What is the concentration in g/L of a NaOH solution prepared with 2.5 g in 500 mL? Physiological serum is prepared with 0.9% NaCl, what mass of NaCl is required for the prepare 500 mL of serum? It is desired to prepare 500 mL of washing acid (HCl 0.1 mol/L). What is the volume of this Is acid necessary? (Data: d = 1.19 g/mL and 37% purity). An aqueous solution of nitric acid (HNO3) has a concentration of 25 g/L. Determine the mass of acid present in 500 mL of solution and in % (m/v)? What type of interaction is there between the molecules below: a) CH4 and CH4 b) H2O and H2O c) HCl and HCl Of the following molecules, make the Lewis representation and provide the molecular geometry and its polarity. a) H2O b) CO2 c) NH3

Answer to a math question What is the concentration in g/L of a NaOH solution prepared with 2.5 g in 500 mL? Physiological serum is prepared with 0.9% NaCl, what mass of NaCl is required for the prepare 500 mL of serum? It is desired to prepare 500 mL of washing acid (HCl 0.1 mol/L). What is the volume of this Is acid necessary? (Data: d = 1.19 g/mL and 37% purity). An aqueous solution of nitric acid (HNO3) has a concentration of 25 g/L. Determine the mass of acid present in 500 mL of solution and in % (m/v)? What type of interaction is there between the molecules below: a) CH4 and CH4 b) H2O and H2O c) HCl and HCl Of the following molecules, make the Lewis representation and provide the molecular geometry and its polarity. a) H2O b) CO2 c) NH3

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