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If 9.57 moles of an ideal gas has a pressure of 2.81 atm, and a volume of 25.49 L, what is the temperature of the sample in degrees of Celsius
Na2CO3 is dissolved in approximately 25 mL of distilled water. How many grams of Na2CO3 are required to react with approximately 25 mL of 0.1 M HCl
optically pure compound was diluted to 800.0 mL with water and placed in a polarimeter tube 15.0 cm long. The measured rotation was -4.85° at 25 °C. Calculate the specific rotation of the compound
Calculate the energy released as heat when 26.83 g of Cu2O(s) undergo oxidation at constant pressure.
Determining Copper in Brass, 1st I titrated Na2S2O3 and determined the molarity to be 0.164. I am having trouble with the calculations for the dissolution of brass.
Using given data, calculate the change in Gibbs free energy for each of the following reactions. In each case indicate whether the reaction is spontaneous at 298 K
How many structures can be drawn from C4H10O and how can you differentiate the molecules in a labratory
HF is a stronger acid than HBR because F has greater electronegativity than Br 2) the acid (HA) strength will increase when the H-A bond strength increases
At constant pressure and 25 degrees celcius a sample of gas occupies 4.5 liters. At what temperature will the gas occupy 9.0 liters?
A solution of 62.4 g of insulin in enough water to make 1.000 L of solution has an osmotic pressure of 0.305 atm at 25°C. Based on these data, what is the molar mass of insulin?
A current of 4.85 A is passed through a Cu(NO3)2 solution. How long (in hours) would this current have to be applied to plate out 7.60 g of copper?
Write the net ionic equation for the reaction that occurs when an aqueous solution of hydrochloric acid reacts with an aqueous solution of ammonia. please find delta H also. Or at least give me the state at which each element is in.
the density of an aqueous ethanol solution is .789 g/mol. How many grams of ethanol should be mixed with water to make 225mL to make a 4.5% ethanol solution?
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