Description 1) Consider the data for the following metal complexes. Determine d electron count, and calculate the CFSE for each metal complex, including pairing energy. Based on your results, assign each complex to being either high spin or low spin, and explain briefly your reasoning. Complex (?o, cm-1) (Pairing E, cm-1) [Fe(OH2)6]2+ 10,400 17,600 [Fe(CN)6]4- 32,850 17,600 [CoF6]3- 13,000 21,000 [Co(NH3)6]3+ 23,000 21,000
Description On one graph, plot crystal field stabilization energy (CFSE) vs. #d electrons (0-10) for octahedral (high spin and low spin) and tetrahedral complexes. Using words, how does CFSE change as you move down a family? Based on the CFSE values you calculated, identify d electron counts that should be particularly kinetically labile and inert.
Description 1 you place a balloon in a closed chamber at standard temperature and pressure(STP) you triple the chamber pressure. What happenss to the balloon? The volume decreases to one third of its orginal volume the temperature must also change for the volume to change the volume increases to three times its orginal voume the volume stays the same 2 which gas law has the assumption of a fixed amount and a fixed temperature of a gas? Boyles Law Gay- Lussac's Law Charles's Law Avogado's Law 3 you place a balloon in a closed chamber at standard temperature and pressure (STP) you cool the chamber to half of its orginal temperature while leaving the pressure constant. What happens to the balloon? it decreases to one half of its orginal volume It expands to 4 times its orginal volume it stays the same volume it doubles in volume 4 you place air in a sealed can at standard temperature and pressure (STP) you triple its absolute temperature (K) while leaving the volume constant. What happens to the pressure? it triples it decreases to one third of the orginal pressure it decreases by one half it stays the same 5 which of the following is the mathematical representation of boyle law? P1l T1=P2l T2 P1V1=P2V2 V1l T1=V2 l T2 P1V1=V2l T2 6 at room temperature which of the following is the MOST compressible? one liter of oxygen, a gas one liter of iron, a solid one liter of mercury, a liquid one liter of water, a liquid 7 you can open a can of soda at room temperature and hear a hiss. which of the following factors has changed inside the container? amount of gas atmospheric pressure temperature of gas type of gas 8 which of the following is the mathematical representation of Gay-Lussac's Law? P1V1=V2lT2 V1lT1=V2lT2 P1lT1=P2lT2 P1V1=P2V2 9 a student reduces the temperature of a 300cm^3 balloon from 60C to 20 C what will the new volume of the balloon be? (remember to be careful with the units) 264cm^3 341cm^3 300cm^3 100cm^3 10 karen measures the volume of a gas at 200 K and 100 kPa to correct her measurement to standard temperature and pressure (STP) what must she do? make a volume correction based on a lower temperature of 73K make a volume correction based on a lower pressure 50kPa make a volume correction based on a higher temperature of 273K make a volume correction based on a higher pressure of 202kPa
Description Number Significant figures Explanation 23.56 4 All nonzero digits are significant. 500.01 5 Zeros between nonzero digits are significant. 23.560 5 Trailing zeros are significant when a decimal point is shown. 0.0078 2 Leading zeros are not significant. 1000 ? Trailing zeros at the end of a number but before a decimal are ambiguous. Round the value 44.981 g to three significant figures. Express your answer numerically using three significant figures.
Description Given: A 10.00-g sample of gaseous ethane (C2H6) reacts with chlorine to form gaseous hydrogen chloride and a liquid compound (Y) that has a molar mass of 168 g/mol. Compound Y is 14.3% carbon, 84.5% chlorine, and the remainder hydrogen. The reaction produces 15.9 g of compound Y, which is 57.0% yield. I got this but it was wrong: C2H6(g)+4Cl2=4HCl(g)+2CHCl2(l)
Description What is the emperical formula of stannous fluoride, the first compound added to toothpaste to protect teeth against decay? Its mass percent composition is 24.25%F,75.75%Sn. express answer as chemical formula_________
Description Part A- The forensic technician at a crime scene has just prepared luminol stock solution by adding 16.0g of luminol into a total volume of 75.0 mL of H2O. What is the molarity of the stock solution of luminol? Molarity of luminol solution__________________ Part B-Before investigating the scene the technician must dilute the luminol solution to a concentration of 6.00 x 10-2 M. The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of luminol are present in 2.00 L of the diluted spray?
