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Water gas a mixture of h2 and co2 is a duel made by reacting steam with red hot coke ( a by product of coal distillation):
H2O(g) + C(s) = CO(g) +H2(g)
Using a table of thermodynamic data, estimate the temperature at which the reaction begins to favor the formation of products. (celsius)
What is the theoretical yield of bismuth when 346 g of Bi2O3 reacts with excess carbon as shown below?
burning 480 cm3 of propane measured at r.t.p,caused the temperture of 250 cm3 of water to increase by 42.5 celsius. calculate the heat of combustion of propane.
The difference in the mass of 100 moles each of sodium atoms and sodium ions is 5>48002 g. Compute the mass of an electron.
A 7.45-L container holds a mixture of two gases at 35 °C. The partial pressures of gas A and gas B, respectively, are 0.368 atm and 0.852 atm.
Consider all possible transitions from the initial state to the final state of the hydrogen atom described above. Calculate all possible values of the wavelength of the emitted radiation.
A chemist prepares a solution by dissolving 4.168 g of NaNO3 in enough water to make 200 mL of solution. What molar concentration of sodium nitrate should appear on the label.
If 27mL of 6.0 M sulfuric acid was spilled, what is the minimum mass of sodium bicarbonate that must be added to the spill to neutralize the acid?
Which of the following is a buffer?
Explain briefly that how HCl could test for limestone's presence , use the balanced chemical equation for this and then describe specific reaction that takes place?
How much 1.0 M NaOH must be added to a 100 ml of 10 mM H3PO4 to raise the pH of the solution to 7.0? B) If 2 volumes of 2.0 M Na2HPO4 are added to 1 volume of 0.1 M H3PO4, what is the pH of the resulting phosphate buffer?
what is the lewis structure of C2H2Br2, also is it polar or non polar, are there any resonance structures or isomers?
Suppose that 1.08 g of rubbing alcohol (C3H8O) evaporates from a 75.0 g aluminum block.If the aluminum block is initially at 25 C, what is the final temperature of the block
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