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Under certain circumstances, carbon dioxide, CO2(g), can be made to react with hydrogen gas, H2(g), to produce methane, CH4(g), and water vapor, H2O(g):CO2(g)+4H2(g)→CH4(g)+2H2O(g)
Question: How many moles of hydrogen gas would be needed to react with excess carbon dioxide to produce 88.1 moles of water vapor?
(please provide working out and the answer in mol)
Why are myoglobin and hemoglobin highly colored red?
How many mL of 0.250 M NaOH are needed to completely saponify 240. g of of glyceryl trioleate (triolein)?
a piston has an external pressure of 15.0 . how much work has been done if the cylinder goes from a volume of 0.150
How much energy is evolved during the reaction of 32.5 g B2H6 and 72.5 g Cl2? Given: B2H6(g) +6Cl2 (g)---->2BCl3 (g) + 6HCl (g) DH -1396kj
When bicarbonate is reacted with acid it releases CO2. How many moles of HCO3? did you start with if you collect 1.24 x 10 3 moles of CO2(g)?
Analyze the groups bonded to the carbon of interest. Every H contributes +1, and every oxygen contributes -2. An -OH group contributes (-2 + 1 = -1). Ignore carbons bonded to the carbon of interest. The sum of the oxidation states must be zero, si..
A chemist needs a pH 3.5 buffer. Should she use NaOh with formic acid ( Ka =1.8x10-4exp.) or with aceticacid ( Ka = 1.8x10-5 exp)? Why. What os the disadvantage of choosing the other acid. What is the role of NaOH
45.0 mL of 0.35 M NaOH is neutralized by 25 mL of an HCl solution. The molarity of the HCl solution is what?
Iron(III) chloride can decompose forming iron(II) chloride and chlorine gas. Write and balance the equation for the decomposition reaction.
4.00 ml of a 2.00 x 10^-2 M solution of NaSCN is diluted to 100 ml of solution, what is the molarity of SCN in the solution
Write the balanced net ionic equations for the reactions that occur in each of the given cases as. Cr2(SO4)3(aq) + 3(NH4)2CO3 (aq) = Cr2(CO3)3 ( s) + 3(NH4)2SO4 ( aq).
a student placed 17.5 g of glucose in a volumetric flask added enough water to dissolve the glucose by swirling then
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