Ptd akeAssignment/takeCovalentActivitydo?locat or assignment take? takeAssignnen

Question

Ptd akeAssignment/takeCovalentActivitydo?locat or assignment take? takeAssignnentSessir locator a a @ 0 Use thr Refmares t. arress imparta" vaka" see for this que·tan. Potassium boydrogen phthalate is a solid, mosoprotic acid frequently used in the laboratory to standardize strong base solutions. It has the unwieldy foruula of KHCgH4O4 This is ofiten written in shorthand sotation as KHP what volume of a 0,462 M sediin hydrodde solation is needed to eactly netralize .36 gr ANSWER ofKFIP ? mL, sodium hydrexide Retry Entire Group 8 more group attempts remaining

Explanation / Answer

potassium hydrogen phthalate possess molecular weight 204.22 g·mol1

given weight 3.36 g

number of moles is given by weight / molecular weight = 3.36 / 204.22 = 0.016 moles

given molarity of sodium hydroxide = 0.462 = 462/1000 ---> mol of substance / volume in liters

molecular weight of NaOH = 39.997 g/mol = 40.0 g/mol

number of moles of NaOH = 462 mol

relation between molarity and volume is given by molarity = number of moles / volume of solution

at an equilibrium condition M1V1 = M2V2

density of KHP is = 1.64 g/cm³ tha means

volume of KHP = mass/ density = 3.36/1.64 = 2.04 ml (1 cm 3 = 1 ml)

now M1 = 0.016 V1 = 2.04 ml, M2 = 0.462 V2=?

therefore V2 = M1V1 / M2 ---> V2 = (0.016X2.04) / 0.462 = 0.070 ml.

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.