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Oxalic acid is a diprotic acid (H2A) which can be used as a primary standard. If it takes 33.6 mL of a solution of NaOH to neutralize 2.118 g of a oxalic acid, what is the molarity of the sodium hydroxide? MM(Oxalic acid) = 126.07g
What observed rotation is expected when a 1.36 M solution of (R)-2-butanol is mixed with an equal volume of a 0.680 M solution of racemic 2-butanol, and the resulting solution is analyzed in a sample container that is 1 dm long?
you place ethanol of 100 grams and water of 100 grams in a refrigerator. both are at room temperature initially.
The normal boiling point of water (delta H vap = 40.7 kJ/mol) is 100c. At the summit of mount Everest the boiling point of water is 70 c. Calculate the pressure in (torr) at the summit of Mount Ev.
predicting membrane protein topology from sequence you have cloned the gene for a human erythrocyte protein which you
is it possible to use methylene blue to determine the concentration of ascorbic acid in orange
how many g of A will be transferred to the new ether layer? (K remains the same, even though the number of g of A being partitioned is smaller. How many total g of A have been extracted into the two ether fractions?
What is the ground state electron configuration for the boron atom? What term symbols can arise from this electron configuration?
in the chemical formula for alu there are 12 water molecules present. it is also possible to prepare the anhydrous
What is the mass of a rectangular piece of copper 24.4cm x 11.4cm x 6.6cm? The density of copper is 8.92 g/cm^3.
completely, showing all bonds, electrons, and charges in reactants and products. Draw a reaction arrow between the reactants and products and plus signs between each reactant and each product.
The atmospheric activity of 14 C is 15 cpm/gC (counts per minute per gram of carbon). Assume that the cloth was made in the year 24 B.C. The half-life of 14 C is 5730 years. What will be the expected activity of 14 C of this sample
A 0.9157g mixtureof CaBr2 and NaBr is dissolved in water and AgNO3 is added to the solution to form AgBr Precipitate. If the mass of the precipitate is 1.6930g, what is the percent by mass of NaBr in the original mixture
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