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How many grams of CaCl2 are needed to make 638.2 grams of a solution that is 28.5% (m/m) calcium chloride in water?
The solution density if 1.001g/mL. Calculate the Ca2+ and Mg2+, molarity, molality, mol fraction, and the PPM. Please show examples.
how many kilograms does it take to sink a model barge with the following measurements in a calm pool; 300.00 cm * 25.00 cm * 68.00 cm with a mass of 850.0 grams
A 100g sample of water at 27oC is poured into a 76.2g sample of water at 89oC. What will be the final temperature.
If a 220 piece of gold (density =19.32 ) is hammered into a sheet measuring 2.41.0 , what is the average thickness of the sheet in meters?
Give the products (if any) expected from the treatment of each of the following compounds with ozone followed by aqueous hydrogen peroxide. Do not draw any byproducts.
Set up the problem by listing the reactions unknowns equations and knowns b.) Calculate the concentrations of all chemical species present in the solution, and the pH.
Identify each of the following as a homogeneous or heterogeneous equilibrium: a)CO(g)+H2(g) C(s)+H2O(g). b)NH4Cl(s) NH3(g)+HCl(g). c)CS2(g)+4H2(g) CH4(g)+2H2S(g). d)Br2(g)+Cl2(g) 2BrCl(g).
compute the pH at the temperature of twenty five degrees Celsius of a solution combined by adding 50 mL of 1.60 M sodium hydroxide solution
what is the difference between oxy-mercuration, hydroboration, and acid hydrogenation
Write the half reactions and the overall cell reaction for each of the following voltaic cells: a)Al(s)/Al^3+(aq)//Cd^2+(aq)/Cd(s) b)Sn(s)/Sn^2+(aq)//Fe^3+(aq),Fe^2+(aq)/C (graphite)
Vanillin, the dominant flavoring in vanilla, contains C, H, and O. When 1.05 g of this substance is completely combusted, 2.43 g of CO2 and 0.50 g of H20 are produced. What is the empirical formula of vanillin?
You wish to extract an organic compound from an aqueous phase into an organic layer (3 to 6 extractions with a separatory funnel). With regard to minimizing the number of transfer steps,
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