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How significant is one's knowledge of the structure of organic compounds in understanding biomolecules?
The ion concentration of blood is typically around 135 - 145 mM. To make 1.00 L of a solution containing 140 mM NaCl using a stock 2.00 M NaCl solution and water, how much water would you use
a 5.00 ml sample of barium hydroxide is titrated to the phenolphthalein endpoint using hydrochloric acid. the five ml
Which one of these equations describes a redox reaction. 2Al+3H2SO4(aq)-->Al2(SO4)3(aq)+3H2(g), 2KBr(aq)+Pb(NO3)2(aq)-->2KNO3(aq)+PbBr2(s), CaBr2(aq)+H2SO4(aq)-->CaSO4(s)+2HBr(g), H+(aq)+OH-(aq)-->H2O(1), CO.-(aq)+HSO4-(aq)-->HCO3-(aq)+SO42-(aq)
A sample of 1.0 mole of a perfect gas with cp= 20.8 J K-1 is initially at 3.25 atm and 310K. If it undergoes reversible adiabatic expansion until its pressure reaches 2.50 atm. Calculate the final volume and temperature and the work done.
Are there certain shapes (tetrahedral, bent, linear) of coordinated covalent bonds that will signal if it is polar or non-polar
Calculate the mass of ethylene glycol required to lower the freezing point of 200 mL of water/ice by 4.5 degrees celsius. The K(f) for H20 is 1.86 degrees celsius/m. Assume the density of water is 1.00 g/ml.
Problem- If an object has been magnified 106 times and appears to be 10-4 m, what is the actual size of the object in pm. Enter your answer in decimal notation, using no units.
In a separate experiment, an empty flask is weighed, 35.3 cm3 of the lubricating oil is poured into the flask and the flask is reweighed. If the scale reading was 124.8 g in the first weighing, what would it be in the second weighing
consider the dissolution of mns in water ksp 3.0 times 10-14.mnss h2ol picture mn2aq hs-aq oh-aqhow is the
Describe a double bond according to valence bond theory? and Explain why rotation is restricted about a double bond, but not about a single bond.
Mixed 1.15g of Na2HPO4 (MW=142g/mol) and 2g NaH2PO4 (MW=138 g/mol) in 1L of water. What is the concentration of your buffer and what is the pH
What will its activity be at the end of the day-that is, after 10.00 hr?
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