A stock solution was prepared by dissolving exactly 0.4000 g of pure ASA (180.16 g/mol) in 10.00 mL of NaOH and heating the solution to a gentle boil. After cooling to room temperature, the solution was poured into a 250-mL volumetric flask and diluted to the mark with DI wate...
A rod 14.0 cm long is uniformly charged and has a total charge of -22.0 μC. Determine the magnitude and direction of the electric field along the axis of the rod at a point 36.0 cm from its center. ans:E = 1.59e6 N/C, pointing to the left equation:k_e(Q/L)(1/a-(1/(L+a))) ...
oh thanks I get it now..
tried using M1V1=M2V2 but without sucess
_______g of MnSO4 H2O are needed to prepare a solution of 100.00mL of 0.100 M MnSO4. Thank You
Give the oxidation sate for the monoatomic cobalt species whose electron configuration is the following:[Ar]4s0 3d6 Is the answer +3? Thank you!
Thank you, I guess I got confused with Al and As :)
I am reviewing my test and I having trouble figuring out the answer to the following question: List the following element symbols in order of decreasing exothermic electron affinity: Al, Ca, As _______>________>________ I wrote: Al>As>Ca (I got it wrong) I know tha...
What mass of CsBr must be added to .500L of water to produce .4molality solution? What are mole fraction and mass percent? Here is my work and below I will post a question about it: 1 mol CsBr = 212.81g density of water = 1g/mL d=mv 1=x/500 x=500g of water --> solvent .4mol...
How many grams of water would it take to quench 1 g of phenylmagnesium bromide?