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c) If 2.22g of O2 is produced, what is the percent yield of the reaction?
Based on Table N, determine the time required for an original 100.-milligram sample of P-32 to decay until only 25 milligrams of the sample remain unchanged.
______ days
Ammonia reacts with oxygen gas to produce water and nitrogen gas. what mass of oxygen gas must be used to react with and completely use up 19 g of ammonia. (balanced equation needed)
Sodium hydroxide reacts with carbonic acid to produce water and sodium carbonate. what mass of sodium carbonate will be produced from 60.0 of sodium hydroxide. (balanced equation needed)
When 6.5 mol of potassium chlorate breaks down into the simpler compound potassium chloride and oxygen gas, how many moles of oxygen would be produced. (need balanced equation)
Hydrogen peroxide decomposes into water and oxygen gas. how many moles of hydrogen peroxide are needed to produce 1.5 mol of oxygen (balenced equation needed)
NH3 /NH4Cl buffer of pH of 8.58 needs to be prepared. How many grams of NH4Cl needs to be added to a 1.0 L of 0.400 mol/l of NH3 solution to obtain the pH 8.58 buffer. ( Kb of NH3 = 1.8 × 10-5 )
A 5 liter solution contains 4 mol of substance A and 3 mol of substance B. What will be the concentration of these substances in 5 seconds if the average reaction rate 4A + B = 2C is 0.05 mol / l ∙ s?
Solve with the correct number of sig figs...
620+32.22-16.5
N2(g) + 3H2(g)
→ 2NH3(g)
and at
If AH = -92.243 and 45= -0.1987 kilk,
what is AG for the reaction at 475°C
56 ? provide the answer ich ks. In each case, is the
reaction spontaneous?
