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The maximum allowable concentration of H2S(g) in air is 20 mg per kilogram of air (20 ppm by mass). How many grams of FeS would be required to react with hydrochloric acid to produce this concentration at 1.00 atm 25 °C and in an average room measuring 12 ft X 20 ft X 8 ft? (Under these conditions, the average molar mass of air is 29.0 g/mol.)
an unknown salt is either naf nacl or naocl.when 0.050 mol of the salt is dissolved in water for form 0.500 l of
Calculate the degree of dissociation (he fraction of molecules dissociated) for the acid in this solution. (You may assume that the mean ionic activity coefficient has a value of 1). (c) From the degree of dissociation, determine the acidity const..
a chemical reaction takes place in a container of cross-sectional area 100 cm2. as a result of the reaction a priston
Calculate the partial pressure (in atm) of HBr at equilibrium when 5.00 atm of CH3Br and 5.00 atm of H2O react at 1000 K according to the following chemical equation
seperate two compounds efficiently, what alternatives would one consider to effect clean separation by distillation?
A solution of ammonia and water contains 1.50×1025 water molecules and 5.50×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
Compound A (C11H16O) has a band in the IR spectrum at 3450 cm%u20131 (strong, broad) and does not react with pyridinium chlorochromate (PCC) in CH2Cl2
an antacid, contains CaCO3. If Tums is added to 20.0mL of 0.400 M HCl solution, how many grams of CO2 gas are produced?
water at 20 degrees celsius is flowing with velocity of 0.5 ms between two parallel flat plates placed 1 cm apart.
What is the enthalpy change when 100g of water at 50degrees celsius turns into ice at -30 degrees celsius. Specific heat: Ice= 2.09 J/g * K, Water= 4.18 J/g * K, Steam= 1.84 J/g * K Water ?Hfusion= 6.01 KJ/mol and Hvaporization= 40.67 KJ/mol
An NaOH solution contains 2.6 mol of NaOH, and its concentration is 1.3 M. What is its volume?
calculate the heat of enthalpy for the reactionpcl5g rarr pcl3g cl2guse the information below.p4s 6cl2g rarr 4pcl3g
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