Question

MODICU nis or the summer 04 De PRE-LAB QUESTIONS 1. What are the common names for sodium bicarbonate and acetic acid, and what are some everyday uses for them? Sodium bicarbonate: burcing soda Aretic acid. ethanoi used for cooking uses in leavening Treating tar infections used for heat burning Condiments . Mouth wash Perfumes •Whitening teeth Inks and dyes 2. Write and balance the equation for the reaction of sodium bicarbonate and acetic acid. Include all states of matter. CH3 (004 + NaHCO3 -CHCOONa+102 +H2O 3. What type of reaction is this? Acid-base reaction 4. Use your balanced equation to answer the following question. If given 2.0g of sodium bicarbonate and 20.00 mL of 1.OM acetic acid, which is the limiting reactant? Show your work for full credit. Imole Aretic acid 84.007 Zg Nattios -.0238 20ML 10.001 ImL = .02 5. Assuming the temperature is 25.0°C and the pressure is 1.0atm, how many moles of gas are produced? Use your limiting amount of moles from question 4. 1

Answer 1

c Compound common Name unes Sodium bicarbonat e Teeth whitener Baking Soda (loth Rinning cleaning agent for floors Antacid Ethanoic acid Vinegar Acetic acid latex in Rubber Indontay Food Additive Synthetic fibre Q (a?) > CH3COONa+ 102 + H2O (aq) NaHCO3(S) + CH₃ Cook" Sodium Bicarbonate Acetic acid Sodium acetate As Acetic acid in weak acid & Narog in bare this ir a core of Acid-Bare reaction or Neutrabization Rxn.

0 4. Use your balanced equation to answer the following question. If given 2.0g of sodium bicarbonate and 20.00 mL of 1.0M acetic acid, which is the limiting reactant? Show your work for full credit Imole Acetic acid 2g Natt(03 =.0238 84.007 20ML 0.001 = .02 5. Assuming the temperature is 25.0°C and the pressure is 1.Oatm, how many moles of gas are produced? Use your limiting amount of moles from question 4. (aq) NaHCO3(S) + CH₃ Cooke Sodium Bicarbonate Acetic acid (aq) (H₂ cooNa + (02 + H₂O caε] sodium acetate Give man of Natio3 29, molar man of Natio3 NaHCO3 = 84 g/mol noi of moler of Na 103 = 0.024 moles Given mann molar man 2 84 Molarity of Acetic acid =lom, volume of are acetic acid=20ml soon Molarity = no. of moles =) no. of molei = molarity x volume (4) Volume lina) noi - of moler 1.0x20010-3 moles 0.02 moles According to Eqh Imole of Nak 103 reacts with Imole of CH3look 0.024 mole Naklo 3 reacts with 0.024 molen (H3100H but we have only 0.02 molen CH3600H & Hence CH groot is limi limiting reagent.

Oso I mole CH3COOH will produce mole produce Imole of (02 0:02 mole CHz cool will produce 0.02 mole o Соу. of