Answer:
Explanation:
Increasing the solute would increase the concentration. Increasing the solvent would decrease the concentration. For instance, if your lemonade was too tart, you would add more water to decrease the concentration. If your tea was too bitter, you could add more sugar to increase the sweetness. Changing the amounts of solute and solvent directly effect the concentration of the solution.
Answer:
( A ) Increases
Explanation:
More room, basically means more creatures. Like in a bedroom, you can only fit amount of people if its small the ocean is like that with depth.
Hopefully this makes sense???
Answer:
Write a balanced chemical reaction:
N2 + 3H2 ==> 2NH3
Looking at the mole ratios in this balanced equation you can see it takes 3 moles H2 to make 2 moles NH3. So, next calculate the moles of NH3 represented by 1.80 g and then convert to moles of H2 needed:
moles of NH3 = 1.80 g x 1 mole/17 g = 0.106 moles NH3
Moles H2 needed = 0.106 moles NH3 x 3 moles H2/2 moles NH3 = 0.159 moles H2 needed
Grams H2 needed = 0.159 moles x 2 g/mole = 0.318 grams H2 needed
Explanation:
It rusts more in wet climates because it is water and when water hits the automobile there is a chemical reaction. If the water is salt water it will cause it to rust quicker.
Let us assume that there is 1 mole of the solution present. The mass becomes:
Mass = fraction of carbon dioxide * Mr of carbon dioxide + fraction of water * Mr of water
Mass = 0.25*44 + 0.75*18
Mass = 24.5 grams
Now, we determine the volume of the solution using:
Volume = mass / density
Volume = 24.5/1 = 24.5 mL
The molarity of a solution is:
Molarity = moles / liter
Molarity = 0.25 / 0.0245
Molarity = 10.2 M
