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a sample of neon is collected by displacing 182 ml of water. The pressures of the gas and the atmosphere are equalized, using the method described in the decomposition of potassium chlorate. The atmospheric pressure is 738 mmhg. The temperature of the water and that of the gas are identical at 26oC. how many moles of helium have been evolved.
Write a structural formula for two different isomers of [Co(H2O)2(en)2]Cl2. Indicate the oxidation state of the Co in each case.
If 4.00 g of the unknown compound contained 0.133 mol of C and 0.267 mol of H, how many moles of oxygen, O, were in the sample?
What is the molality of a solution in which 25 g of sodium chloride is dissolved in 2.0 kg of water
What pressure is exerted by 0.625-mole of a gas in a 45.4-L container at -24.0°C?
A sample of h20 with a mass of 46.0 grams has a temperature of -58 degrees celcius. how many joules of energy are necessary to heat the steam from 100 degrees celsius to 114 degrees celcius.
Formulas and constants to remember R = 1.98 cal/degree-mole ; Delta G0 = -RT lnKeq. T = 298 degrees K. How much NADH will be produced in the above reaction
What is the theoretical yield of SO 3 produced by the quantities described in Part A and How many Oxygen molecules are required to react with 7.82g of S?
Ammonium hydrogen sulfide decomposes on heating NH4HS(s) NH3(g) + H2S(g) If Kp for this reaction is 0.11 at 298 kelvins (with pressures in atmospheres)
The J=0 to J=1 transition for carbon monoxide (12C16O) occurs at 1.153 X 10^5 MHz. Calculate the bond length of carbon monoxide.
Calculate the pH at the equivalence point for the titration of a solution containing 1250.0 mg of hilariamine (MW = 104.75 g/mol, Kb = 7.1×10-4) with 0.1000MHCl solution.
The mass of the tablet was 0.162 g. What percent of calcium carbonate was in the tablet?
neon has a volume of 445 mL when it is at a pressure of 719 mmHg. What will be the volume when the pressure is increased to 1122 mmHg
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