Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Question- A solution containing a mixture of metal cations was treated with dilute HCl and no precipitate formed. Next, H2S was bubbled through the acidic solution. A precipitate formed and was filtered off. Then, the pH was raised to about 8 and H2S was again bubbled through the solution. A precipitate again formed and was filtered off. Finally, the solution was treated with a sodium carbonate solution, which resulted in no precipitation. Which metal ions were definitely present, which were definitely absent, and which may or may not have been present in the original mixture?
State your answer by means of three significant figures.
compound has been analyzed and found to contain the following masses of elements: Carbon 0.2990g, hydrogen 0.05489g, nitrogen 0.2318g, and oxyen 0.1328g. calculate the tmpirical formula of the compound.
The mass of the final solution is 73.0 grams, and its heat capacity is 3.85 J/g°C; the heat capacity of the calorimeter is 5.0 J/°C. Calculate the ?Hreaction in kJ/mol metal.
Draw the skeletal structure of all the tripeptides you can make combining one of each of these amino acids. Show your products in the unionized state and omit any stereochemistry.
When an additional mol of gas is added at constant temperature and volume to a flask containing 2.00 mol of gas at 25oC and 1.00 atm pressure, the pressure increases to 1.60 atm.
Construct the lewis structure model for the ionic compound potassium chloride using the following steps.
Calculate the ph at the equivalence point for the following titration 0.20M HCl versus 0.20M methylamine (CH3NH2). The Ka of methylammonium is 2.3x10^-11.
Using the following data collected, calculate the molar mass of the unknown acid. Include calculation for each trial and the average.? Mass unknown acid
Devise a reaction to convert 2-butyne to 2-methoxy-2-butene either isomer or both? If so, explain what the reaction conditions are. If not, why not
How much ethylene glycol (C2H6O2) the major component of antifreeze, must be added to 1 L of water to keep it from at -15 F? Kf= 1.86 C/m.
Write the molecular formula for a compound with the possible elements C, H, N & O that exhibits a molecular ion at M+ = 96.0571. Molecular formula (In the order CHNO, with no subscripts)
typical industrial electrolysis cells can produce approximately 6kg of F2 in a 24 hours day. At what current (A) are these cells operating for this to be true
After labeling the molecule with a fluorescent tag it become clear that it is moving. To examine this you plot the average displacement squared versus time. How would you interpret the following results? In general terms, can you give a physical e..
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd