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If I add 2.75 g of CaO to 155 mL of distilled water, what will be the concentration of the solution be?

Respuesta :

lorenamuresan
M = m/L
moles of CaO = 2.75g / molar mass
2.75g/ 56.08g = 0.049moles CaO
155mL / 1000 = 0.155 L
M= 0.049moles/0.155L
M=0.316

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