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Determine the pH and the percentage of fully protonated weak acid/base for each of the solutions listed below:a) 85mM 1,6-hexanedioic acidb) 0.029M disodium arsenate (salt of arsenic acid)c) 40mL of 0.018M citric acid mixed with 5mL of 0.15mL of 0.15M Ca(OH)2d) 32mL of 0.6M sodium bicarbonate mixed with 130mL of 0.21M lithium carbonatee) 18mM cyclohexylamine hydrochloride
If a gas occupies 625 mL at 0 Celsius and 760 torr pressure, what will its volume be at 373 degree C and 1520 torr pressure? How would you describe how to separate a mixture of oil, sand, and saltwater.
Calculate the molar concentration of uncomplexed Zn2+ in a solution that contains 0.20 mole of Zn(NH3)42+ per liter and 0.0116 M NH3 at equilibrium.
calculate how much CaCN2 is required to form 12.6 moles of ammonia? Given that the percent yield is 65.8%?
Four atoms of iron (Fe) are to be combined with three molecules of oxygen (O2). How many total iron atoms and oxygen molecules will be combined during the formation of Fe3O4?
If the temperature of the water in your reaction bowl is 23 C, what is the temperature of the hydrogen gas.
An unknown compound contains only carbon, hydrogen, and oxygen. Combustion of 4.00 g of this compound produced 5.87 g of carbon dioxide and 2.40 g of water.
Twenty grams of a solute are added to 100g of water at 25C. the vapor pressure of pure water is 23.76 mmHg, the vapor pressure of the solution is 22.41 torr.
The atomic weight of a newly discovered el-ement is 10.600 amu. It has two naturally occuring isotopes. One has a mass of 10.000 gms and a natural abundance of 70.000%. What is the isotopic mass of the other isotope?
A 30.5-g sample of an alloy at 93.0°C is placed into 50.0 g of water at 22.0°C in an insulated coffee cup with a heat capacity of 9.2 J/K.
Find the temperature and the pressure of a gas inside the cylinder - what was the initial pressure of the gas in the cylinder?
Draw the possible chair forms of cis and trans 1-isopropyl-3-methylcyclohexane. Are the two forms identical, enantiomeric, or diastereomeric?
Gold has a density of 19.3 g/cm3. How many pounds does a gold sphere weigh if it has a diameter of 5.20 inches?
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