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Calculate the pH of the following solutions: 1.) 0.100 moles of HF and 0.120 moles of NaF in a 1.00 liter solution.--- 2.) a solution that has 0.10M NH4NO3 and 0.10 M NH3.--- 3.)0.100 moles of HF and 0.200 moles of NaCN in 1.00 liter solution.
Ka (HF)=7.1 x 10-4; Kb (NH3)=1.8 x 10-5
BUild on this by writing out of a chemical equation for the reaction you expect 2 propanol will undergo. Write only the organic reactions and products and write them as structural formula.
If it takes 50.0 mL of 0.0250 M K2Cr2O7 to titrate 30.0 mL of a solution containing Fe2+, what is the molar concentration of Fe2+?
Calculate the intermolecular collision frequency and the mean free path in a sample of helium gas with a volume of 5.0 L at 27 degrees Celsius and 3.0 atm.
The EPA limit for lead in the water supply is 15 parts per billion by mass. Calculate the number of lead ions present in 1.00kg of water that is at the EPA limit for lead.
From the reaction of 0.1000 g of solid granular tin with 0.1000 g of solid iodine in 3.0 mL of solvent methylcyclohexane (density = 0.770 g/mL) was isolated 0.0740 g of an iodide of tin as the sole product of the reaction.
Ammonia reacts with oxygen gas to produce water and nitrogen gas. What mass of oxygen gas must be used to react with 19g of ammonia
The density of the resulting solution is 1.12g/mol. What is the molarity of the solution?
A 35.0 mL sample of 0.150 M acetic acid (CH3COOH) is titrated with 0.150 M NaOH solution. Calculate the pH after the following volumes of base have been added.
When 20.0 grams of an unknown compound are dissolved in 500. grams of benzene, the freezing point of the resulting solution is 3.77°C. The freezing point of pure benzene is 5.48°C, and Kf for benzene is 5.12°C/m. What is the molecular weight of th..
To cool a volume of water from 176° K to 100° K, 7.9 x 104 J of heat energy must be removed. What is the volume of water that was cooled?
How many grams of carbon monoxide (CO) are produced from a mixture of 70.0g SiO2 and 50.0 g of carbon. The balance ewaution is given below.
When considering the Ideal Gas equation of state, the molecules in the gas are assumed to have no interaction with each other at all. In real gases, however, attractive intermolecular forces exist between the molecules in the gas
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