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Problem- Why does a 1.0 molal solution of AlCl3 in water freeze at a lower temperature than a 1.0 molal solution of NaCl in water?
If possible just a brief explanation how you got the answer?
He was surprised that most of the white solid melted sharply between 121 and 122 C but that a small amount remained unmelted even at temperatures above 200 C. Explain this behavior.
if 40.0 kJ of energy is absorbed by 500.0 g of water at 10.0 degrees celcius what is the final temperature of water?
The average concentration of sulfate ion in seawater is 2710 mg of sulfate ion per kg of seawater. What is the molarity of the sulfate ion if the density of the seawater is 1.025 g/mL?
When distilling a pure compound, the boiling temperature remains constant although you are heating the flask. Why?
How much benzoic acid should be formed and will it be pure (in theory)? Is 50mL of water an appropriate volume for this procedure. If not, what is the minimum volume of water required? Use calculations to aid in your explanation.
The pH of a lake that has a volume of 2.4*10^4 liters has a pH of 4.5. Calculate the mass of Calcium Carbonate (CaCO3) that must be added to the lake water in order
Explain a patient is to receive one dose of 400.0 mg of Zithromax by IV. Explain the powdered Zithromax is reconstituted (diluted) to 100.0 mg/mL. Define how many milliliters of reconstituted Zithromax are wanted for one dose
the following reaction is carried out in a closed vessel.2 nog cl2g ---gt 2 noclgif the partial pressure of no is
At what radius does the probability of finding an electron at a point in the H atom fall to 50 per cent of its maximum value
How many moles of HNO3 are present in 35.0 mL of a 4.50 M solution of nitric acid?
What is the maximum number of grams of NaCl that can be added to 4.0 L of a 0.0090 M lead(II) chloride solution (without changing the volume significantly) without causing any precipitation of lead(II) chloride? For lead(II) chloride, Ksp = 1.6 x ..
Calculate the pH at the first equivalence point. d) How many mL base, total, must be added to achieve the 2nd equivalence point?
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