Homework answers and tutorials

Waiting for answer The weight of a diamond is given in carats. One carat is equ...
##1xx10^22"atoms C"## are in a 1.00 carat diamond. Convert 200 mg to g. ##"1000 mg=1 g"## ##200cancel"mg"xx(1"g")/(1000cancel"mg")="0.2 g"## Convert carats to grams to moles. #...
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Waiting for answer Where did the Second Continental Congress first meet in?
The Continental Congress first met in Philadelphia PA.
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Waiting for answer What do nephrons in the kidneys do?
Nephrons are the most basic and smallest filtration unit in the kidney. They contain many parts, including a tufted capillary whose blood plasma is filtered into a capsule known as...
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Waiting for answer How many branches of government were organized under the Art...
Under the Articles of Confederation, the US government consisted only of a congress of representatives from each state. While each state had its own constitution and three branches o...
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Waiting for answer How do you find x and y intercepts of ## 6x + 3y = 9##?
xintercept is ##x = 3/2## or (3/2, 0). yintercept is ##y = 3## or (0, 3) To find the xintercept, set ##y## equal to ##0## and solve for ##x##: ##6x + 3*0 = 9## ##6x + 0 =...
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Waiting for answer How do you find the derivative of ##sqrt(e^(2x) +e^(2x))##?
You would use the . ##y=(f(x))^n## ##y'= n(f(x))^(n1)*f'(x)## ##y= sqrt(e^(2x) + e^(2x))## write it in a form that is more understandable ##y = (e^(2x) + e^(2x))^(1/2)## lets work out f'(x): remember: ##y = e^(ax)## ##y'(x) = ae^(ax)## ##f(x) = e^(2x) + e^(2x)## ##f'(x) = 2e^(2x) + (2)e^(...
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Waiting for answer A fetus has a special type of hemoglobin. What is this calle...
Fetal hemoglobin (Also known as Homoglobin F/HbF) Which is the main oxygen transport protein in the human fetus during the last seven months of development in the uterus and persist...
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Waiting for answer How do you make a factor tree for 210?
##210=2xx3xx5xx7## A factor tree of a number is a diagram, in which starting from a given number, you find its factors, then the factors of those smaller numbers and you go on, until...
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Waiting for answer How many miles are in a light year?
Light second (ls) in miles = 1.862824 E+05 miles. So, light year = ls X 3600 X 24 X 365,256363 = 5.878728 E+12 miles.. I have only 7sd approximation to ls. Using more sd ln ls, we c...
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Waiting for answer What is a western blot HIV test?
The enzymelinked immunosorbent assay (ELISA), also known as an enzyme immunoassay (EIA). The series of blood screenings are performed to test for HIV. The enzymelinked immunosorbe...
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Waiting for answer A notebook computer has a mass of 2.25 kilograms. About how...
##2.25 " kg" ## is almost ##5 " pounds"## You need to know the conversion factor first. ##1" Kg" = 2.205 " lbs"## So, for every Kg , there are just over 2 pounds. ##2.25 " kg" xx...
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Waiting for answer What is quantitative and qualitative data?
The term Quantitative refers to characteristics that have numeric value or a quantity. The mass of material or the temperature of a solution. This type of data is also referred to as Extensive Properties . The term Qualitative refers to characteristics of description or quality. The color of a...
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Waiting for answer Do halogens appear in the IR spectrum? For example, in a mol...
As an additional answer, if we were specifically talking about, say, ##"Br""Br"##, ##"F""F"##, etc., then no, those wouldn't show up. IRactive vibrational motions, i.e. those that change the dipole moment of the molecule, show up in an IR spectrum. So in the above diagram of ##"CO"_2##, ##B#...
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Waiting for answer What mass of KCl is in 350 mL of 0.24 M KCl?
Given and volume, convert them to mass (grams) M = moles/Liter mole = gram molecular weight/mole L x M = moles moles x molecular weight = mass 0.350L x 0.24M/L = 0.084mole 0.084 x...
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Waiting for answer The mass of Uranus is about ##8.7 times 10^22## metric tons...
Mass of Sun is ##2.297xx10^4## times mass of Uranus As the mass of the Sun is ##1.998xx10^27## metric tons and mass of Uranus is ##8.7x10^22## metric tons Mass of Sun is ##(1.998xx...
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Waiting for answer Which delegate was called the "Father of the Constitution"?
James Madison was called the "Father of the Constitution." James Madison was called the "Father of the Constitution" because he was the most prepared for the convention. He also con...
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Waiting for answer What is an inequality?
An inequality is simply an equation where (as the name implies) you don't have an equal sign. Rather, inequalities deal with more nebulous greater than/less than comparisons. Let me use a real life example to communicate this. You buy 300 chickens that you're going to cook at your restaurant ton...
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Waiting for answer What is the formal charge formula?
And . Clearly we must assign the 2 electrons from each covalent bond. These are shared between the participating atoms. The 2 electrons shared by a covalent bond are shared between the participating atoms.
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Waiting for answer What are the monomers and polymers of carbohydrates?
Monomer of = monosaccharides Polymer= (depends) disaccharide, oligosaccharide, polysaccharide Carbohydrates are one of the four basic macromolecules of life. They are a polymer made up of monomers called monosaccharides. These building blocks are simple sugars, e.g., glucose and fructose. Two mo...
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Waiting for answer What is phosphorylation and why is it important?
The covalent addition of a phosphate group to a molecule. Phosphorylation is an important mechanism by which the activity of can be altered after they are formed. A phosphate group...
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