Shiro

A solution prepared by dissolving 25.8 mg of benzene (78.11 g/mol) in hexane (86.16 g/mol) and diluting to 250 mL had an absorption peak at 256 nm and an absorbance of 0.266 in a 1.000-cm cell. Question: What is the concentration of benzene solution? Ques...

Can anyone help me? Ksp of CuCO3 = 3.5x10^ -4 Ksp of Ca(OH)2 = 8.9x10^ -5 Ksp of Ag2CrO4 = 10.0x10^-11. Given by these, Which has the highest molar solubility? Thanks

The glucose concentration of adults from Municipal X is normally distributed with mean of 75 mg/dL and standard deviation of 18 mg/dL. What is the proportion of the 30 households from Barangay Y with glucose concentration more than 105 mg/dL? Identify wha...

After you get the ratio. From the 0.01 moles-moles of Na2HPO4= moles of NaH2PO4 => (0.01 - Na2HPO4)/(Na2HPO4) = (ratio of pka2 from hasselbalch) unit will be mol, convert to g

Thanks for hand holding me too

Language Lance!

Would that answer be correct?

thank you dr bob, i get the answer.

i didn't get the answer, i don't know how to get absorptivity constant in the following given. I just research it, the formula is 𝐴 = − log 𝑇 something like that?

Thankyouuu.

Thankyouu i get the answer,

how about the second one?