You are given
130 grams of H20 and 18 grams of H2. You are required to get the theoretical
yield of H2O. Before anything else, you should know the chemical equation of
H20 and H2. The balanced chemical reaction is 2H2 + O2 -> 2H2O. The molar
mass of H2O is 18 grams per mole and the 2 grams per mole for H2.
18g H2 (1 mol
H2/2 g H2)(2 mol H2O/ 2 mol H2)(18 g H2O/1 mol H2O) = 162 g H2O
<span>Thus the <u>theoretical
yield for 18g H2 is 162g H2O.</u></span>
<span> </span>
Explanation:
[C5H5N](M) [CH3I](M) Rate(M/s)
1.00 X 10-4 1.00 X 10-4 7.5 X 10-7
2.00 X 10-4 2.00 X 10-4 3.0 X 10-6
2.00 X 10-4 4.00 X 10-4 6.1 X 10-6
Doubling the concentration of CH3I causes the rate to increase by a factor of 2. The reaction is first order with respect to CH3I.
Doubling both concentrations increases the rate of reaction by a factor of 4. In addition with the order of CH3I, we can conclude that the reaction is also first order with respect to C5H5N.
Rate Law;
Rate = k [C5H5N] [CH3I]
Rate constant;
Picking experiment 1;
Rate = k [C5H5N] [CH3I]
7.5 X 10-7 = 1.00 X 10-4 * 1.00 X 10-4 * k
k = 7.5 X 10-7 / 1.00 x 10-8
k = 7.5 x 10^1 = 75
Predict the initial rate for initial concentrations of [C5H5N] = 1.5 X 10-4 M and [CH3I] = 6.1 X 10-5 M
Rate = k [C5H5N] [CH3I]
Rate = 75 * 1.5 X 10-4 * 6.1 X 10-5
Rate = 686.25 x 10-9
Rate = 6.8625 x 10-7M/s
Answer:
There are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids)
Explanation:
There are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids), and each is an important component of the cell and performs a wide array of functions. ... Biological macromolecules are organic, meaning that they contain carbon.
To become a psychologist you must of course have obtained a master's or doctoral degree. To receive that students would typically do tons of research, work supervised clinical rotations, and teach classes that all depend on your choice of of specialty(ies) such as counseling, school, or clinical psychology.
Good luck in your future studies, I hope I helped!!
-A
Ionic i believe, they have high melting point
