What is molarity and molailty of the solution
An aqueous KNO3 solution is made using 87.6g of KNO3 diluted to a total solution volume of 1.33L. Density of the solution is 1.05 g/mol. What is its molarity of the solution? molailty of the solution? and mass percent of the solution?
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A pot containing 1.07 liter of water, initially at 23°C, is placed on a 1071 W electric heating element. How much heat must be supplied to the water to bring it to a boil?
Question: 153 grams of metal have a specific heat of 0.061 cal/g C and at a temp of 99.1C is added to 85.0 grams of water at 23.5C What will be the final temp of the water when equilibrium is reached ?
Calculate the amount (mL) of Compound A needed to give 12 mmol. MW of Compound A: 32.04 g/mol Density of Compound A: 0.79 g/mL
A student is asked to prepare a buffer solution at pH = 8.60, using one of the following weak acids: HA (Ka = 2.7 X 10^-3) HB (Ka= 4.4X10^-6) and HC (Ka = 2.6 X 10^-9). Which acid should she choose? Why? (Hint: pKa = -logKa)
In the laboratory a student combines 25.5 mL of a 0.203 M sodium nitrate solution with 24.3 mL of a 0.375 M manganese(II) nitrate solution.
If magnesium oxide smoke has been lost in too great an amount during the heating of the crucible would this have made the calculation % Mg in the product too high or too low? Explain.
Select the correct IUPAC name for the following organic substrate, including the R or S designation where appropriate, and draw the major organic product(s) for the SN1 reaction.
Estimate the effective nuclear charge for an n=1 n=2 n=3 electron in sulfur. show steps.
Air at 25°C and 100 kPa has a dew point of 16°C. If you want to remove 50% of the initial moisture in the air (at a constant pressure of 100 kPa), to what temperature should you cool the air
sodium hydroxide is extremely soluble in water. At a certain temperature, a saturated solution contains 551g of NaOH (s) per liter of solution. Calculate the molarity of this saturated NaOH (aq) solution.
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