3 years ago

Which statement best represents a hypothesis?

Chemistry

1 answer:

mr_godi [17]3 years ago

4 0

Answer:

Explanation: B

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Answer:

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Explanation:

Hardness of the water is generally due to the presence of $CaCO_3$ in water.

At equivalence point

Moles of $Ca^{2+}$ = Moles of EDTA

Considering

$Molarity_{Ca^{2+}}\times Volume_{Ca^{2+}}=Molarity_{EDTA}\times Volume_{EDTA}$

Given that:

$Molarity_{EDTA}=0.020\ M$

$Volume_{EDTA}=4.86\ mL$

$Volume_{Water\ or\ Ca^{2+}}=25.00\ mL$

So,

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5.03x109−42.6x108

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Which statement best represents a hypothesis￼?

Which statement best represents a hypothesis?