A 0.150 mol quantity of CoCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Co2+ ions at equilibrium? Assume the formation constant* of Co(NH3)2+6 is 5.0x1031 M-6.

genow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator=Dassignment-take [References] A 1.270 g sample of oxalic acid, H2 C2 04, is placed in a 100.0-mL volumetric flask, which is then filled to the mark with water. What is the molarity of the solution? Molarity = |M %3D

Answer question number one, please.

Answer question 11, Mass % HCI in sample. Then, show your setup for the calculation of the molarity of the HCI for Trial. For the last section, show your setup for the calculation of the percent HCI in the solution. (Use the chart for reference)

In synthesizing aspirin, a student used 5.324 g of salicylic acid and excess acetic anhydride.  After recrystallization, the product weighed 6.362 g.  Calculate the percent yield of aspirin.

Analytical chemistry

Nicotine is a naturally produced alkaloid and is widely used recreationally as a stimulant that produces pleasing effects in brain making it addictive. It is composed 74.017% C, 8.714% H and 17.269% N. In 1.00-g sample of nicotine contains 6.163X10^-3 moles. Determine its molecular formula? Please show the complete solution and write clearly. Thank you.

Is this statement True or false?

Please don't provide handwriting solution

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