رد: كككيميـآ ::( تـآئـم َ )::
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10.A 22.0 mL of 1.66 M KMnO4 solution is mixed with 16.7 mL of 0.89 M KMnO4 solution. Calculate the concentration of the final solution.
3.33 M4.33 M0.33 M1.33 M
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4.What mass of Li3PO4 is needed to prepare 204.0 mL of a solution having a lithium ion concentration of 0.167 M?
1.32 g0.6 g5.32 g2.32 g
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9.How many milliliters of water must be added to111 mL of 0.15 M Na2CO3 to prepare 0.05 M Na2CO3?
224.0 ml218.0 ml222.0 ml223.0 ml
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