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commercial grade HCL solutions are typically 39.0% (by mass) HCL in water. Determine the molality and molarity of the HCL, if the solution has a density of 1.20 g/ml.
burning 0.43g of the compound X (only contain C,H,O)in excess oxygen gives 1.10g of CO2 and 0.45g of H2O. what is the empirical formula?
We have to measure the volume of O2 gas produced from the mixture of H2O2 and bleach (NaOCl). Based on the moles of reactants used and the volume of oxygen gas, how do determine the stoichiometry of the chemical equation?
A 486 mL sample of water was cooled from 50.0°C to 10.0°C. Assuming a specific heat of 4.184 J/K g and a density of 1.00 g/mL, find the amount of heat transferred from the water to the surroundings.
Stishovite is a high pressure form of SiO2 found in meteorite craters. While normal SiO2 has the quartz structure, in which each Si is coordinated by four O atoms
SO2 present in air can be analyzed by titraion with permangante ions, as described in the equation:
A gas originally at 30.0 C and 1.00 atm pressure in a 3.9L flask is cooled at constant pressure until the temperature is 11C. The new volume of the gas is _______ L.
Sketch a titration curve of what the titration of the dry acid vs. sodium hydroxide might look like and explain the diagram.
Starting with standard reduction potentials calculate the values of e cell and delta g of the following reactions:
how many grams of NO are required to produce 145 g of N2 in the following reaction? 4NH3+6NO-- 5N2+6H2O
prepared in good yield as the exclusive product of hydration of an alkyne with water, SO4 and Hg to form ketone
what is the maximum number of grams of [Co(NH3)6]Cl3 that can be produced?
What is the concentration of dissolved O2 in blood (or water) at this partial pressure and a normal body temperature of 37C? The solubility of O2 in water at 37C and 1atm partial pressure is 1.93x10^-3 mol/L?
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