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Consider that there is 26.38 g NaCl in a solution that has a total volume of 1,780 mL with a density of 0.8495 g/mL. A) What is the molarity of NaCl? B)What is the mass/mass %? C)What is the molality?
The volume of a sample of ideal gas at 25 degrees celius is 372 mL. what will be the volume of the gas if it is heated at constant pressure to 50 degrees celius? what will the volume fo the gas be if it is cooled to -272 degrees celius.
What is the molarity of benzyl alcohol if the molecular weight is 108.14, the volume is 5 mL
The pressure increased as the gaseous reaction PCl5 1 PCl3 +Cl2 occurred. When equilibrium was achieved, the pressure in the tube had increased to 1.25 atm. Calculate Kp.
Consider the reaction HgS + O2 → SO2 + Hg. If 200.0 grams of HgS reacted with 150.0 grams of O2, what is the limiting reagent.
The vapor pressure of water at 45.0 degrees celcius is 71.93 mmHg. Calculate the vapor pressure of a solution of 1.50m K2CO3 at this temperature
The phosphate ion forms insoluble precipitates with calcium and magnesium ions, removing them from solution. Suppose that a solution is 4.5×10?2 in calcium chloride and 8.5×10?2 in magnesium nitrate.
How many vinylic hydrogens are there in 1-ethylcyclohexene? A. one B. two C. three D. four
Give two reasons why cyclohexane adopts the chair conformation rather than a planar structure
If 1.00 g of an unknown molecular compound contains 8.35 x1021 molecules, what is its molar mass
What mass of NaOH (s) must be added to 1.0 L of 0.050 M NH3 to ensure that the percent ionization of NH3 is no greater than 0.0010%? Assume no volume change on addition of NaOH. Kb NH3=1.8 x10^-5
What is the theoretical yield of calcium carbonate if 2.05 grams of calcium chloride dihydrate reacts with excess sodium carbonate according to the balanced chemical reaction shown below?
Ignoring any side reactions and assuming the reaction occurs completely, how large (in kg) an oxygen candle (KClO3) would be needed to supply 8 people with enough oxygen for 24 hours on a small submarine?
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