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1) Compute the pH at the temperature of 25 0C of a solution prepared by mixing 50 mL of 1.60 M sodium hydroxide solution to 0.5 of .0850 M Furoic acid HC5H3O3.
2) How do you compute the density of Helium (He) in g/L in a stratospheric weather balloon at an altitude of ca 15,000 m; t = - 43 oC, and P = 66,000 Pa?
Compute the volume of CO 2 and water vapour produced and the volume of oxygen remaining, when 20.0 dm 3 of propane reacts with 120.0 dm 3 of oxygen. All gas volumes are measured at the same temperature and pressure.
Questions on chemical equations - Write a balanced equation for this reaction. Include the states of matter for each compound.
Find the volume of oxygen - What volume of oxygen is needed to completely combust 2.07 L of methane gas
Determine that how many moles of molecular hydrogen are used per mole of the precatalyst in order to convert it entirely to platinum metal?
Using a solution containing 0.302 grams of an antibiotic has an osmotic pressure of 8.34 mmHg At 23.6°C, 0.500 L. calculate its molecular mass.
Assuming all gases are at the same pressure and temperature, how many liters of CO2 are formed from 15.0L of CO.
A 0.5485 g solid mixture have only ferrous chloride hexahydrate and ferrous ammonium sulfate hexahydrate. dissolved in 1M sulphuric acid get oxidized to Fe3+ with hydrogen peroxide, and get precipitated with cupferron.
Complexometric titration and stoichiometry - How many grams of chloride ion were present in sample
Determine how many grams of Hydrogen are required to form 14.01grams of Ammonia and calculate how many grams of ammonia could be formed
Have you observed that when you spill water over your skin on a hot day it will cool you down but if you spill vegetable oil in place of water it will not cool you down give explanation for this difference?
Write and balance the given chemical equation and Write a balanced equation for this reaction
How much would an empty volumetric flask, (weighing 27.16 grams, has a volume of 100.4 cm3 ) weigh when filled with bromine, an element that has a density of 3.1028 g/cm3.
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