A 50.00 (±0.03) mL portion of an HCl solution required 29.71(±0.03) mL of 0.01963(±0.0030) M Ba(OH)2 to reach an end point with bromocresol green indicator. The molar concentration of the HCl is calculated using the equation below (attached image): a.) Calculate the uncertainty of the result (absolute error). M=0.02333(±?????) M b.) Calculate the coefficient of variation for the result. CV= (Sy/y) x 100%

Q: This transformation is accompanied by a When heated to above 13.2 degrees Celsius, tin (Sn) transfor...

A:

Q: HO COH

A: Given reaction is : Add curved arrow(s) to draw step 3 of the mechanism. Modify the given drawing o...

Q: What mass of phosphoric acid, H 3PO 4 Would actually react with 7.17 grams of LIOH? 3LIOH + H3PO4 → ...

A:  

Q: 30.8 mg NaCl in 127.5 mL of solution Express the molarity in moles per liter to three significant fi...

A:

Q: Sugar is the solute and water is the solvent. The drink mix will be considered negligible and is add...

A: Calculate the concentration of sugar in this solution using the volume percent equation.,

Q: In the esterification of isoamyl acetate using isoamyl alcohol and acetic acid, a small volume of mi...

A: The esterification is a process in which an alcohol combines with acetic acid to form ester in an ac...

Q: How will calculate the mass in grams of one mole of a particular compound, if the given is only the ...

A: Given statement is : How will calculate the mass in grams of one mole of a particular compound, if t...

Q: How many grams of PbBr2 will precipitate when excess NH4Br solution is added to 66.0 mL of 0.601 M P...

A: Pb(NO₃)₂ + 2 NH₄Br → PbBr₂ + 2 NH₄NO₃ The number of moles of Pb(NO3)2 = 66.0 mL soln × (1 L soln / 1...

Q: Calculate the molarity of a solution that contains 10.0% sulfuric acid by weight. The density of thi...

A: Percent by weight (mass %) = 10.0 % Density = 1.07 gm/ml = 1070 gm/L (1 L = 1000ml)    

Q: Which of the following aqueous solutions are good buffer systems?

A:   Buffer solutions:  A solution which resists it's pH by addition of small amount of Strong acid (or...

Q: 1. Methanol is a high-octane fuel used in high-performance racing engines. Calculate AG for the reac...

A: Calculate Gibbs free energy of the given reaction--

Q: A solution is made by adding 0.320 g Ca(OH)2(s), 35.0 mL of 1.10 M HNO3 and enough water to make a f...

A: Given,  Mass of Ca(OH)2 = 0.320 g  Volume of HNO3 = 35.0 mL  Molarity of HNO3 = 1.10 M  Final volume...

Q: How many grams of NaCl would you need to make 100 ml of a 9.7%(m/v) solution of NaCl?

A: Given, a NaCl solution with concentration 9.7 % ( w/v)we are asked to calculate the amount of NaCl r...

Q: 6) Write and balance this reaction: zinc sulfate plus strontium bromide yields, write out the produc...

A:

Q: Write in the products, including stereochemistry where relevant, of the compound given in the photo ...

A:

Q: An iron ore was analyzed by dissolving a 2.9912-g sample in concentrated HCI. The resulting solution...

A: Given: Mass of ore sample used = 2.9912 g. And mass of Fe2O3 obtained = 0.8394 g.  

Q: write the ionic equation for Nacl+ AgNO3= AgCl+ NaNo3

A: Given chemical equation :  Nacl+ AgNO3= AgCl+ NaNo3   

Q: The equilibrium constant (K.) for the reaction PCI3 (g) + Cl2 (9) PCI5 (g) equals 49 at 230°C. If 0....

A:

Q: Calculate the molality of a solution that is 20.0% by weight acetic acid. Atomic weights: C = 12.01...

A:

Q: TITRATION DATA In the next part of the experiment, you used the standard solution of sodium oxalate ...

A: Calculation formula, 5M1V1= 2M2V2 M1=molarity of KMnO4 solution M2= molarity of oxalic Acid V1=volum...

Q: Gaseous butane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water. S...

A:

Q: of F. Hydrazine, N,H, reacts with oxygen to form nitrogen gas and water. If 3.75 g of N,H, reacts wi...

A:

Q: When heated to above 13.2 degrees Celsius, tin (Sn) transforms from is accompanied by a to This tran...

A: This is allotropic transition of tin . At this particular temperature , white tin transform to grey ...

Q: Calculate pH for a weak base/strong acid titration. Determine the pH during the titration of 31.8 mL...

A:

Q: The equilibrium constant, Kc, for this reaction is 55. H2(g)+I2(g)⇌2HI(g) If the equilibrium mixture...

A: Chemical equilibrium is defined as the stage at which both reactant and product are in equilibrium. 

Q: Write the balanced equation for the complete oxydation of C4H8O.

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both...

