Dr. caras was characterizing a cytochrome (an iron containing protein) from a new strain of bacteria. he obtained eight measurements of the percent iron in the protein: 0.2905%, 0.2905%, 0.2891%, 0.2897%, 0.3015%, 0.2899%, 0.2903%, and 0.2896%. calculate the mean ( x¯ ) and standard deviation ( ) for these results. dr. caras was characterizing a cytochrome (an iron containing protein) from a new strain of bacteria. he obtained eight measurements of the percent iron in the protein: 0.2905%, 0.2905%, 0.2891%, 0.2897%, 0.3015%, 0.2899%, 0.2903%, and 0.2896%. calculate the mean ( x¯ ) and standard deviation ( ) for these results.

Consider this equilibrium: n29) + o2(g) + 2no(c).nitrogen gas and oxygen gas react when placed in a closed container. as the reaction proceeds towards equilibrium, what happens to the rate of thereverse reaction?

Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.

What is the wavelength of a 3*10^12 hz infrared wave a 3*10^20m b 1* 10^4m c 3*10^-3m d 1*10^-4 m