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Description b) C3H6O d) H3PO4  e) Mg(OH)2 f) AuCL3 g) Sr(OH)2 h) C2H5OH

Description Explain the formation of the ionic compound composed of each pair of elements 7. Sodium and nitrogen 8. lithium and oxygen 9. strontium and fluorine 10. aluminum and sulfur 11. cesium and phosphorus 

Description A reaction of 20 mL of 2.5M HClO and 1.75M Ca(OH)2 was completed in a calorimeter with a constant of 0.25 kJ/mol. The temperature was observed to increase by 14K. What is the Enthalpy of Reaction for HClO? For Ca(ClO)2?

Description Physical Chemistry question: If 2.0 x 10^23 argon (Ar) atoms strike 4.0 cm^2 of wall per second at a 90 degree angle to the wall when moving with a speed of 45,000 cm/s, what pressure (in atm) do they exert on the wall? The answer to this question is in the back of the book, but I cannot figure out how to get there.

Description If 2442 kJ of energy reaches a square meter (m2) of the United States in one hour, how much total solar energy reaches the entire United States per hour? The entire area of the United States is 9,158,960 km2.

Description Density of gold is 19.31g/cm^3, and density of platinum is 21.43g/cm^3.If equal masses of gold and platinum are transferred to equal volumes of water in separate graduated cylinders, which has greatest volume change.Explain or show sample calculation

Description what is the ionic and net equation for Ba(OH)2(aq) + H3PO4(aq)-->?

Description The solubilty of calcium oxalate (CaC2O4) in urine is 9 x 10^-5 M. Ksp of CaC2O4 is 8.1 x10^-9.  THe solubility of magnesium oxalate (MgC2O4) is 0.0093 M. Ksp of MgC2O4 is 8.65 x 10^-5. If the concentration of Ca is 5 mM, the concentration of oxalate is 4.02 x 10^-5 mM. a) The pH of subject A's urine was 5.9. What fraction of total oxalate, cT, is present as oxalate ion, C2O4, at pH 5.9? The Ka values for oxalic acid in urine are the same as in water. Hint: find the ration C2O4 / cT at pH 5.9. b) If the total oxalate concentration in Subject A's urine was 15.0 mM, should a calcium oxalate precipitate form?

Description Marie Curie was a Polish scientist that specialized in chemistry and physics. She wanted to understand how X-rays worked and noticed in her studies that the element, Uranium, gave off rays that could be measured but did not know what the rays were. She assumed that the rays came from the uranium itself instead of through different molecules interacting with each other. To study the rays, she used an instrument, called an electrometer, that studied the electricity that the rays passed through the air. Through this she was able to discover that the more uranium atoms there were in a compound, the stronger the rays that came off of it. She used this discovery to test other minerals that emitted more rays than Uranium, and discovered the elements Thorium, Polonium and Radium. Through her discoveries of these elements, scientists were able to find the structure of the atom and even how the rays can be used to fight cancer. What was Marie Curie’s observation? Question 2What was Marie Curie's hypothesis? Question 3What was Marie Curie's experiment to prove her hypothesis? Question 4 What was the law Marie Curie discovered through her experiment? Question 5What theories were formed from the law of Marie Curie's experiments? Question 6Lina has worked hard to gather data for her experiments. With her last set of data she received, she is ready to publish her paper in a peer-reviewed journal. In order to do that, she has to make sure that all of her data has consistent SI units, significant figures and in scientific notation if necessary. Help Jessica get all of her data in order. How many significant figures are in 43.8lbs? Question 71 PointAdd 43.8lbs and 56.8923lbs. What is the answer in the correct significant figures? Question 81 PointConvert the answer from #7 to kg. Use the correct significant figures. Question 91 PointConvert the answer from #8 in kg to g. Use the correct significant figures. Question 101 PointWrite the answer from #9 in scientific notation. Use the correct significant figures. Question 11How many significant figures are in 643.78 quarts? Question 12Multiply 643.78 quarts by 4.3562. What is the answer in the correct significant figures? Question 131 PointConvert the answer in #12 to mL. Use the correct significant figures. Question 14Write the answer from #13 in scientific notation. Use the correct significant figures. Question 15Find the correct mass and the volume calculated from #10 to #13 to calculate the density. Density = (4.7033 x 104 g/ 2.6540 x 106 mL) = Question 161 PointThe American Heart Association recommends to eat no more than 2,301mg of sodium per day. Convert the mass of sodium to ounces, if 1 oz = 28.3459g. Use correct significant figures. 2301mg x (0.001g / 1 mg) x (1 oz/ 28.3459g) = Question 171 PointWhat is the difference between a heterogenous and a homogenous mixture? Question 181 PointDescribe the difference between a solid, liquid or a gas in terms of the molecules in a container, within each state of matter. Question 19Give an example of a chemical change that occurs in your life, regularly. Question 20With the rest of her data, Lina needs to make sure her numbers are in scientific notation so that they are consistent to each other and easy to understand. For the following, write each answer in scientific notation with the correct significant figures. 4.0 x 65.89 kg / 5 = Question 211 PointKamal is a nurse that works in the ER. He knows the first thing he has to do is take the body temperature of each patient. He has learned from his studies that the normal body temperature is 37?C. If the body temperature is higher than 37?C, the patient has a fever, and if the body temperature is below 37?C, the patient has hypothermia. Help Kamal figure out if his patient is okay. Patient #2: Kamal read a body temperature of 312.15?K. Convert K to C and write whether the patient is normal, has a fever or has hypothermia. Use correct significant figures. Question 221 PointLina is working through her homework assignment and is having trouble with working through some density equations. Help Lina with her homework. Use correct significant figures and make sure the units are correct. What is the density of a piece of ice if it has a mass of 4.32g and a 3.5 cm on 3 sides? Question 231 PointLina is working through her homework assignment and is having trouble with working through some density equations. Help Lina with her homework. Use correct significant figures and make sure the units are correct. What is the mass of mercury if it has a volume of 9.12 cm3 and a density of 13.593 g/mL? Question 241 PointDr. Henrietta Owusu was invited to give a presentation of her work at a medical conference. Her presentation encompassed explaining various properties of matter. At the presentation, she received a question to give examples to identify various intensive and extensive properties of matter. Help her identify the following properties below as intensive or extensive. Heat. Neither Intensive Extensive Both Question 251 PointDr. Henrietta Owusu was invited to give a presentation of her work at a medical conference. Her presentation encompassed explaining various properties of matter. At the presentation, she received a question to give examples to identify various intensive and extensive properties of matter. Help her identify the following properties below as intensive or extensive. Temperature. Neither Intensive Extensive Both Question 261 PointAbayomi has several beakers of different mixtures and needs to figure out how to identify each of them. Help him identify if the mixtures in each beaker is heterogenous or homogenous: Beaker #5 has cereal with milk. Neither Homogenous Heterogenous Both Question 271 PointAbayomi has several beakers of different mixtures and needs to figure out how to identify each of them. Help him identify if the mixtures in each beaker is heterogenous or homogenous: Beaker #3 has pomegranate juice with seeds. Neither Homogenous Heterogenous Both Question 281 PointDr. Henrietta Owusu received a second question asking if she could provide examples differentiating the physical and chemical properties of matter. Help her identify if the following changes are a chemical change or a physical change. Ice melting. Neither Physical change Chemical change Both Question 291 PointDr. Henrietta Owusu received a second question asking if she could provide examples differentiating the physical and chemical properties of matter. Help her identify if the following changes are a chemical change or a physical change. Mixing chocolate syrup with milk. Neither Physical change Chemical change Both Question 301 PointOberon took up archery recently and is trying his hardest to be both precise and accurate with his shots. In his latest practice round, he shot at 4 different targets. Identify if his shots in the target are accurate, precise, both accurate and precise, or neither.image00260bf8b30.jpg  Both accurate and precise Precise, but not accurate. Accurate, but not precise. Neither accurate nor precise.

