aquamarinecamel199Lv1in ChemistryΒ·18 Feb 2021Find the length of 1 side of a cubic box if its volume is 40 gal.
OC userin ChemistryΒ·7 May 201821. What are three different methods to calculate AGβ for a reac- tion? Which method would you choose to calculate AGΒΊ for a reaction at a temperature other than 25 Β°C?
raspberryhamster63Lv1in ChemistryΒ·18 Feb 2021A 0.1046 g diprotic organic acid required 23.47 mL of 0.1072 M standard KOH to reach the first end point. What is the molecular weight of the acid.
OC userin ChemistryΒ·5 May 201824. Which structure can exhibit optical isomerism? HH Π½ Π½ CI a) H-CβCβC b) H-C-C-C-H HH Π‘ΡΠ½ ΠΉ Br Br c) H-
OC userin ChemistryΒ·5 May 201884. Draw the structure for each ether. a. ethyl propyl ether b. dibutyl ether c. methyl hexyl ether d. dipentyl ether
azureimpala234Lv1in ChemistryΒ·10 Feb 2021Which of the following statements about polar molecules is false?A) A molecule with polar bonds can be nonpolar.B) A molecule with polar bonds can be polar.C) A molecule with only nonpolar bonds can be polar.D) A molecule with 120ΓΒ° bond angles can be polar.E) A molecule with 180ΓΒ° bond angles can be polar.
OC userin ChemistryΒ·3 May 201822. What are the anode and cathode reactions in a common dry-cell battery? In an alkaline battery?
OC userin ChemistryΒ·4 May 201882. Determine the products of each carboxylic acid reaction. a. CH3 -CH2-0-OH + NaOH - > b. CH3-CH2-CH2-C-OH + CH3-CH, -CH2-OH H,804
OC userin ChemistryΒ·5 May 201859. Predict the charge of the ion formed by each element. a. O b. K C. Ald . Rb
OC userin ChemistryΒ·2 May 201871. An electron in the n = 7 level of the hydrogen atom relaxes to a lower-energy level, emitting light of 397 nm. What is the value of n for the level to which the electron relaxed?
OC userin ChemistryΒ·3 May 2018Q15. A wooden block has a volume of 18.5 inβ. Express the volume of the cube in cm. a) 303 cm b) 47.0 cm c) 1.13 cm d) 7.28 cm
OC userin ChemistryΒ·4 May 201827. Classify each element as atomic or molecular. a. neon b. fluorine c. potassium d. nitrogen
OC userin ChemistryΒ·4 May 2018Determine the oxidation number of each atom/ion in Zn(ClO3)2ZnClOPlease explain to me which rule you used to determine the correctoxidation number. I keep trying and I keep getting it wrong!
OC userin ChemistryΒ·4 May 20182. What is a buffer? How does a buffer work? How does it neutralize added acid? Added base?
OC userin ChemistryΒ·1 May 201817. Describe fission. Include the concepts of chain reaction and crit- ical mass in your description. How and by whom was fission dis- covered? Explain how fission can be used to generate electricity.