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1.What is the maximum amount of useful work that could theoretically be obtained at 25 degrees celsius and 1 bar from the combustion of 48g of natural gas,CH4(g), to give CO2(g) and H2O(g)?
2.The equilibrium below is established when a gaseous mixture of 0.05 mol of hydrogen and 0.05 mol of iodine are placed in a closed system of volume 500ml. Given the equilibrium constant,Kc=49.5, at the experimental temperature, calculate the equilibrium concentrations of H2(g),I2(g), and HI(g).
H2(g)+I2(g) === 2HI(g)
A 309 mL sample of unknown HCl solution reacts completely with Na_2CO_3 to form 10.1 g CO_2. What was the concentration of the HCl solution?
How much heat is required to warm 223 g of ice from -46.3°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
Molten carbonate fuel cells fueled with H2 convert as much as 60% of the free energy relased by the formation of water from H2 and O2 into eletrical energy
Consider the titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 3.0 10-6) by 0.200 M HNO3. Calculate the pH of the resulting solution after the following volumes of HNO3 have been added.
What is the specific heat of lead if it takes 97.5J to raise the temperature of a 75.0g block by 10.1 degress celcius?
Question- What quantity of 6.0M aqueous sulfuric acid (in mL) would be required to neutralize 63 mL of 2.0M aqueous potassium hydroxide
0.118 kg block is suspended from a spring. When a small pebble of mass 30 g is placed on the block, the spring stretches an additional 5.1 cm. With the pebble on the block, the block oscillates with an amplitude of 12cm. Find the maximum amplitude of..
What volume of a 15% by mass NaOH, which its density is 1.116g/mL, should be used to make 5.40L of an NaOH solution with a pH of 10.2
explain why covalent bonds are formed when non metals from the right side of the periodic table bond with each other.
While a single alkene monomer, such as ethylene, is polymerized, the product is a homopolymer. If a mixture of two alkene monomers is polymerized, but a copolymer often results. The subsequent structure represents a segment of a copolymer.
the diprotic acid H2B is being titrated against .04M NaOH. H2B has 40mL, .2M concentration, Ka1+2.5*10^-3, Ka2=3*10^-10. What are the concentrations of each species in the following pts in the titration
a gaseous mixture of and contains 34.8 nitrogen by mass. what is the partial pressure of oxygen in the mixture if the
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