Q: If E°cell >0, then Group of answer choices ΔG° =0 and K>1. ΔG° 1. ΔG° 0 and K0 and K=1.

A: To solve this problem we will use the concept of electrochemistry and thermodynamics .

Q: Precipitation is the opposite of dissolution. Group of answer choices True False

A:

Q: 3 The synthesis of methanol from carbon dioxide and hydrogen has a AG°= -25.1 kJ/mol. What is the va...

A: At equilibrium Gibbs free energy  ∆G0 = - RT ln K  ∆G0= - 25.1 KJ / mol R = 0.008314 KJ / mol k T = ...

Q: MgO has a face-centered cubic unit cell in which the O2- anions occupy corners and face centers, whi...

A: First we would Calculate edge length using density formula .  Then for face-centred cubic unit, we c...

Q: How many grams of sodium carbonate is needed to prepare 3.0L of 0.10N solution? Atomic mass: Na =22...

A:

Q: Photosynthesis can be represented by 6CO2(g) + 6H2O(1) = C,H12O6(s) + 602(g) Which of the following ...

A:

Q: 11) Which reaction will shift to the right in response to a decrease in volume? A) N2 (g) + 3H2 (g) ...

A: To identify: The reactions that will shift to the right due to decrease in the volume.  

Q: Select True or False: Consider the reaction N2(g) + 3H2(g) = 2NH3(g). When hydrogen gas is added to ...

A: Given,  When hydrogen gas added to a system at equilibrium the reaction will shift to:

Q: The molar concentrations for the reactants and products at equilibrium are found to be [HCl]=0.80 M,...

A: Given :-  4HCl(g)+O2(g)⇌2Cl2(g)+2H2O(g)  [HCl]=0.80 M [O2]=0.20 M [Cl2]=3.0 M [H2O]=3.0 M  To be cal...

Q: solution is 3.75. what is the percent ionization for

A: Concentration of Acid(C) = 0.012 M pH = 3.75 pH = -log([H+)] = 3.75 [H+] = 10-3.75 = 0.000178 M  

Q: Calculate DS°m when ice at 100 K (D = delta and m = subscript for molar entropy--same for Cp,m being...

A: Overall process can be represented as: H2O(s),100 K→H2O(g), 500 K

Q: HO 2. -6 steps H2N + any 1C reagents OH

A: The crucial steps for the given conversion are 1. Protection of carbonyl 2. Reaction with grignard 3...

Q: How would you use a Grignard reaction on an aldehyde or ketone to synthesize the following compounds...

A: The Grignard reagent reacts with an aldehyde to form secondary alcohol and it reacts with a ketone t...

Q: Could you please complete the reaction equation with the correct chemical formula for the product an...

A:

Q: If 2.00 moles of H2 and 1.55 moles of O2 react how many moles of H20 can be produced in the reaction...

A: In this question, 2.00 moles of H2 and 1.55 moles of O2 react, then how many moles of H2O can be pro...

Q: Five grams of vinegar solution was given to you to analyze for the percent acetic acid present in th...

A: To calculate percent mass , we would need to calculate mass of acetic acid in vinegar solution.  For...

Q: Lithium metal reacts with nitrogen gas to form lithium nitride. Identify the balanced reaction that ...

A:

Q: In a neutralization reaction in a well-insulated calorimeter, 112.9 g of 1.2915 M NaOH were added to...

A: Given: Mass of NaOH solution = 112.9 g. Mass of HCl solution = 129.1 g. concentration of NaOH = 1.29...

Q: 0.0 M sucrose = _______ 4.6 - 4.3630 = 0.008_____________ g/min 0.4 M sucrose = ________ 4.2 - 4.593...

A: The data given is,  

Q: A 25.0 mL solution of acetic acid which is initially 1.0 mM CH3COO and 4.0 mM CH3COOH is titrated wi...

A: Given: Volume of solution = 25.0 mL = 0.025 L                                    (Since 1 L = 1000 m...

Q: The oxidation of ammonia into nitric oxide is an exothermic process. 4NH,(g) + 50,(g) : = 4NO(3) + 6...

A: Since you have posted multiple sub-parts questions, as per our company guidelines we are supposed to...

Q: Part D Calculate the standard-state entropy for the following reaction: 1 CH4(g) + 2 O2(g) → 1 CO2(g...

A: Given,  Sm° (H2O) = 189 J/K.mol  Sm°(O2)  = 205 J/K.mol  Sm°(CH4) = 186 J/K.mol  Sm° (CO2) = 214 J/K...

Q: Refer to the (unbalanced) equation CS2 + Cao – CO2 + CaS. How many grams of CaS are produced if 53 g...

A: Weight of CO2= 53 gram  CS2+CaO-> CO2 + CaS     

Q: The density of a metal is calculated as follows. The weight of 57.4 grams is divided by the volume 6...

A: The mass per unit volume of a substance is known as the density of the substance. The density of a s...