1. Which of the following are equivalent to a concentration of 1 Molar? 1 mol in

Question

1. Which of the following are equivalent to a concentration of 1 Molar?

1 mol in 100 mL

1% (weight per volume)

58.44 g of NaCl (molecular weight = 58.44) dissolved in water to give 1 L of solution

58.44 g of NaCl (molecular weight = 58.44) dissolved in water to give 100 mL of solution

1 x 106 M

5.84 g of NaCl (molecular weight = 58.44) dissolved in water to give 100 mL of solution

1000 mM

1 mmol/mL

1 mol/mL

1 mol/L

1000 M

2. Which of the following are equivalent to a concentration of 1 millimolar?

0.01 M

1000 M

1 mmol/mL

1 mol/mL

0.001 M

1000 nM

"1 in 1000" dilution of a 1 M solution

1 mmol/L

1 mL of 0.1 M NaCl solution mixed with 99 mL milli-Q water

1 mol/mL

Explanation / Answer

1. Which of the following are equivalent to a concentration of 1 Molar?

1 mol in 100 mL

1% (weight per volume)

58.44 g of NaCl (molecular weight = 58.44) dissolved in water to give 1 L of solution

58.44 g of NaCl (molecular weight = 58.44) dissolved in water to give 100 mL of solution

1 x 106 M

5.84 g of NaCl (molecular weight = 58.44) dissolved in water to give 100 mL of solution

1000 mM

1 mmol/mL

1 mol/mL

1 mol/L

1000 M

2. Which of the following are equivalent to a concentration of 1 millimolar?

0.01 M

1000 M

1 mmol/mL

1 mol/mL

0.001 M

1000 nM

"1 in 1000" dilution of a 1 M solution

1 mmol/L

1 mL of 0.1 M NaCl solution mixed with 99 mL milli-Q water

1 mol/mL

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