms of a 0.862% chalcopyrite ore will be necessary to form the .00 kg of pure copper?
The equilibrium-constant expression for a gas reaction is Write down the balanced chemical equation corresponding to this expression.
Identify the radioactive decay constant of CS-137 (1/2 life=30.07yrs).Determine the activity in units of Becquerel's and curies for a sample which is having 2x10^18 atoms.
Determine the difference in slope of the chemical potential against a temperature on either side of (a) the normal boiling point of water (b) the normal freezing point of water
You have 6 grams of molecule X in 100 mL water. The solubility of molecule X in ether is 200 g/L. The solubility of molecule X in water is 70 g/L. Determine how much of molecule X will be acquired b
If the Cu (NO3)2 solutions contains about 6gCu2+ per liter, determine the numbers of micrograms of Cu2+ion are there in one spot? In an experiment, it takes about 10microliters of solution t
If the heat released during condensation goes only to warming the iron block, determine the final temperature in Celsius of the iron black? Assume that 0.88 of water condenses on a 75.0-g block of
Calculate the atomic radius of gold if it crystallizes in a face-centered lattice and which is having a density of 19.4g/cm^3
The amount of carbon-14 remaining in the sample which weighs D is given by X(t)=D(0999879)^t where t is time in years. If tests on the fossilized skull reveal that 99.97% of the carbon-14 has decay
Explain how would you construct an MO diagram to illustrate the interaction of these three p orbitals? Explain what you might expect from the corresponding Lewis structure?
Explain how you could prove the test tubes which contain three different chemical. Three test tubes, labeled A, B, and C, contain substances with approximately the same melting points.