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7nadin3 [17]
2 years ago
5

How many moles are in 75.0g of Na2CO3

Chemistry
1 answer:
emmasim [6.3K]2 years ago
8 0

Answer:

75g/106g = 0.71 moles

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Assume that acid rain has lowered the ph of a particular lake to ph 5.0. what is the hydroxide ion concentration of this lake?
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That acid rain has lowered the ph of a particular lake to ph 5.0. the hydroxide ion concentration of this lake is

1 × 10^-9 mol of hydroxide ions per liter of lake water

 pH  +  pOH  =  14

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the hydroxide ion concentration of this lake is 1 × 10^-9 mol

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