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1) What volume of 0.25 M HNO3 (aq) reacts with 4.8 ml of 0.150 M Na2CO3 (aq) when the two solutions are mixed?please show work step by step.
2)A solution of hydrogen peroxide, H2O2, Is titrated with a solution of potassium permanganate, KMnO4. The reaction is
5H2O2(aq) + 2KMnO4 (aq) ?5O2 (g) + 2MnSO4 (aq) +K2SO4 (aq) + 8H2) (l)
It requires 51.7 mL of 0.145 M KMNO4 to titrate 20.0 grams of the solution of hydrogen peroxide. What it the mass percentage of H2O2 in the solution. Please show work step by step.
A student reacted 0.22 g of zinc (Zn) with excess hydrochloric acid (HCl) to generate hydrogen gas (H2).
Under certain conditions, the formation of ammonia from nitrogen and hydrogen has an 8.12% yield. Under such conditions, how many grams of NH3 will be actually produced.
a 25 mL sample of .150 M hypochlorous acid is titrated with a .15 M NaOH solution. What is the pH after 26 mL of base is added? The Ka of hypochlorous acid is 3.0x10^8
What is the molality of a solution that contains 80.0 g Al2(SO4)3 in 625 g H2O?
the Ka of hydrazoic acid (HN3) is 1.9*10^-5 at 25 degrees C. what is the pH of a .35M aqueous solution of HN3?
Calculate the total mass of acetic acid dissolved in the solution contained in the volumetric flask (f) The mass(g) of acetic acid dissolved in the solution contained in the volumetric flask came drom the 25.00 ml vinegar sample.
write the equations involved in the following
When 1 of a fuel is burned at constant pressure, it produces 3452 of heat and does 13 of work. What is the value of delta H for the combustion of the fuel?
Benzene has a heat of vaporization of 30.72;{{rm{kJ}}}/{{rm{mol}}} and a normal boiling point of 80.1 ^circ {rm{C}}. At what temperature does benzene boil when the external pressure is 420 torr?
If 1.0*10^15 atoms of Radium produce an average of 1.373*10^4 atoms of Radium per second, how many liters of Radium, measured at STP, are produced per day by 3.5g of Radium?
4.5 L of Mg(OH)2 solution was titrated with 5.03 mL of 0.200 M HCl. Calculate the the molarity of Mg(OH)2 solution and the ksp.
A system absorbs 295 kJ of heat and the surroundings do 177 kJ of work on the system. What is the change in internal energy of the system?
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