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Part A Carbonyl fluoride, COF2 , is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride, CF4 via the reaction: 2COF2 --> <-- CO2+CF4 ... KC=5.70 If only COF2 is present initially at a concentration of 2.00 M , what concentration of COF2 remains at equilibrium? Express the molar expression numerically
Calculate what quantity of potassium chlorate that has molecular weight of 122.5 needed to form 33.6 litres of oxygen? Express your answer in grams and assume that temperature and pressue will be in normal condition?
Litre of white gas, and density of the gas is 0.710 g/cm 3 . Calculate the mass of the fuel and express your answer in kgs?
Determine what was the % of excess air used? If The reactant entered at 93 degrees Celsius and
If 18.5 mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentration of the ammonia.
A 350.0 gram sample of copper is initially at 25.0 °C. It absorbs 12.50 kJ of heat from its surroundings. What is its final temperature, to the nearest tenth of a degree?
The density of mercury is 13.595 g cm -3 . What will be this value in SI units? Give the SI units and their symbols for the following physical quantities:
Determine how much dolomitic lime(is an anhydrous carbonate mineral composed of calcium magnesium carbonate CaMg(CO 3 ) 2 ) is required to apply to raise the pH to 7.0?
What is the procedure for the extractions (to MAXIMIZE THE YIELD) and volumes? (i.e. How much water, NaCl, sodium bicarbonate and in what order)?
Compute the difference in the ionization energies for the 1H 2H atoms(The ionization energy is the energy of the transition from the n=1 to the n=infinity energy levels for the hydrogen atom. )?
The solution density = 1.013 g/mL and suppose that the density of pure water =1.00 g/mL. Determine the molality of this solution?
Portable heater transfers 255 W to 5.5 L water, where 1 W = 1J/s. How many minutes will it take for the heater to heat 5.5 L water from 25 degrees C to 42 degrees C? Assume water has density of 1.0 g/mL
Granite rock has a specific heat capacity of 0.80 J·°C-1·g-1. A 15 g rock was warmed by 202 J of energy from sunlight. What was the increase in temperature of the rock (in °C)?
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