If b= (1.0000x10^0) , c= (5.10x10^-3) , A= (1.080x10^-1) what is the molar absorbtivity 'a'? ( When entering answers in scientific notation 0.00100 would be 1.00e-3 )
If b= (1.0000x10^0) , c= (5.10x10^-3) , A= (1.080x10^-1) what is the molar absorbtivity 'a'? (...
Question 9: If b= (1.000x10^0) , c= (2.10x10^-3) , A= (5.5800x10^-1) what is the molar absorbtivity 'a'? ( When entering answers in scientific notation 0.00100 would be 1.00e-3 ) Question 10: Transmittance is defined as the fraction of the original light that passes through the sample. T=P/Po where Po is the original and P is after passing though the cell. You will measure T on the instruments. A=log10(Po/P)= -log T or 2.00-log(%T) or abs. If %T = 67 % what...
1) The molar solubility of PbI2 is 1.5X10-3 mol/L. PbI2(s) ? Pb2+(aq) + 2I-(aq) What is the molar concentration of iodide ion in a saturated PbI2 solution in mol/L? Hint: Consider mol ratios. Don't use scientific notation. Use 2 significant figures. ________ 2) The molar solubility of PbI2 is 1.5X10-3 mol/L. PbI2(s) ?Pb2+(aq) + 2I-(aq) Determine the solubility constant, ksp, for lead(II) iodide: ksp = [Pb2+][I-]2 Don't use scientific notation. Use 2 significant figures. ________ 3) How is the molar...
When you dilute 0.166L of a 1.62M solution of LiCl to 2L, what is the final molar concentration of the solution? • Answer to 2 decimal places • Read about significant figures and rounding in the Helpful Resources page! • Do not include units when reporting your answer • Use standard notation or scientific notation as accepted by blackboard • e.g. 0.001 or 1-3, not 1 x 10^-3
A chemist starts with 73mL of a 0.3M NaCl solution and dilutes it to 677mL. What is the Molar concentration of NaCl in the new solution? • Answer to 3 decimal places • Read about significant figures and rounding in the Helpful Resources page! • Do not include units when reporting your answer • Use standard notation or scientific notation as accepted by blackboard • e.g. 0.001 or 15-3, not 1 x 10^-3
Calculate the molar concentrations of H+ and OH– in solutions that have the following pOH values. Enter values in scientific notation, for example 0.0010 would be 1.0E-3. a)7.18 b)1.93 c)10.64 d)13.21 e)5.45
Ksp for copper (II) hydroxide, Cu(OH)2, is 2.2x10-20 at 25°C. Calculate the molar (in mol/L) and gram solubility (in g/L) of copper (II) hydroxide. (Report your answers in scientific notation.) Molar solubility = Preview mol/L Gram soubility = Preview
The exothermic reaction: A B+C was carried out adiabatically and the following data recorded: Table 1 0.0 0.1 0.2 0.3 0.4 0.0053 0.0052 0.0050 0.0045 0.0040 -TA mol/(1-s) X0.5 0.6 0.7 0.8 0.85 ·TA 0.0033 0.0025 0.0018 0.00125 0.00100 mol/(l.s) The entering molar flow rate of A was 5 mol/s. What are the PFR and CSTR volumes necessary to achieve 60% conversion?
What is the molar solubility (in mol L-1) of a salt in pure water with general molecular formula MX (where M is a cation and X is an anion) that has Ksp = 1.57 x 10-8 ? You have 5 attempts at this question. Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 104 should be entered as "4.32E4" Answer: Check What is the molar solubility (in mol L-!) of...
The sale M_2X_3 has a Ksp of 0.000087. What is the molar solubility of this salt? Calculate Q_sp for the potential precipitate that will form if 32.8 mL of 0.0023 M calcium chloride solution is mixed with 29.9 mL of 0.0027 M sodium fluoride solution. You will need this answer to answer the next question as well. Enter scientific notation as you would in Excel (1.0 times 10^-3 is 1.0e^-3).
Calculate the molar concentrations of H+ and OH– in solutions that have the following pOH values. Enter values in scientific notation, for example 0.0010 would be 1.0E-3. a) 7.29 [OH-]: [H+]: b) 1.66 [OH-]: [H+]: c) 10.86 [OH-]: [H+]: d) 13.47 [OH-]: [H+]: e) 5.98 [OH-]: [H+]: