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Problem- If water has an alkalinity of 2 x 10^-3 equivalents per liter and a pH of 8, calculate the concentration of H+, OH-, CO3(2-) and HCO3-. Show your work
I am stuck in between this question please help me out
The experimental value of nylon 6,10 is 2.160 grams. I need to calculate the theoretical mass of nylon 6,10, in order to find out the percent yield.
The student adds 6 M NH3 to CuSO4 solution until the Cu 2+ ion is essentially all converted to Cu(NH3)4 2+ ion. The voltage of the cell goes up to 0.92 V and the Cu electrode is still negative. Find the residual concentration of Cu 2+ ion in the c..
Dry ice sublimes at room temp. If 10.0 g of solid dry ice is placed in a 400 mL container, what will be the pressure in the container at 35 degrees C
a solution of 4.00 g of sodium carbonate is mixed with one containing 4.00 g of silver nitrate. after the reaction is
How does adding a small amount of a grignard reagent solution to a Grignard reaction help the reaction get started? Hint: The presence of water (moisture) is a major reason a Grignard might not start.
You have a stock solution of 14.2 m NH3 . How many milliliters of this solution should you dilute to make 1350 mL of 0.220 M NH3
a graduated cylinder contains 18.0 ml of water. what is the new water level after 35.6 g of silver metal with a density
What does the angular momentum quantum number determine. Check all that apply. A.) the overall size of an orbital B.) the energy of the electron on the outer shell
You dissolve the sample in .550 mL of water and determine that the osmotic pressure of the resulting solution is .107 torr at 35 deg C (760 torr = 1.00 atm). What is the molar mass of the compound?
When sodium reacts with chlorine, 411 kj/mol is released. Calculate the amount of heat released if 1.37 mol of sodium form.
2.0 moles of a nonelectrolyte solute are added to 1.0 kg of an unknown solvent. The freezing point is depressed by 7.9 K. Calculate the molal freezing point constant (Kf?) for this solvent.
a which primary alcohol of molecular formula c5h12o cannot be prepared from an alkene? why?b write equations describing
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