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A cylinder of compressed gas rolls off a boat and falls to the bottom of a lake. Eventually it rusts and the gas bubbles to the surface. A chemist collects a sample of the gas with the idea of tryin
Given that protein requirement is 0.8 g / kg body weight, and assuming that your caloric requirement is 30 kcal / kg body weight calculate the macronutrient content of your ideal diet
At a fixed temperature, equal moles of N2 (g) and F2 (g) are mixed in a constant pressure container (the volume of the container changes in order to keep the pressure at a constant value). The N2 (g
A 2 kbp (1 kilo base pairs =1,000 bp) DNA fragment is to be amplified by PCR from the genome of nematode C.elegans, what fraction of the total DNA does the target sequence constitute
The broad bean is diploid and 2n= 18. Each haploid chromosome setcontains approximately 4 m of DNA. the average size of each chromosome during metaphase of mitosis is 13 µm.
How much potassium oxalate can be added to 158.0 mL of 0.35 M [Cu(NH3)4]Cl2 before a precipitate of CuC2O4 begins to form?
An ocean diver experiences a light intensity (origination from the sun) of 452.6 W/m2 at a depth of 6.15 meters from the surface of the ocean. At a depth of 25.6 meters, the light intensity is 336.5
A hippopopulation has a locus with 2 alleles, one fast swimmer and the other slow swimmer, If the population is in Hardy-Weinbergequilibrium, what is the frequency of the heterozygous genotypein the p
Calculate the average induced voltage between the tips of the wings of an airplane flying 10,000m above West Haven at a speed of 1080 km/h. The wingspan of the airplane is 36.6 m, the Earth's magnet
Solid Ba(MNO4)2 is in equilibrium in a solution of KMNO4. What concentration of KMNO4 is needed to establish a concentration of 2.0 x 10-8 for the Ba 2+ ion in solution?
Give the quantitative species inventory for the result of the mixture of the following substances, 2.00 mols Cl2, 1.00 mols Br2, 0.50 mols I2, 0.50 mols NaCl, 1.00 mols NaBr, and 2.00 mols NaI.
The slug population has 2 alleles: slime1 (very slimy) and slime 2 (barely slimy), Calculate the actual population's genotype frequencies, Is the population in Hardy-Weinberg equilibrium
calculate the change in ph when 6 ml of 0.1 M HCl is added to 100 ml of a buffer solution that is 0.1 M in NH3 and 0.1 M in NH4Cl. And calculate the change in PH
How many grams of dry need to be added to 1.50 of a 0.600 solution of ammonia, , to prepare a buffer solution that has a of 8.59? for ammonia is.
How does theoretical yield allow you to determine the stoichiometry of the reaction?CaCl2.2H2O + K2C2O4.H2O ---> CaC2O4.H2O + 2KCl + 2H2O
why would paraformaledhyde be used in an acetal formation reaction than formaldehyde(Bp=-6*C) which is commercially available as a 37% aqueous solution?
What is the pH of a 0.0278 M solution of CaO? HINT: CaO is ionic and dissociates into ions. What is the oxygen ion that results? What kind of an acid or base is it? You need to write out the acid/ba
When 8.6 g of toluene is mixed with 9 g of pure nitric acid, only 6.7 g of trinitrotoluene (TNT) is recovered from the mixture when it is separated from other undesired byproducts. What is the perce
The % ionization of a weak acid always declines in a solution that contains the salt of the anion relative to a solution of the acid alone. For example the % dissociation of the acetic acid is less
Three bulbs are connected by tubing, and the tubing is evacuated. The volume of the tubing is 35.0 mL. The first bulb has a volume of 35.0 mL and contains 8.84 atm of argon, the second bulb has a vo
Define Tm. Under which of the following conditions will the Tm behighest, What are the mechanisms by which each of these factors influences Tm
What is the concentration of Ag+(aq) remaining in solution when the second metal iodide begins to precipitate from the solution? Ksp1(AgI)=1.5E-16 and Ksp2(PbI2)=1.4E-8
Define Tm. Under which of the following conditions will the Tm behighest, What are the mechanisms by which each of these factorsinfluences Tm
A saturated solution of unknown metal hydroxide M(OH)2 has a measured pH of 8.91. Determine the value of Ksp for the compound.
How and why are the lines from the metal salt solutions different from the hydrogen lines. Explain in terms of theory of hydrogen atoms and salt solution atoms.