To measure the amount of citric acid (CH0(cO,H)in a certain candy, an analytical chemist dissolves a...
To measure the amount of citric acid (C,H,O(CO,H), in a certain candy, an analytical chemist dissolves a 14.0 g sample of the candy in 150 ml. of water and titrates this solution to the endpoint with 10.6 ml. of 0.2500 M sodium hydroxide (NaOH) solution. The balanced chemical equation for the reaction is: C,H,0(CO,H) (aq) + 30H" (ag) - CH.0(CO) " (aq) + 3H20 (1) Oprecipitation acid-base O redox PO X 5 What kind of reaction is this? ? If...
To measure the amount of iron in a certain type of iron ore, an analytical chemist dissolves a 24.00 g sample in strong acid and titrates it to the endpoint with 28.8 ml. of 0.4400 M potassium permanganate (KMn0) solution The balanced chemical equation for the reaction is: SH (aq)+SFe (aq) + MnO, (ag) SFe (a)+ Mn(ag) + 4H,0(0 dh Oprecipitation What kind of reaction is this? acid-base X Oredox If you said this was a precipitation reaction, enter the...
To measure the amount of iron in a certain type of iron ore, an analytical chemist dissolves a 38.00 g sample in strong acid and titrates endpoint with 316 mL of 0.350 M potassium permanganate (KMnO) solution. to the The balanced chemical equation for the reaction is: 8H+ (aq) + SFe? (aq) + Mno, (aq) - SF2 (aq) + Mn? (aq) + 4H,00) What kind of reaction is this? O precipitation acid- base O redox х 5 ? D D...
O RE BEACTIONS Solving a redox sitration problem To measure the amount of calcium carbonate (CaCO) in a seashell, an analytical Chemist crushes a 3.20 g sample of the shell to a fine powder and titrates it to the endpoint with 375. ml. of 0.1500 M hydrogen chloride (HCI) solution. The balanced chemical equation for the reaction is: 2HCl(aq) + Co (aq) → H2CO3(aq) + 2a" (aq) What kind of reaction is this? Oprecipitation acid-base redox If you said this...
To measure the amount of nickel in some industrial waste fluid, an analytical chemist adds 0.200 M sodium hydroxide (NaOH) solution to a 20.00 g sample of the fiuid and collects the solid nickel (II) hydroxide (Ni(OH) product. When no more Ni(OH), is produced, she filters, washes and weighs it, and finds that 0.288 g has been produced. The balanced chemical equation for the reaction is: Ni (aq) +2NaOH(aq) Ni(OH),)+2Na (aq) 4 Oprecipitation acid-base What kind of reaction is this?...
To measure the concentration of an aqueous solution of H.O an analytical Chemists endpoint with 72.9 ml 0.3200 Mpotassium permanganate ( 0) solution strong acid to 450 gaple of the solution and rates it to the The balanced chemical ecuation for the reactions: 6H(aq) SH..(aq) + 2Mno, Goy) - 50.6) + 2Malas) + 8H,000 What kind of reaction is this? precipitation redox XS ? you said this was a precipitation reaction enter the chemical formula of the precipitate you said...
To measure the amount of nickel in some industrial waste fluid, an analytical chemist adds 0.460 M sodium hydroxide (NaOH) solution to a 23.0 g sample of the fluid and collects the solid nickel II) hydroxide (Ni(OH)2) product. When no more Ni (OH) is produced, he filters, washes and weighs it, and finds that 206. mg has been produced The balanced chemical equation for the reaction is: Ni2+(aq) + 2NaOH(aq) Ni (OH)2(s) + 2Na+ (aq) ■ precipitation x 10 acid-base...
Experiment 13 - Acid and Bases Worksheet 1. Arrhenius theory acid-base reactions can also be classified as double replacement reactions. For each reaction below. predict the products, write the total ionic equation and the net ionic equation HCIO (aq) + Mg(OH),(aq) Total lonic: Net lonic: b. HNO,(aq) + Na CO (aq) → Total lonie: Net lonie: 2. In Bronsted-Lowry theory, an acid-base reaction always produces another acid base set referred to as conjugales. For each of the reactions below. predict...
Acid / Base Titrations: Pre-Laboratory Assignment 1. Give at least two characteristics desirable in a primary standard. 2. Define equivalence point and bitration end point. Do these two points in a titration occur when the same volume of titrant has been added? Explain. 3. A student standardized a NaOH solution using KHC.H.O.. Three different KHC.H.O. samples were dissolved in water and titrated with the same NaOH solution, each to a phenolphthalein end point. The pertinent reaction is: KHC3H404(aq) + NaOH(...
53) A buffer solution contains carbonic acid (H CO) and sodium bi carbonate (NaHCO), each at a concentration of 0.100 M. The relevant equilibrium is shown below. What is H:COs(ag)+ HOo (a)+HCOs (ag) K.-4.5x 10 54) At 40 C, the pH of water is 6.77, what is lon-Prodact Constant for Water, Kw.at 40°C 55) If a solution of acetic acid has a pH-2.74 and a pK474, wh in the solution? Show your calculations is the ratio of (CH Co/ICOH) 56)...