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Problem- 1CaC 2 (s)+2H 2 O(l)?1C 2 H 2 (g)+1Ca(OH) 2 (s)
If the acetylene were burned to form water and carbon dioxide, how many kilojoules of energy would be produced from the complete reaction of 23g of calcium carbide?
Any expert is able to provide answer for this problem in very short time
What is the molality of ethylene glycol in an engine's cooling system to ensure the solution doent freeze in a "normal" winter. (minimun temperature of -10C)
Determine the value of the solubility-product constant if solubility of T3U2 =4.24× 10-20 mol/L.?
Which solution behaves more ideally, a 5.0% by weight NaOH (aq) solution (b.p. = 102 ºC) or a 50. % NaOH (aq) solution (b.p. = 140. ºC) Support your answer with calculations (hint: what are the theoretical boiling points for these solutions).
Problem- table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 3.50-g sample is burned, and 3.20 g of CO2(g) is produced. What was the mass percentage of the table salt in the mixture
The mass spectrum of a compound that contains two bromine atoms gives isotope peaks with relative intensities of 1:2:1 for the M, M+2 and M+4 peaks, respectively. Explain why.
The cell potential of the following electrochemical cell depends on the pH of the solution in the anode half-cell:Pt(s)|H2(g,1atm)|H+(aq,?M)||Cu2+(aq,1.0M)|Cu(s). What is the pH of the solution if Ecell is 350mV
Which one of the following derivatives of ethane has the highest boiling point?
why must the Meltemp apparatus cool dwon to around 40 C between measurments? 5)why you expect ionic solids to have higher melting point than molecular solids?
The pH in the stomach of a certain animal is 3.8. This means that the hydrogen ion concentration in the stomach
What is the pH of a solution that is 0.75M in sodium acetate and 0.5M in acetic acid (Ka for acetic acid is 1.85 * 10^-5
question a gas is compressed at a constant pressure of 0.270 atm from a volume of 8.00 l to 5.00 l. in the process 400
The following equilibrium concentrations were measured at 800 K:[SO2]=3.0*10^-3M; [O2]=3.5*10^-3M; [SO3]=5.0*10^-2M. Calculate the equilibrium constant at 800K for each of the following reactions.
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