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400 cm3 of glycerol, C3H8O3 (density=1.26 g cm-3) is added to a kilogram of water. What is the mole fraction C3H8O3 in the solution?
1. How many CO2 molecules are needed to produce 1 glucose molecule (in photosynthesis)? 2. How many moles of oxygen atoms are in 1 mole of calcium phosphate?
You have 47.2 mL of a solution of copper(II) chloride (CuCl2?). You need to determine the concentration of Cu2+ in the solution gravimetrically.
A precipitate resulted when the solution was treated with 6M sodium hydroxide. The precipitate dissolved in ammonia, giving a royal blue solution
Complete and balance the following if a reaction occurs. Write your answer as net ionic equation and include physical states of all compounds (including for water).
The experimental value of nylon 6,10 is 2.160 grams. I need to calculate the theoretical mass of nylon 6,10, in order to find out the percent yield.
If you dissolve 4 aspirin tablets in a 340mL glass of water, what is the pH of the solution and the percent dissociation?
If the metal crystallizes in a body-centered cubic structure, which choice is closest to the atomic mass?
Calculate the volume (in mL) of He collected at STP when 3.60 g of pure 226Ra is stored in a closed container for 135 years.
Sugar (82.00 grams; molar mass 342.3 g/mol) was dissolved in water. The freezing point of the solution was determined to be -3.60 deg C. How many grams of water were used to make the solution?
100 moles of C4H10 undergoes complete combustion in excess air. First, show the degree of freedom analysis for this process. Then calculate the composition (mole fractions) of the stack gas on a wet basis for the following three cases: (1) theoret..
CS2(l) + 3 O2(g) -→ CO2(g) + 2 SO2(g) . If 1.18 mol of CS2 is combined with 1.55 mol of O2, identify the limiting reactant.
The molar mass of a protein is determined from a measurement of the osmotic pressure. If 0.01 grams of the protein is dissolved in 1 ml. and osmotic pressure
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