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Question: The International Union of Pure and Applied Chemistry (IUPAC) has adopted 273.15 K and 1 bar as standard temperature and pressure (STP) for gases. Under these conditions, the molar volume of ideal gas is 22.71 L. What is the molar volume of ideal gas at 250.0 K and 0.7 bar?
A fuel gas containing 90% methane (CH4), 5% acetylene(C2H2) and 5% butane gas(C4H10) by volume is fed to a furnace in which it is completely burned with 10% excess air. The fuel gas flow rate is 1000 m^3/h at 15 degrees Celcius and 250 kPa.
To determine its acid-dissociation constant, a student dissolved 2.00 g of aspirin in 0.600 L of water and measured the pH. What was the K a value calculated by the student if the pH of the solution was 2.60
doctors commonly used a syringe for drawing blood this syringe commonly has an opening with a 0.514mm of diameter.
you need 30microgramsml of kanamycin in 1 liter of lb culture. you have a kanamycin stock of 100mgsml. how much kan do
A compound of a transition metal and iodine is 65.1% metal by mass. How many grams of iodine is present in 859 g of this compound?
Determine the wt./vol. % of Fluoride in toothpaste if the calculated molarity is 0.002491 M. The actual value is 0.15% so it should be somewhat close to this value. The density is 1.34 g/ml
what is the theoretical yield of carbon dioxide when 56.0 g of methane is burned in a excess of oxygen, according to the equation CH4 2 )2 ->CO2 ,2H2o.
When measuring the boiling point of a compound, why is the micro boiling point determined at the point when the last bubble has left the bottom of the bell and the liquid begins to rise in the bell
How many moles of gas are contained in a human breath that occupies 0.45 L and has pressure of 747
How many mL of a .244 M HCL solution will react with .0235 mole of MgO? The reaction of MgO and HCl is given below.
Explain what the tems endo and exo mean with respect to the stereochemistry of the products formed in the diels-alder reaction using maleic acid and cyclopentadiene.
An aqueous solution containing 5.85g of an optically pure compound was diluted to 800.0mL with water and placed in a polarimeter tube 10.0cm long. The measured rotation was -5.93degrees at 25degrees C. Calculate the specific rotation of the compou..
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