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You have to prepare a {rm pH} 4.77 buffer, and you have the following 0.10,M solutions available: formic acid, sodium formate, propionic acid, sodium propionate, phosphoric acid, and sodium dihydrogen phosphate.
Calculate the amount of heat required to completely sublime 23.0g of solid dry ice (CO2) at its sublimation temperature
Which type of bonding does Sr form upon solidification. metalic, molecular, ionic, covalent compund
Identifying an unknown hydrocarbon, Is it possible to identify what the hydrocarbon is with just knowing the volume of it (9.61 ml), the mass (7.669 g/ml), density (0.798 g/ml)?
Given the following data regarding nickel. What is the theoretical density of the metal
At 25 degrees C, what are the molar H3O+ and OH- concentrations in (e) 0.200 M NaOCl? (f) 0.0860 M CH3CH2COONa
a 365.0g sample of water,contains 23mg Au. How much gold is present in the sample in parts per million?
A bicycle tire is filled with air to a pressure of 611 kPa at a temperature of 19 degrees C. Riding the bike on a hot day increases the temperature of the tire to 58 degrees C.
A 75 mL solution of 0.030 M Ca(OH)2 is titrated with 0.035 M HCl. Calculate the pH of the mixture after 60 mL of HCl have been added.
Find the flux, J, of oil droplets through the water to the top surface. The sink is 18 cm deep, and the concentration of oil on the plate is 0.1 mol/cm3. Assume that there is no oil at the top of the sink when you start. The diffusion coefficient ..
Calculate the enthalpy change that occurs when 1.00 kg of acetone condenses at its boiling point (329.4 K). The standard enthalpy of vaporization of acetone is 29.1 kJ · mol -1 .
What volume of 3.00M HCL in liters is needed to react completely (with nothing left over)
What salt is formed in the reaction between 0.13 mol H3PO 4 and 0.26 mol KOH? 2.51 moles of a gas occupies 50.88 liters, and its density is 1.43 g/L at a particular temperature and pressure. Calculate the molar mass of the gas.
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