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Draw the hydrogen bonds between thymine and adenine draw the hydrogen bonds between guanine and cytosine
determine what is the percent by mass of sodium phosphate in a 0.142m na3po4aq solution? if it is given that it has a
Solve an equilibrium problem (using an ICE table) to calculate the pH of each of the following solutions. 1) .12 M HF pH = ? 2) a mixture that is 0.12 M HF in and 0.12M in NaF. pH =?
how many mili litres of alcohol are in a 0.950 rm l bottle of wine if wine is 16 by volume alcohol.?considering the
We have 500 mL of a solution with Ba^(2+)=0.10M. How many grams of LiF must be added to begin precipitation of BaF2? The Ksp of BaF2 is 1.7 x 10^(-6)
A child discovered that her coin is missing and there is a hole in her pocket. She turned back and walked 24m east along the sidewalk. Then, she stopped for 18s and decided to head back to school.
P4(s) + F2(g)-> PF3(g) What mass of F2 is needed to produce 187 g of PF3 if the reaction has a 80.1% yield?
Initially 5 mol of an ideal gas with Cv,m=12.5 J K^-1 mol^-1 are at a volume of 5 dm^3 and a temperature of 300K. If the gas is heated to 373 K and the volume changed to 10 dm^3, what is the entropy change
The infrared spectrum of cinnamic acid has a strong absorption at about 1630 cm-1 that is not seen in the spectrum of 2,3-dibromo-3-phenylpropanoic acid. What is that absorption due to
sodium hydroxide to copper(II) nitrate and use a stirring rod to test if the solution is basic. How do you establish whether the solution is basic
Complete the following reaction and include All possible isomers of the product. One equivalent of each ligand is added to the reaction at the same time.
The following questions concerning electrolysis of molten sodium hydride (NaH), the products are Na(?) and H2(g). Which of teh following statement(s) is (are) correct
Why is the reaction of the dissolving ammonium nitrate (NH4NO3) in water spontaneous even though the dissolution is endothermic
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