tion 29 2+ 5.00ml of 0.01130M Ca is mixed with 5.00ml of 0.0125M SO form. The...
Hi there, I am limited on my subscription. Can you answer these two please? Question 17 When Na coz is mixed with KCl, what, if any, solid product is expected to form? Answer saved Points out of 1.00 Select one: 0 a. None Flag question O b. Naci O c. CICO d. Nak e. K coz 2+ Question 18 5.00ml of 0.0175M ca iş mixed with 5.00ml of 0.0165M S04 Calculate Qip and determine if a precipitate will form. The...
Will a precipitate form when 5.00mL of 1x10^-6 M Cd(NO3)2 and 7.00 mL of 2.5x10^-5 M Na2CO3 are mixed together? [ksp(CdCO3) = 2.5x10^-14] What if he above solution was made 1.5 M in NH3 (without changing volumes?) Cd2+ forms a complex ion with NH3 [kf(Cd(NH3)4) = 1.0x10^7]
1. Will a precipitate form if 200.0 mL 0.00020M Ca(NO3)2 is mixed 300.0 mL of 0.00030M Na2CO3? Ksp= 5.0 x 109 2. Will a precipitate form if 25.0 mL of .0020M Pb(NO3)2 is mixed with 25.0 mL of 0.040M NaBr. Ksp = 6.6 x 106 3. Will a precipitate form if equal volumes of 0.00020M Mn(NO3)2 is mixed with 0.00030M Na2PO4? Ksp = 1.0 x 1022
A solution of 0.1 L of 0.3 M Ca(NO3)2 is mixed with 0.2 L of 0.06 M NaF. Calculate the reaction quotient Qsp. Does calcium fluoride precipitate? (Ksp (CaF2) = 3.2×10–11). (A) Qsp = 1.6×10–4; no precipitate. (B) Qsp = 1.6×10–4; a precipitate will form. (C) Qsp = 3.2×10–11; no precipitate. (D) Qsp = 3.2×10–11; a precipitate will form. (E) Qsp = 3.2×10–7; no precipitate.
1. Indicate if the following pairs would form a buffer: a. HBr and KBr: Yes or No b. HCHO and KCHO: Yes or No c. NH CI and NH: Yes or No d. NaOH and NaCl: Yes or No 2. Calculate the pH of a solution that is 0.250 M HCHO, and 0.342 M NaCHO, K = 4.0 x 10 3. Which of the following would be best to prepare a buffer solution with a pH of 1.25? a. HCHỊ0,...
1. What is the definition of an 'equivalence point' in an acid/base titration? (1 point) 2. In part one of the experiment, you will prepare the acid solutions being titrated from a stock solution. Describe how you will accurately prepare 10.00 mL of 0.100 M HCl solution using a 1.00 M HCl stock solution. In your response to this question, be very specific about the quantities of stock solution and deionized water to be used in the dilution and the...
help please? this was the only other information given REPORT SHEET Determination of the Solubility-Product Constant for a Sparingly Soluble Salt EXPERIMENT 8 A. Preparation of a Calibration Curve Initial (Cro121 0.0024 M Absorbance 5 mL Volume of 0.0024 M K Cro Total volume 1. I mL 100 mL 2. 100ML 3. 10 mL 100ml 4. 15 mL 100 ML Molar extinction coefficient for [CrO2) [Cro,2) 2.4x100M 12x1044 2.4810M 3.6810M 0.04) 2037.37 0.85 1.13 2. 3. Average molar extinction coefficient...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) One mole of any substance contains Avogadro's number of particles of that substance. What is the numerical value of Avogadro's number? A) 12.01 23 Avagrans t Male aton 6022 x1o atums B) 6.022 x 1023 C) 6.022 x 10-23 D) 1.661 x10-24 E) 1.00 x10-14 2) What is the mass of 4.00 moles of helium, the gas commonly used to fill...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...