Description Formal Lab reports should be typed double-spaced with 12 pt. font and 1 inch margins. The report should include the following format: Abstract – brief summary of the entire experiment - Give an overview of what you will be doing in the lab and the goal of the experiment Introduction & Background Section – state the objective of the experiment and discuss any relevant theory pertaining to the particular lab being -What should be included:     - Background on lability/stability of inorganic complexes.            - Differences between Co(II) and Co(III) in terms of d-atomic orbital electron distribution     - Give the structures of the three compounds you will be synthesizing     - Give all the reactions you performed in the three weeks     -What information do we learn about a complex from U.V-Vis absorption and FT-IR? How are they different?     -What are the effects of adding different ligands to Co? Talk about the spectrochemical series and their influence on d-orbital splitting     - Explain the common ion effect and how it pertains to this lab Experimental – an explanation of all procedures performed and materials needed to replicate the Must be in paragraph format; no lists. -Include the synthesis from Part A, B, and C. Please be in your own words -Don’t include the methods for obtaining the absorption spectrum, FT-IR, or conductivity. -Do not include personal pronouns (he, she, they, we, etc. ) Observations & Results – clear state all observations taken during the experiment and tabulate results completely showing all calculations for percent yield and related calculations (use proper significant figures and units in calculations). -Include four figures and 1 table – (create your own tables – do not share tables)      1.) Absorption spectrum of [Co(NH3)4CO3] NO3      2.) Absorption spectrum of [Co(NH3)5Cl] Cl2      3.) Absorption spectrum of Co(NH3)5(H2O)      4.) FT-IR spectrum of Co(NH3)4CO3 and Co(NH3)5Cl – Properly labeled will vibrational modes      5.) Table with the conductivity values of the three complexes Discussion – Paragraph form/Numbered – Do not copy the post lab questions into the report. Just answer the questions. – Post Lab Questions - Including Yield Calculations for Part A and B Couple comments about the following post lab questions -Part C Q1: Omit this question – It’s in the results section -Part C Q2: Resistivity is 1/Conductivity        - Don’t calculate cell constant, specific conductivity, and molar conductivity - Part C Q3: Omit this question - Part C Q4: Answer this question - Part C Q5: Answer this question - Part C Q6: You can answer this – Assume the concentration is 1 mM - Part C Q7: Answer this question but describe the differences in the absorption maxima. What is accounting for those differences? - Part C Q8: Answer this question - Part C Q9: Answer this question - Part D Q1: Put a table with the assigned vibrational mode and the associated wavenumber - Part D Q2: Answer this question – try your best - Part D Q3: Omit this question because you should’ve assigned your spectrum in the results section. - Part D Q4: Good question. Do you think there are any NO3 vibrational modes? If so, where should they be? And what would happen if the NO3 was coordinated to the Co? - Part D Q5: This is a good question. How do you know you coordinated the CO3? How would the spectrum look with only CO3? - Part D Q6: Create a table for the Co(NH3)5Cl complex - Part D Q7: What bands do you think are absent? - Part D Q8: Answer this question - Part D Q9: Answer this question Include the percent yields after the post lab questions so: - Part A Q6 - Part B Q5 Conclusions – summarize the purpose of the experiment and state with reasoning the experiment was successful or not and how it could potentially be - What issues did you have? How could you fix them? What would you like to do next in terms of inorganic synthesis?