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Write out steps necessary to make ch3o=cch2ch3 starting with ethyne and any other chemicals
Unfortunately, a mixup in the laboratory prevented an immediate analysis, and it was not until 17.0 days later that a measurement on the blood was made.
The mass of a cube of iron is 379 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?
A 750-mL sample of nitrogen was collected by displacement of water from a container at 30°C and an atmospheric pressure of 742 Torr. If the vapor pressure of water at 30°C is 31.8 Torr, calculate the number of moles of nitrogen gas produced.
Calculate the volume of 0.500M hydrochloric solution that must be added to 20.5g of sodium ethanoate to make 500cm3 a buffer of pH4.50.The pKa value of ethanoate acid is 4.76.
system and show how the pH will change upon addition of 10.0 mL each of ) 0.10 M of HCl or NaOH. Use any combination of weak acid and its salt OR weak base or its salt.
For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction 2N(g) + 3H2(g) 2NH3(g)
What is the pH of a solution that mixes 30mL of 0.01M CH3COOH with 30mL 0.0075M NaCH3CO2? (Assume the volumes are additive
Calculate the molecular weight of the compound? Given that Kf=1.86 and the compound in not ionic.
How long will it take for 75% of nitrogen dioxide to decompose if the initial concentration of nitrogen dioxide is 1.33M
The mixture was analyzed spectrophotometrically and found to be 1.84*10^-3 M in I3-. Calculate the molarity of I3- in the original sample
The average molecular speed in a sample of CH4 gas is 641 m/s at 311 K. The average molecular speed in a sample of He gas is ________ m/s at the same temperature.
which is connected to 2 oxygen atoms, one with is sp^3 and one sp^2 hybridized and so both oxygens have 2 lone pairs of electrons. All other single bonds consist of hydrogen.
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