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A solution is made by adding 50.0 mL of ethanol (C2H5OH, d = 0.789 g/mL) to 50.0 mL of water (d = 0.998g/mL). What is the total vapor pressure over the solution at 20 C? The vapor pressure of ethanol at 20 C is 43.6 mmHg.
If you have 400mL of .5 M NH3, how many moles of .47 M HCl must be added to the ammonia solution to reach the equivalence point.
calculate the molality, molarity, and mol fraction of HF in a solution made by dissolving 5.0g of HF in 250g of water
What is the pressure in millimeters of mercury of 0.0110 mol of helium gas with a volume of 208 mL at a temperature of 35 degrees C?
Explain what health risks may arise people use this hot water in the preparation and cooking and what is the equilibrium constant for this reaction
What is the minimum volume of 7.0M HCl required to completely dissolve 14.0 grams of magnesium metal?
How does insulin promote glycogen synthesis in the liver? By binding to glycogen phosphorylase. By activating glycogen phosphorylase. By inhibiting glycogen synthase.
Determine the numbers of moles of S8 that are required to make 0.600 moles of SF4.
Multiple choice questions in nuclear chemistry - which equation represents the balanced nuclear equation
you just need to find out Which Substance (given) will be to fall to the bottom of the beaker by combining them with H 2 O In A Beaker?
A particular snack mix contains 1.30 g of salt per 100 g of the mix. How much mass of the mix can be consumed and still be within the FDA limit of 2.40 g of salt.
Why does phenolphtalein change colour during the production of gas?
Assume a density of 1.08g/mL for the solution. A)Find molarity of solution B)Find molality of solution C)Calculate mass percent of solution
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