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Given the following balanced chemical equation, answer the following questions:
3CaCl2 (aq) + 2 Na3PO4 (aq) → Ca3(PO4)2 (s) + 6 NaCl (aq) a. How many mol of Ca3(PO4)2 are formed from 10.5 mol CaCl2?
b. How many mol of Ca3(PO4)2 are formed from 450.0 g CaCl2?
c. How many grams of Ca3(PO4)2are formed when 450.0 g NaCl are formed in the reaction?
d. How many grams of Na3PO4 must be provided to the reaction to form 800.0 g Ca3(PO4)2
what mass of Na2SO4 is needed to prepare 350. ml of a solution having a sodium ion concentration of 0.125 M.
Describe the use of light absorbing reagents in amino acid chromatography. What are these reagents used for? Name two reagents that are commonly used and describe how they react with amino acids.
What are the values of [H+], [H2PO3-], and [HPO32-] in a 3.0 M solution of H3PO3? What is the pH of the solution?
Write a balanced equation for the reaction of 2-octanol and surphuric acid. what products are formed?
Compound A, C6H10O2, is optically active. It dissolves slowly in aqueous NaOH, consuming one equivalent of base. When the solution is acidified, A is slowly regenerated.
Calculate the [CH3CO2H] ionized in solution for 0.1M acetic acid knowing that ph= 2.9 [H+]= 1.26 x 10^-3 M , [OH-]= 7.94 x 10^-12 M
When you calculated K in the rate equation for the reaction of KMnO4 solution and H2C2)4 solution, you assumed k had the same value under the condition of determination 1,2,3 A. What assumption did you make about the reaction of KMnO4 solution and..
Calculate the potential of a platinum electrode immeresed in solution buffered to a pH of 6.50 and saturated with H2
What mass of formaldehyde gas must be released from building materials to produce a concentration of 50 ppm of the gas in a room with dimensions of 4m*5m*2m?
How much heat (in ) is required to warm 12.0 g of ice, initially at -11.0 degrees C, to steam at 111.0 degrees C? The heat capacity of ice is 2.09 and that of steam is 2.01 J/gC.
The calorimeter temperature rises 0.42°C. The calorimeter and water have a combined heat capacity of 32.16 kJ/K. Calculate the heat of formation of ammonia, ?H°f, in kJ/mol. The formation reaction for ammonia is: 0.5N2(g) + 1.5H2(g) ? NH3(g).
what happened when the isolated fraction, floating on top of the solution,
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