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You take an unknown solution and measure 1ML of it into a flask. You dilute it with 25mL of water and 10mL of H2SO4. You titrate the solution with 19.80 mL of KMnO4. The (MnO4)- is reduced to (Mn) 2+ by the unknown solution.
a) What is the equivalent weight of (MnO4)- for the experiment?
If a 2.743g sample of MgSO4.7H2O were heated strongly,what would be the expected mass of the cooled dehydrated salt
The following reaction equation depicts the reaction between hydrazine (N2H4) and dinitrogen textroxide (N2O4) to form diatomic nitrogen and water vapor.
Find out the Kb of ammonia if the pH of a buffer formed by mixing 50.0 mL of 1.00 M NH 3 and 50.0 mL of 1.00 M ammonium nitrate?
Write the balanced reaction for the complete combustion f octane (C8H18) and then determine how many moles of oxygen it would require to burn 240.00 moles of octane? 2 350.00 grams of octane?
STP corresponded to conditions of "standard" temperature (T=0°C) and standard pressure (p= 1 atm). At STP, 1 L of Br2 reacts totally with 3 L of F2 to form 2 L of a product. What is the formula of the product?
To eliminate heating the bodies of water surrounding the power plant, the evaporation of the coolant water is what cools the steam; the water vapor generated by this evaporation is released to the atmosphere
When 1.6768 g of an organic iron compound containing, Fe, C, H and O was burned in O2, 3.1363 g of CO2 and 0.89758 g of H2O were produced. What is the mass percent of hydrogen in the compound?
Aluminum metal shavings (3.200g) are placed in 60.00 mL of (6.00 M hydrochloric acid. 1.00 L of hydrogen gas is collected in a buret over at 20 degress celsius and 1 atm. P(H2O)=17.5 torr.
Calculate the number of grams of urea that must be added to 150 g water to give solution whose vapor pressure is 2.5 mmHg less than that of pure water at 40 degrees C
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.
Which of the following statements, concerning equal volumes of the gases dinitrogen monoxide, N2O,and propane, C3H8, at the same temp and pressure is incorrect.
predict the formula of a compound that presumably would result from the reaction between magnesium and topaline, and name the compound.
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