A student receives a solution of 2.750 M NaOH to titrate with 12.00 mL of an unknown solution of HCl. The titration requires 19.50 mL. What is the Molarity of the unknown solution of HCl? M

1.692 M is the molarity of the unknown solution of HCl.

Explanation:

To calculate the concentration of acid, we use the equation given by neutralization reaction:

where,

are the n-factor, molarity and volume of acid which is

are the n-factor, molarity and volume of base which is NaOH.

We are given:

Putting values in above equation, we get:

1.692 M is the molarity of the unknown solution of HCl.

4.46875 M.

Explanation:

Equation of the reaction

NaOH + HCl --> NaCl + H2O

Molar concentration = number of moles/volume

Number of moles = 2.75 × 0.0195

= 0.0536 mol

By stoichiometry, 1 mole of HCl reacted with 1 mole of NaOH.

Therefore,

Number of moles of HCl = 0.0536 mol.

Molar concentration in 12 ml = 0.0536/0.012

= 4.46876 M.

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health implications of pesticides

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other important considerations

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the term hydride is commonly named after binary compounds that hydrogen forms with other elements of the periodic table. hydride compounds in general form with almost any element, except a few noble gases. the trends and properties vary according to the type of intermolecular force that bonds the elements together, the temperature, its molecular masses, and other components. hydrides are classified into three major groups, depending on what elements the hydrogen bonds to. the three major groups are covalent, ionic, and metallic hydrides. formally, hydride is known as the negative ion of a hydrogen, h-, also called a hydride ion. because of this negative charge, hydrides have reducing, or basic properties. its special characteristics will be further discussed.

explanation: