2. How many grams of NaOH are contained in 250 mL of 0.500 M NaOH?
0.125 g 5 g 10 g 0.25 g 0.5 g
3. A 0.107 g sample of an unknown diprotic acid is titrated to the equivalence point using 50.0 mL of 0.206 M NaOH. Calculate the molar mass of the acid.
0.00515 g 20.8 g 0.0103 g 36.5 g 147 g
4. Van't Hoff's factor, i is incoporated into some equations due to
a constant value that adjust for the pressure in the lab some electrolytes break up into ions a correction factor that makes data match up with hypothesis Van't Hoff factor I is a constant that corrects all osmotic equations none of the above
5. HCl reacts with NaOH to form water and NaCl. What volume of 0.500 HCl is required to yield 2.00 g of NaCl?
0.0684 mL 0.0342 mL 68.4 mL 34.2 mL None of these
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