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- Determine the coefficient for each ion of math] and 10, for 0.00639M of Ba(1O,)2. yBa = Type your answer here yl03 = Type your answer here6ab answer bothWrite the Ksp expression for the sparingly soluble compound silver cyanide, AgCN. If either the numerator or denominator is 1, please enter 1. Ksp = Submit Answer Retry Entire Group 8 more group attempts remaining
- HBR, O2, CH3OH all have comparable molecular masses. List the dominant type of IMF for the pure substances, then rank the strength of each compound based on IMFs within the samples. (1 = strongest 2= in between 3 = weakest ) Substance IMF Relative Strength HBR O2 CH3OHExperiment-A8: Spectrophotometry of Cobalt( Pre-laboratory Exercises 1. (a) Define Beer's law and give the mathematical equation (specify each symbol in the equation). concentration of achemical Solution Beer's Law states that the in the following A = Ebc is directly proportional to its absorption of light & can be calculated formula (b) Briefly explain what Beer's plot is and how do you obtain the Beer's constant (k) from the plot. is a straight line with _ay-intercept Beer's plot of zero & a slope of ab oreb. It represents the absorptunity the length Absorbance 8 can be calculate by multiplying Constant by the path length then dinding that value by the 2. The following solutions are prepared from 0.200 MNICI, and their absorbance measured at 725 nm. Solution # 1 2 3 4 5 Volume (mL) of 0.200 M NiCh 1.00 2.00 3.00 4.00 pride 5.00 Volume (mL) of H₂O 4.00 3.00 2.00 1.00 0.00 INICI] (a) Calculate the molar concentration of NiCl₂ in each solution 1-5. Absorbance at 725 nm 0.105 0.210 0.315…Need help with these 2 questions and only have 1 attemept left and so far I have been getting them wrong?
- Chemistry 1-5. How do you make 0.5 L of pH 7, 0.1 M phosphate buffer (pKa=7.21) with NaH₂PO, (MW 119.98) and Na₂HPO4 (MW 141.96)? Hint: Look for the molecule that has more H to be HA; pH = pka + log [A-]/[HA]; MW = g/mole, M=mole/liter Ans: Weight 3.71 g NaH₂PO4 and 2.71 g Na₂HPO4, add water to make total volume of 0.5 L.Pls do Asap...! Pls do que 1 as soon as possibleoverall aden fn tereactiorabwe! .20 what is te overall aae for tereactrobre! 200 0.00 8.00xl0 1. 0. 1000 200x1o? Trual A +BSAB On 12
- When using a Gran plot to determine the equivalence point, we must use the data after the equivalence point. Group of answer choices True FalseI Review | Cor Submit Previous Answers Correct Part C 4 mol B ΑΣφ JAH| = kJ Submit Request Answer Part D3:18 AM Wed Mar 1 Question 26 of 26 Calculate the [NH3] in a solution of 0.260 M ammonium cyanide (NH4CN). Hint: Use the Ka of HCN (4.9 x 10-¹0) and the Kb of NH3 (1.8 x 10-5) to calculate Kc for the reaction NH4+ (aq) + CN (aq) = NH3(aq) + HCN(aq). or pull up for additional resources