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Calculate the molarity (M) of HCl used in the titration of a 0.2239g sample of sodium carbonate that required 39.01mL of the titrant (HCl) to reach the second equivalence point.
used as a fixer in the field of photography. Calculate the percentage composition, by mass, of each element in sodium thiosulphate.
One isotope has a mass of 68.926 amu and a second isotope with a mass of 70.925 amu. Based on these data, what is the percent composition of the first isotope?
The Ksp of CuI is 1.1X10^-12. Find Ecell for the cell: Cu(s)|I^-(aq)(1.0M)||Cu^+(aq)(1.0)M|Cu(s)
In the reaction of lithium, li with nitrogen n2 three lithium atoms react with on nitrogen atom elements lose one electron, atoms of the other element gain three electrons
Problem- Use the thermodynamic data in Appendix B to calculate the standard cell potential and the equilibrium constant at 25°C for the cell reaction in a direct methanol fuel cell
What will be the resultant pressure when the stopcock is opened?
What is the concentration of A^3- ions at equilibrium for a 0.10 M solution of a hypothetical triprotic acid H3A, with Ka1 = 6.0 x 10^-3, Ka2 = 2.0 x 10^-8, Ka3 = 1.0 x 10^-14 ?
Given a column of air with a pressure of 1.57 x 10^5 Pa and an area of 1.12 m^2 and given that the acceleration due to gravity is 9.8 m/s^2, what is the mass of this column
If I inhale 3.5 liters of gas at a temperature of 190 C and it heats to a temperature of 580 C in my lungs, what is the new volume of the gas? If 1.50 L of a gas is at standard temperature and pressure is compressed to 556 mL, what is the new p..
Carbon-14 is a radioactive nucleus with a half-life of 5760 years. Living matter exchanges carbon with its surrounding (for example, through CO2) so that a constant level of 14C is maintained, corresponding to 15.3 decay events per minute
What are the signs of Hvap and Svap for water. Do you expect the signs of these quantities to be the same for other liquids. Explain.
Problem- A volume of 70.0mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 12.7mL of 1.50 M H2SO4 was needed
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