Answer:
The concentration of the solution is 5.8168 × mol.
Explanation:
Here, we want to calculate the concentration of the solution.
The unit of this is mol/dm^3
So the first thing to do here is to calculate the number of moles of the solute present, which is the number of moles of AlCO3
The number of moles = mass/molar mass
molar mass of AlCO3 = 27 + 12 + 3(16) = 27 + 12 + 48 = 87g/mol
Number of moles = 33.4/87 = 0.384 moles
This 0.384 moles is present in 660 L
x moles will be present in 1 dm^3
Recall 1 dm^3 = 1L
x * 660 = 0.384 * 1
x = 0.384/660 = 0.00058168 = 5.8168 * 10^-4 mol/dm^3
Answer: c
Herbivore that feeds on primary consumers
Explanation:
Answer:
Hydrogen bonding
Step-by-step explanation:
The O-H bonds in water are highly polar.
There is an especially strong type of dipole-dipole attraction between the partially positive H atom in one molecule and the partially negative O atom on a nearby molecule.
We call this type of intermolecular force hydrogen bonding.
The strong attractive forces mean that we must supply extra energy to separate the molecules from each other.
Water therefore has an <em>unusually high boiling point
.</em>
The yield of ammonia rises as reaction pressure is raised. The yield of ammonia in the reaction actually declines as reaction temperature rises.
<h3 /><h3>What is ammonia ?</h3>
Ammonia, the simplest pnictogen hydride and a stable binary hydride, is a colorless gas with a strong, pungent odor. It contributes considerably to the nutritional demands of terrestrial creatures by serving as a precursor to 45 percent of the world's food and fertilizers. Biologically, it is a common nitrogenous waste, especially among aquatic animals. About 70% of ammonia is used to create fertilizers, including urea and diammonium phosphate, in a variety of shapes and compositions. Additionally, pure ammonia is sprayed straight onto the ground.
To learn more about ammonia from the given link:
brainly.com/question/12276882
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Answer:
D.phototropism
Explanation:
Phototropism is a type of tropism in which a plant or plant part responds to light. According to this question, a student wanted to investigate the effect of light on the growth of cress seedlings. The student used three different pots for the experiment.
Pot 1 was placed with light from above. Pot 2 was placed in a cupboard with no light. Pot 3 was placed in a window with light from one direction only. However, the image attached to this question shows that the plants in the different pots face different directions in response to light, which depicts phototropism