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What volume of H2 gas (in L ), measured at 742 mmHg and 84C, is required to synthesize 25.8g of CH3OH?
Which of the following statements about free radicals is true? Free radicals are considered good because they are good oxidizing agents.
A substance has a molecular mass of 100g/mol. How many ug are in a 700mm3 volume of a 2mM solution?
What is the hydronium-ion concentration in a 0.025 M solution of carbonic acid, H2CO3? For carbonic acid,
A sample of gas with a mass of 1.58 occupies a volume of 941 at a pressure of 753 and a temperature of 16. What is the molar mass of the gas.
Calculate the partial pressure of ozone and the number of ozone molecules per liter of air if the temperature and pressure were 20.0 °C and 758 mmHg, respectively.
Sucrose and glucose are nonvolatile. What is the mole fraction of water in this solution?
hydrochloric acid was added to a 50.00 mL solution containing your sodium carbonate unknown. calculate the pH of the solution at the second equivalence point.
Classify the following solutions as saturated, unsaturated, or supersaturated, based on your graph. Note that c. and d. require you to convert from the concentrations give to g/100 g H2O before you refer to the graph.
An aqueous solution is 35 % by mass methylamine (CH3NH2) and has a density of 0.85 g/cm3. What is the pH of the resulting solution if 50 mL of this solution is diluted
0.90 g of hydrogen chloride (HCl) is dissolved in water to make 2.5 L of solution. What is the pH of the resulting hydrochloric acid solution?
Identify the carbon atom(s) in the structure shown that has (have) each of the following hybridizations.
What is the mole fraction of Kr if the partial pressure of Xe and Ar are 1.60 atm and 2.8 atm, respectively?
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