3 mls = 3/5th of a teaspoon (since 5 ml = 1 tsp).
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To find the volume of 0.400 M solution to add, you can use the dilution formula C1V1 = C2V2: (0.400 M)(V1) = (0.160 M)(10.0 mL) V1 = (0.160 M)(10.0 mL) / 0.400 M V1 = 4.0 mL Therefore, 4.0 mL of the 0.400 M solution should be added to water to achieve a total volume of 10.0 mL with a concentration of 0.160 M.
A concentration of 110 M or 106 M doesn't exist.
150 mL of a 2.5 M lidocaine solution contain 87,9 g.
There are 1 g/mL in 1 kg/m^3. This is because 1 kg/m^3 is equivalent to 1000 g/L, and since 1 L is equal to 1,000 mL, 1000 g/L is equivalent to 1 g/mL.
density = mass / volume Given mass = 240 g = 240*10^-3 kg volume = 200 mL = 200*10^-6 m^3 Hence density = 1.2*10^3 kg/m^3 Or 1200 kg/m^3