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KATRIN_1 [288]
3 years ago
8

What mass of sodium hydroxide is needed to make 12.5 L of a 0.150M solution?

Chemistry
1 answer:
raketka [301]3 years ago
5 0

Answer:

75g

Explanation:

n=Cmxv

=0,15x12,5

=1,875 mol

m=nxM

=1,875x40

=75g

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We can use the heat equation,
Q = mcΔT 

where Q is the amount of energy transferred (J), m is the mass of the substance (kg), c is the specific heat (J g⁻¹ °C⁻¹) and ΔT is the temperature difference (°C).
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Answer: A dilation with rule: (x,y)\to(\dfrac12x,\dfrac12y)

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