Caleb Adams
Purchase College, State University of New York
Chemistry
Chemistry teacher | Experienced educator in USA
As a Chemistry enthusiast with a degree from Purchase College, State University of New York, my passion lies in unraveling the mysteries of the molecular world. I bring a wealth of knowledge and practical experience to every tutoring session. Whether it's demystifying chemical reactions or clarifying complex concepts, I'm dedicated to fostering a deep understanding of Chemistry. Let's embark on a journey of scientific discovery together – where questions are welcomed, and understanding is the destination.
Questions
- A sample of nitrogen has a volume of 880 mL and a pressure of 740 torr. What pressure will change the volume to 550 mL at the same temperature?
- What is the enthalpy of formation of carbon monoxide in KJ/mol ? C(s) + O2(g) --> CO2(g) ΔH° = -393 kJ 2CO(g) + O2(g) --> 2CO(g) ΔH° = -588 kJ
- Which of the following can exist as a molecular element?
- How is lithium metal oxidized by water? What is the reduction product?
- Why is it easy to work with normality than molarity? Can someone explain this question to me, preferably with an example?
- What are the products and their masses when #"0.105 mol AgNO"_3("aq")"# reacts with excess #"LiOH(aq)"#?
- What is the Pauli Exclusion Principle?
- In the U.S., the emissions limit for carbon monoxide in motorcycle engine exhaust is 12.0 g CO per km driven. What is this limit expressed in milligrams per mile (mg/mi)?
- What mass of #"NO"# can be produced when #"6.64 g NH"_3# reacts with excess #"O"_2"#? What is the percent yield if the actual yield was #"9.89 g NO"#?
- A #"450. kg"# object has a density of #"1.23 g/cm"^3"#. What is its volume in #"m"^3"#?
- How do I prepare a #"3 M"# #"NaOH"# aqueous solution?
- Explain.(i)Pentane is distilled off first when a liquid mixture containing pentane,heptane and nonane is heated.(ii)Hexane floats on water. (iii) cyclopentane may be easily separated from an aqueous salt solution?
- How do graphite, and diamond differ in their physical properties?
- Why are the gas chromatograms of fresh petrol and partially evaporated pertol differnt?
- What is the #%(v/v)# of a #"1050 mL"# solution containing #"93.3 mL"# acetone?
- How would you balance the following equation: HCI + NaOH --> H20 + NaCI?
- What mass (in g) of NaCl is needed to prepare 1.5 L of a 3.0 M salt water solution?
- How do you measure specific heat?
- When Bromine and Aluminum react, what chemical formula would you expect to find? How do you write the formula?
- How can you separate a mixture of shampoo and sand?