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aleksley [76]
3 years ago
8

What is the mass of the solution when 1 pound of salt is dissolved in 20 pounds of water?

Chemistry
1 answer:
kotykmax [81]3 years ago
5 0

Answer:

Explanation:

The dissolution of salt in water is basically a physical process and the law of conservation of mass which states that mass can neither be created nor destroyed applies. The mass of each component before dissolution will be same after dissolution.

When one pound of salt is dissolved in 20 pounds of water, the resulting solution will weigh 1+20 pounds.

mass of solution = mass of salt + mass of water

   = 1+20

mass of solution = 21 pounds

Have a nice day

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Oxidation/reduction (redox) reactions like this: 2H2(g) + O2(g) ⇒ 2H2O(l) will occur spontaneously. To make the reaction proceed
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A factor that changes in an experiment from manipulation of the independent variable is the what?
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Explain why current flowing indicates the presence of ions
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3 years ago
Some people must eat a low-sodium diet with no more than 2,000 mg of sodium per day. By eating 1 cracker, 1 pretzel, and 1 cooki
Leni [432]

Answer:

The amount of sodium is 32 mg per cracker, 49 mg per pretzel and 68 mg per cookie.

Explanation:

Let's assume amount of sodium is x mg per cracker, y mg per pretzel and z mg per cookie.

So, the following three equations can be written as per given information:

x+y+z = 149 ........(1)

8y+8z = 936 ........(2)

6x+7y = 535 .........(3)

From equation- (2), y+z = \frac{936}{8} = 117

By substituting the value of (y+z) in equation- (1) we get,

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By substituting the value of x into equation- (3) we get,

                           y = \frac{535-(6\times 32)}{7} = 49

By substituting the value of y  into equation- (2) we get,

                           z = (117-49) = 68

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6 0
3 years ago
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