Homework answers and tutorials

Waiting for answer Your blood has a density of 1.05 g/mL. How many grams of blo...
You would lose 497 g of blood. First you have to convert 1.00 pint to millilitres. A US pint is different from an Imperial pint. Also, a "pint" of blood is about 450 mL. I will assume that you are using US pints. Then ##"1.00 pint" × "473.2 mL"/"1 pint" = "473.2 mL"## Here's how you . For your...
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Waiting for answer How is a prepared slide different from a wet mount on a micr...
You can see more structures in a prepared slide that a wet mount. However, you can't view anything "living" on a prepared slide; so the wet mount comes in handy if you want to observe how an organism moves, eats, reproduce etc.
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Waiting for answer What are the monomers for carbohydrates, proteins, lipids, a...
the monomer of carbohydrates is monosaccharid, the monomer of proteins is amino acid, the monomers of lipids are 3 lipid acids and 1 glycerol, the monomer of nucleic acid is pentose.
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Waiting for answer What is Proust's law of constant composition?
A particular compound will always contain same in same (constant) proportion, irrespective of its source or method of preparation Nowadays, Proust’s Law of Constant Composition is usually known simply as the Law of Constant Composition. For example, oxygen makes up 88.810 % of the mass of any sam...
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Waiting for answer What are prime factors of 38?
##2## and ##19## Noting that ##38## is even, we know that ##2## is a prime factor. If we divide, we get ##38:2 = 19##. As ##19## is a prime number, we know there are no more prime f...
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Waiting for answer What is the difference between a condensed structural formul...
A structural formula uses lines to show how the bonds between the atoms. A condensed structural omits most or all the bonds. Structural Formula A structural formula tells us which atoms are in a molecule. It also tells us how those atoms connect to one another. There are different types of struc...
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Waiting for answer What macromolecules make up the cell membrane?
Phospholipids are the main component of a Phospholipids for the bilayer of the cell membrane, with their hydrophilic heads pointing to the inside and outside of the cell and the hyd...
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Waiting for answer What is the hybridization of the central iodine atom in I3−?...
##sp^3d## The easiest way to determine this is to draw the lewis structure of the species. What's important here is knowing that the species, ##I## can become hypervalent, or that is...
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Waiting for answer What is the difference between an internal and an external c...
An internal circuit is a circuit within a conductor. An external circuit is a circuit within wires and devices. Note: In the United Kingdom, its defined differently. The internal circuit is the circuit inside the supply (perhaps a cell or powerpack). The internal circuit consists of two compon...
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Waiting for answer What is the purpose of chiasmus?
I think it has several connected purposes... As a self confessed fan of chiasmus, I think it has several purposes: To give structure and poetic form, making text more digestible an...
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Waiting for answer What metalloids are in the periodic table?
The eight classified as are boron, silicon, germanium, arsenic, antimony, tellurium, astatine, and polonium. Metalloids occur along the diagonal stairstep between metals and nonmetals. The stairstep line includes the elements from boron to astatine. The elements to the upper right of this li...
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Waiting for answer "Absolute Zero" is what temperature on the Celsius and Fahre...
−273.15°C or 459.67°F Figures taken from the Wikipedia page .
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Waiting for answer Do you capitalize the word coming after a semicolon in a sen...
No. Unless it's a proper noun that you'd capitalize anyway (or part of a title), there is no reason to capitalize after a semicolon or even a colon.
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Waiting for answer What is the shape of SF4 (including bond angles)?
Within the context of VSEPR theory , you can count electrons to determine the electron geometry ("parent" geometry). Sulfur : 6 valence electronsFluorine : 7x4 valence electronsTotal : 34 valence electrons You can put sulfur in the middle because fluorine tends to make single bonds. Therefor...
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Waiting for answer Pepsi puts 355 ml of pop in a can. How many drops is this?
Here's what I got. These are classic examples of problems that can be solved by using one or more conversion factors that help you go from one unit to another. As far as I know,...
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Waiting for answer If 22.3 grams of solid lead(II) oxide reacts with 34.06 gram...
Your reaction will produce 20.7 g of lead metal. Start with the balanced chemical equation for this ##3PbO_((s)) + 2NH_(3(g))  N_(2(g)) + 3Pb_((s)) + 3H_2O_((g))## Notice th...
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Waiting for answer How do I find the partial sum of an arithmetic sequence?
The partial sum of an arithmetic sequence can be found using the formula ##S=n/2(a1+an)## where n= the number of terms, a1= the value of the first term, and an= the value of the last (nth) term. As an example, if you were to find the partial sum of the sequence 1, 3, 5, 7, 9, ..., 49, you would fir...
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Waiting for answer How do you find the square root of 23?
##sqrt(23) ~~ 1151/240 = 4.7958bar(3)## ##23## is a prime number, so it is not possible to simplify its square root, which is an irrational number a little less than ##5 = sqrt(25)##...
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Waiting for answer How can you simplify sin(2x)cos(2x)?
This is just a trig question to get the solution into a different form; Recall the sine addition formula: ## sin (A+ B) =sinAcosB + cosAsinB ## Put ## A=B ## to get a double angle formula; ## sin (A+ A) =sinAcosA + cosAsinA ## ## :. sin (2A) =2sinAcosA ## If we put ##A=2x## then; ## :. sin (2(2...
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Waiting for answer What is the function of microtubules in the cell?
Microtubule play important roles in cell division, intracellular transport, cell movement and in the maintenance of cell structure. Microtubules(MTs) are polymers of dimeric alpha an...
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