Consider this second-order reaction: (A B C and rate = k[A]2). What will happen to the reaction rate if the concentration of A is doubled?
Answers
Answer:
The reaction rate will be multiplied by four.
Explanation:
The reaction rate is the measure of how fast a reaction is happening, and it can be calculated by how fast the reactants are disappearing, or how fast the products are being formed.
For a generic reaction:
A → B + C
The rate (r) is:
-r = k*[A]ⁿ
The minus signal refers to the disappearing of the reactant, k is the velocity constant of the reaction, and n is the reaction order. So, for a second-order reaction:
-r = k*[A]²
If the concentration of A is doubled: [A]' = 2[A]
-r' = k*(2[A])²
-r' = k*4*[A]
-r' = 4*k*[A]
-r' = 4*(-r)
Related Questions
Calculate the number of moles of bromobenzene, magnesium, and benzophenone that you will use in this experiment. You will need to look up the molecular weights of each substance and the density of bro. A) Bromobenzene B) Magnesium C) Benzophenone D) None of the above
A magnifying glass is an example of a _______ lens.a. plano-convexb. plano-concavec. convergingd. double-concave
Uses a special type of paper to separate liquids based on their different densitiesa. filtrationb. distillationc. crystallizationd. chromatography
A student gains 1.0 lb in two weeks. How many grams did he gain?Express your answer to two significant figures and include the appropriate units.I don’t know
Answers
pOH = -log(8.6 x 10 ^-5)
pOH = 4.07
To calculate the pH we use the relation of pOH and pH, expressed as:
14 = pOH + pH
pH = 14 - 4.07 = 9.93
pH = -log [H+]
[H+] = 10^-9.93 = 1.16 x 10^-3 M
Answers
Migrate means moving from habitat to another. Example - I migrated to Canada in 1994. Another example is - when autumn arrives, birds migrate south.
Answers
For number one, the reaction is the neutralization of a strong acid and a strong base to yield a salt and water. The strong acid is the HCl and the strong base is NaOH. The salt is NaCl.
For number two, the equation is balanced. Na in the reactant side has one atom and also in the product side. O has only one atom in the product and in the reactant. There are 2H’s in the reactant and in the product side (present in H2O, the 2 in H stands for 2 atoms of H). One atom of Cl is present in the reactant and product side.
For number three, the reactants are NaOH-sodium hydroxide and HCl-hydrogen chloride(hydrochloric acid). The products are NaCl-sodium chloride and H2O-water.
Answers
=
= 0.134 mol
mol of oxygen:
ratio of
= 2 : 15
= 1 : 7.5
: . mol of
= 1.01 mol
Mass of Oxygen = mol * Mr
= 1.01 mol * (16*2) g/mol
= 32.22g
Note: Mr is molar mass
Answers
Final answer:
The question is asking about the mathematical relationship between mass, volume and density in Physics, which is represented by the formula D = m/V; this formula is essential in various physics computations.
Explanation:
The relationship between the mass (m) of a material, its volume (V), and its density (D) is represented by the formula D = m/V. This is a fundamental concept in Physics, specifically in areas involving fluid mechanics and material science. If you know the mass and volume of a material, you calculate its density using this formula, and decipher a lot about the material's properties from the result of this calculation.
Learn more about Density here:
#SPJ12
(2) are arranged in a regular geometric pattern
(3) have strong attractive forces between them
(4) have collisions that result in the system losing energy
Answers
Following assumptions:
a. number of molecular size is very large, but their separation is very large compared to their molecular size.
b. randomly distribution of molecules in which their speed does not change
c. molecules undergo elastic collision with other molecules but exert no force
d. molecules followed Newton's laws of motion