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HACTEHA [7]
2 years ago
13

Science pls helppp?!

Chemistry
2 answers:
hichkok12 [17]2 years ago
6 0

Answer:

2nd one down

Explanation: distance divided by time interval

ch4aika [34]2 years ago
3 0
Your doing great keep up the good work
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3 years ago
Exercise 2: (7 points)
Marat540 [252]

Answer:

See explanation

Explanation:

I) from the question;

500 × 10^-3 g dissolves in 100ml

xg dissolves in 1000ml

x = 500 × 10^-3 g × 1000ml/100 ml

x= 5 g/L

Mass concentration = molar concentration × molar mass

Molar concentration = Mass concentration/ molar mass

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ii) To prepare this solution, measure out 500mg with a weighing balance. Transfer the solid to a standard 100 ml volumetric flask. Make up to the 100ml mark with distilled water.

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Mass of solid = 5g

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