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When using the titration technique explain why the beakers that contain the acid solutions must be dry before the acid is added, but the volumetric flask.
What is Mycology? A. The study of molds B. The study of algae C. The study of Mutualism D. The study of fungi
A 10.00-mL sample of a solution containing the weak acid, formic acid, was placed in a 25-mL volumetric flask and diluted to the mark with water.
Tooth enamel consists of hydroxyapatite, Ca5(PO4)3OH (Ksp = 6.8×10-37). Fluoride ion added to drinking water reacts w/Ca5(PO4)3OH
Write the net ionic equation for the following reactions show physical states for both reactants and products.
What phylum are the "Sun Animalicules" in? a. Heliozoa b. Actinopoda c. Acanthocephala d. Amoeba
Can microbiology assist human genetics? How the alkaptonuria (black urine disease) mutation was identified?
What volume of 16 M sulfuric acid must be used to prepare 1.5 L of a 0.1 M sulfuric acid?
At what temp. will a fixed amount of gas with a volume of 175 L at 15C and 760 mmHg occupy a volume of 198L at a pressure of 640 mmHg?
What distinguishes a eukaryotic cell from a prokaryotic cell?Why embryos are an excellent source for stem cells?
Select a molecule. List the atoms that that molecule is composed of and describe the type of bond that holds those atoms together.
How many moles of citric acid are in 1.90 qts of lemon juice *d=1.09 g/ml* that is 6.62% citric acid by mass?
The retrovirus that leads to AIDS a. Has no enveople b. Contains RNA in its genome.
The treatment of multicellular parasites generally consists of a. Penicillin therapy b. Large doses of sulfonamide drugs
Endotoxins are generally produced by a. Fungi b. Gram positive bacteria c. Gram negative bacteria
Solid aluminum hydroxide Al(OH)3 (s) reacts with aqueous sulfuric acid H2SO4 (aq) to produce aluminum sulfate Al2(SO4)3 (aq) and water.
What is the result of scaling the # moles of KOH used in the given procedure by this factor? What volume of 1.4M KOH contains this # moles?
Pennies made after 1982 contain 97% zinc by mass. A student wants to prove this by filing the copper outside the penny until he sees zinc.
Discuss why prokaryotes tend to be small relative to eukaryotic cells. Discuss why size may be limited in cells of eukaryotic organisms bases on their function
One of the most commonly used white pigments in paint is a compound of titanium and oxygen that contains 59.9% Ti by mass.
Please list and describe alternative THREE PARAMETER Models.
Why is it that we can say that ozone in the stratosphere is beneficial to mankind, but ozone at the surface of the earth is harmful to mankind?
List the experimental requirements of Koch's postulates, and explain the exceptions to the requirements.
It also appears that not all of the alum (aluminum sulfate) dissolves in water and therefore limits the max. creation of aluminum hydroxide. Why?
Outline the PCR process and provide an example of its use.Describe five ways of getting DNA into a cell.