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docker41 [41]
3 years ago
11

A sample of seawater contains 78.0 grams of NaCl in 2,025 mL of solution. If the molar mass of NaCl is 58.443 g/mol, what is the

molarity of this sample?
0.659 M NaCl
0.823 M NaCl
1.84 M NaCl
2.08 M NaCl
Chemistry
2 answers:
DENIUS [597]3 years ago
4 0

Answer:

that would be 0.659 M NaCl

Olin [163]3 years ago
4 0

Answer:

0.659 M NaCl

Explanation:

Equation: Molarity = moles of solute / liters of solution

1. To find moles of solute:

78.0 g NaCl x 1 mol NaCl / 58.44 g NaCl

= 1.334 mol NaCl

2. Calculate molarity

Transfer 2,025 mL to L

1.334 / 2.025 = 0.659 M NaCl (rounded)

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Hello! Id like if someone could tell me this answer, thank you so much!
DaniilM [7]

Answer:

Option D. ZnCl₂ and H₂

Explanation:

From the question given above, the following equation was obtained:

2HCl + Zn —> ZnCl₂ + H₂

Products =?

In a chemical equation, reactants are located on the left side while products are located on the right side i.e

Reactants —> Products

Now, considering the equation from the question i.e

2HCl + Zn —> ZnCl₂ + H₂

The products are ZnCl₂ and H₂ because from our discussion above, we said that products are only located on the right side of chemical equation.

Thus, option D gives the correct answer to the question.

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3 years ago
Who is considered the father of atomic theory?
Sati [7]

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4 years ago
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A student was given two clear liquids; a colorless liquid and a dark-blue liquid. The student was asked to combine the liquids i
Anon25 [30]

Answer:

The correct option is;

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Explanation:

Here we have the initial color as

1. Colorless and

2. Dark blue

We analyze each of the results as follows

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c) The resulting liquid was light blue

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7 0
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Viktor [21]

Answer:

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Explanation:

6 0
3 years ago
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g Consider the reaction when aqueous solutions of potassium hydroxide and ammonium bromide are combined. The net ionic equation
vichka [17]

Answer:

K^+(aq) + Br^-(aq) -----> KBr(aq)

Explanation:

The net ionic equation shows the actual reaction that occurs in the system. The molecular reaction equation includes the spectator ions but the net ionic equation does not include the spectator ions.

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Hence, for the reaction of potassium hydroxide and ammonium bromide, we have;

K^+(aq) + Br^-(aq) -----> KBr(aq)

8 0
4 years ago
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