queenskmk9330
24.04.2020 •
Chemistry
How much 0.05 M of magnesium chlorate solution can be made by diluting 250 mL of 10 M HCL?
Group of answer choices
1.25 L
50L
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Ответ:
50 litres of magnesium chlorate solution can be made by diluting 250 ml of 10 M HCl.
The correct option is 2.
Explanation:
Data given:
Molarity of magnesium chlorate M1 = 0.05 M
volume of the magnesium chlorate V1 = ?
Molarity of the HCl solution = 10 M
volume of the HCl solution = 250 ml or 0.25 litres
the formula used is for dilution
M1V1 = M2V2
rearranging the equation to get the volume of magnesium chlorate solution,
V1 =
putting the values in the equation:
V1 =
V1 = 50 LITRES
thus the 0.05 M of the magnesium chlorate solution can be made by diluting the given solution with 50 litres.
Ответ:
Water is polar molecule, ionic compound dissolves in it as like dissolves like.
there is ionic interaction between a salt and water
Sugar has hydroxyl group in it. These hydroxyl group are able to form hydrogen bond with water molecule.
[Hydrogen bond : the interaction between a hydrogen, bonded with a highly electro-negative element (F,O,N) and other highly electro-negative element (F,O,N)]
Thus due to hydrogen bond sugar is soluble in water.
Explanation:The water molecules, , are polar, with positive partial charges on the hydrogen and a negative partial charge on the oxygen. This makes it possible to interact with ionic compounds such as salt (NaCl). This interaction occurs through the partially positive and negative ends of the water, so that the positive charges attract the negative ones. The NaCl salt in water dissociates (separates) into and ions. ions are surrounded by negative partial charges of water oxygen, while ions are surrounded by hydrogen ends with positive partial charge. In this way the salt is dissolved in water.
Sugar is a molecular compound formed by covalent bonds. In a polar covalent bond, electrons are shared unevenly. This creates a slightly negatively charged end and a slightly positively charged end. This is what happens with sugar. These extremes are those that interact with the positive and negative extremes of water, mentioned previously. Then it is possible to say that sugar dissolves in water because both substances are polar substances.
In short, water dissolves most of the substances that are polar or ionic, as in the case of sugar and salt.