Use your calewlator to complete the following maltiplication/divinion problems Report your final reer ia Ecientufic notation Be sure to include correct anits 21) 4.8 x 10' km x (2.0 x 10' km) 22) 333 x 10*m x(0.00 x 10 m)

Explain the differences between molecular conjugation and bioconjugation for advanced drugdelivery. Please provide an example of each

Balance the following unbalanced equation.αLi3N(s)→βLi(s)+γN2(g)�Li3N(�)→�Li(�)+�N2(�) Give your answer as an ordered set of numbers α�, β�, γ,

An electric current of 32.30 A flows for 528. milliseconds. Calculate the amount of electric charge transported. Be sure your answer has the correct unit symbol and the correct number of significant digits.

Please ASAP. Thank you. A hypothetical neuronal cell shows the following intracellular and extracellular concentration of sodium, potassium, calcium, and chloride ions.   Extracellular concentration (mM) Intracellular concentration (mM) (Ion)out/ (Ion)inside E ion at 37 oC Sodium ion 420 60     Potassium ion 25 420     Calcium ion 16 0.4     Chloride 565 45       Calculate the Nernst potential of these ions at 37 oC . Show your work.

Under the conditions of this extractive procedure, how does aspirin become partitioned into the aqueous layer? How do we then recover this substance in a pure form from the aqueous layer? O 1) The acidic hydrogen in the carboxyl group (-COOH) of aspirin undergoes an acid-base reaction with NaOH to form the conjugate base, sodium 2-acetoxybenzoate. U 2) This ionic species then readily dissolves in water. 3) Conversely, the organic unknown does not possess an acidic residue, so no acid/base reaction can occur. 4) It therefore does dissolve in water.

my question was why is E°  = 0, you never answered this .

2. Use the following reactions and AH° data to determine AH° for (- Ca(s) + 2 H20(1) → Ca²*(aq)+2 OH-(aq) +H2(g). Known reactions: H*(aq) + OH- (aq) → H2O(1) 0.0 ΔΗ - 55.9 kJ Ca(s) + 2H*(aq) → Ca²*(aq) + H2(g) AH° = – 543.0 kJ

how do i solve this problem?( part b and c)

The name carbohydrate comes from the fact that many simple sugars have chemical formulae that look like water has simply been added to carbon. (The suffix hydrate from the Greek word hydor ("water") means "compound formed by the addition of water.") The actual chemical structure of carbohydrates doesn't look anything like water molecules bonded to carbon atoms (see sketch at right). But it is nevertheless possible to chemically extract all the hydrogen and oxygen from many simple carbohydrates as water, leaving only carbon behind. If you search the Internet for "reaction of sulfuric acid and sugar" you will find some impressive videos of this. Suppose you had  300.g  of ordinary table sugar, which chemists call sucrose, and which has the chemical formula  C12H22O11 . Calculate the maximum mass of water you could theoretically extract. Be sure your answer has a unit symbol, and round it to the correct number of significant digits.