chemistry problems?

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How many milliliters of a 355 NaCl solution should be used to prepare a liter of 0.90% NaCl solution?

Determine the amount of 0.50Eq/L Ca(OH)2 required to titrate 10.0 ml of a 2.50 Eq/L HCl solution?

How much Ca3(PO4)2 is needed to prepare 2.00 deciliter of a 100 mg/dL calcium solution?

2007-05-31 17:33:20 · 1 answers · asked by prime7 2 in Science & Mathematics ➔ Chemistry

First chemistry problem should be 35% not 355. -sorry

2007-06-01 15:31:17 · update #1

1 answers

355 NaCl ????????????

50

200 mg

2007-06-01 05:52:05 · answer #1 · answered by ag_iitkgp 7 · 0⤊ 0⤋