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Phosphorous acid, is an important compound in industry and agriculture, H3PO3(aq), is a diprotic oxyacid .determine the pH for each of the following points in the titration of 50.0 mL of a 1.5 M H3PO3(aq) with 1.5 M KOH(aq) ?
Calculate how much heat is required to added or removed to convert 100.0 g of steam at 115 0C to liquid water at 65 0C?
By Solving this problem student is able to understand how to calculate theoretical and percent yields in an experiment - determine theoretical and percent yields for this experiment.
A solution, made by dissolving 62.07 g of a nonelectrolyte in 500 g of H2O, exhibits a freezing point of -1.86 °C. Determine the molecular weight of this nonelectrolyte compound? For water Kf = 1.86 °C m-1Kb = 0.51 °C m-1
The density of mercury is 13.595 g cm -3 . What will be this value in SI units? Give the SI units and their symbols for the following physical quantities:
Multiple choice questions in Nuclear chemistry - As the temperature of a sample of a radioactive element decreases, the half-life will
A sample of 2.376 g ether (The compound known as diethyl ether [(C2H5)2O], commonly referred to as ether, contains carbon, hydrogen, and oxygen) was combusted in an oxygen rich environment to produce 2.887 g of H2O (g) and 5.643 g of CO2 (g).
Find the volume and the intermolecular force present in ammonia at STP in the following reaction and What is the intermolecular force is present in NH3(g).
Find the contact time for inactivating Gardia cysts - How much contact time would be required for inactivating Gardia cysts
To determine the molecular formula of a compound - gas was mixed with calcium chloride solution,
Calculate Gibbs free energy and determine the type of thermodynamic reaction and what type of thermodynamic reaction is shown.
determine the heat released when (ethene) CH2 CH2 reacts with hydrogen gas and form CH3CH3.If Bond enthalpies given are H H : 436 kJ/mol,C Br : 276 kJ/mol,C C : 612 kJ/mol,C C : 348 kJ/mol,C H : 412 kJ/mol;
By Solving this problem student understand about isotopic abundance and how to calculate atomic weight (average atomic mass) of an element -
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