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arsen [322]
3 years ago
13

What is the concentration of a 500 mL solution with 25 mol of HF? Write your answer with TWO decimal places and round accordingl

y. ______M
Chemistry
1 answer:
statuscvo [17]3 years ago
3 0

Answer:

23

Explanation:

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AnswersChemistryGCSEArticle

What is the mass (g) of 0.25mols of NaCl?

What you need for these equations are a calculator, periodic table and the following equation:

Mass (g) = Mr x Moles (important equation to remember)

In this case we already know the moles as it's in the question, 0.25 moles.

to find the Mr, you need to look at your periodic table. Find the relative atomic mass of Na and Cl and add the two numbers together.

Na = 22.99

Cl = 35.45

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Now just put all of the numbers into the equation.

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