Third gradingOpen sub menus for convenience |
Problem: (Mass Percentage)1. Bicarbonate of soda (sodium hydrogen carbonate) is
used in many commercial preparations. Its formula is NaHCO3. Find the
mass percentages (mass %) of Na, H, C, and O in sodium hydrogen
carbonate. (Weight/Volume Percentage)2. What is the weight/volume percentage concentration of 250mL of aqueous sodium chloride solution containing 5g NaCl? a. Calculate the weight/volume (%) 3. 10.00g BaCl2 is dissolved in 90.00g of water. The density of the solution is 1.09g/mL. Calculate the weight/volume percentage concentration of the solution. a. Calculate the volume of the solution b. Calculate w/v (%)
4. 186.4L of aqueous sodium hydroxide solution contains 1.15kg NaOH. What is the weight/volume percentage concentration of this solution in g/100mL? a. Convert the units (mass to grams, volume to
mL) mass solute (NaOH) b. calculate w/v (%) |
second gradingOpen sub menus for convenience |
Predict whether the following ions or molecules can act as either a Lewis acid or a Lewis base.
(a) Ag+
(b) NH3
first gradingOpen sub menus for convenience |
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Question by: Reagan | ||||||||
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Question by: Alleta
Download Quiz sheet here:
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play games prepared by the GROUP GENIUSES here:
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