1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
salantis [7]
3 years ago
15

What does a concentration gradient do to etc?

Chemistry
1 answer:
FrozenT [24]3 years ago
5 0
<span>Concentration of a chemical in a solution refers to how many of the chemical's molecules are sitting in a small volume of the solution. Concentration could be measured in molecules per liter, although molecules are so small compared to a liter that we usually use different units (just like we wouldn't want to measure the distance between the earth and the sun in inches). A gradient is a measurement of how much something changes as you move from one region to another. So a concentration gradient is a measurement of how the concentration of something changes from one place to another.

If this doesn't help here's a Khan Academy video </span><span>https://www.khanacademy.org/...and.../concentration-gradients</span>
You might be interested in
1 C3H8 + 5 O2 --&gt; 3 CO2 + 4H20. If 1.5 moles of C3H8 react, how many
UNO [17]

Answer:

First confirm the reaction is balanced:

C3H8 + 5O2 --> 3CO2 + 4H20 (3 cabon - check; 8 hydrogen - check; 10 oxygen - check).

a) In the equation there is a 5:1 ratio between propane and oxygen.  We also know that number of mole is proportional to pressure and volume.  Since pressure is constant (STP) then the volume of O2 is 7.2 * 5 = 36 litres.

b) For a near ideal gas that PV = nRT (combined gas law).  So for 7.2 litres propane we find n(propane) = 101.3 * 7.2/8.314*298 ~ 0.29 mole (using metric units throughout for simplicity).

There is a 1:3 ratio between propane and CO2.  Therefore 3 * 0.29 = 0.87 mole of CO2 is produced.

MW(CO2) ~ 44 g/mol.  Therefore m(CO2) = 44 * 0.87 ~ 38.3 g

c) We know we need more oxygen than propane (due to the 1:5 ratio) so oxygen is the limiting reagent.  Again Volume is proportional to number of mole and we see there is a 5:4 ratio between oxygen and water.  Therefore the volume of water vapour produced will be (4/5) * 15 = 12 litres.

The other questions use the same technique and will give you some much needed practice.

Explanation:

7 0
3 years ago
(IMAGE ATTACHED)<br>I dont know what this is asking me, anyone know how to do this?​
kvv77 [185]

Answer:

Oh, you need to get the blue dots, and move them to the table or graph to plot them!

Hope that makes sense!

3 0
3 years ago
I need help on this plsss
Firlakuza [10]

Answer:

An engine that creates ignites fuel with highly compressed air.

6 0
3 years ago
Read 2 more answers
When heated, calcium hydroxide and ammonium chloride react to produce ammonia gas, water vapor, and solid calcium chloride.
NNADVOKAT [17]

Answer:

13.73g

Explanation:

mass of reactants = mass of products.

Mass reactants = 5.00 g + 10.00 g = 15.00 g

Mass products = 1.27g + mass of ammonia and water vapor

Mass of ammonia and water vapor

15.00g – 1.27 g = 13.73 g

3 0
3 years ago
Jeremy had a set of 500 toy blocks that could be connected by snapping them together. At first, he used all the blocks to build
valentina_108 [34]
The masses were the same
6 0
3 years ago
Read 2 more answers
Other questions:
  • In a chemical reaction, the reactants contain 385 kJ of chemical energy, and the products contain 366 kJ of chemical energy.
    13·2 answers
  • How are elements arranged in the periodic table? By number or by mass?
    5·2 answers
  • A 67.2 g sample of a gold and palladium alloy contains 3.28×1023 atoms .
    12·1 answer
  • Which word equation shows hydrogen reacting with oxygen to form water?
    6·1 answer
  • What is the molality of a solution that contains 418.8 g HCl in 4.62 kg water?
    11·2 answers
  • NEED ANSWER ASAP
    6·1 answer
  • To answer this question, you will read two articles. First, read Article 1.
    7·2 answers
  • ¿que ocurre con el electrón de Valencia del K+ en el compuesto bromuro de potasio KBr​
    5·1 answer
  • What does the 2 mean in the formula 5Mg3(PO4)2? There are two elements in magnesium phosphate. There are two molecules of magnes
    10·1 answer
  • Need answers for Chemistry asap. Will give brainliest.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!