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(2).Identify the primary secondary and tertiary carbon atom present
(a) 2-methyl-2-cyclohen-1-ol
(b) 4-diisopropyloctane
(c) 2-methyl-4-penten-1-ol
(d) 4-chloro-2-ethyl-1-methyl cyclohexane
Select the reactants and describe the experimental conditions needed of 2-methyl-2-hydroxypentane from an alkene
Body fat has a density of 0.909 g/mL, you are given a 72.8 mL sample of fat. What is the mass of the fat in g?
1: A hydrocarbon contains 7.7% by mass of carbon. The relative mass of the compound is 78. Derive the empirical formula of the compound, it's molecular formula, name the hydrogcarbons and write the structural formula [H=1,C=12]
2: A is a dilute tetraoxpsulphate VI acid, B contains 8g/dm³ of sodium hydroxide of solution. 25cm³ of B requires 20cm³ of A for complete neutralization. Calculate the concentration of B and A in mol/dm³, and, the number of hydrogen ions in 1.0dm³od solution A.
Hello, I have a question, what is the maximum time that 20 sprays of alcoholic perfume (I don't mean normal alcohol, i mean alcohol with adding the strongest fixatives to it to slower the rate of the alcohol evaporation) will evaporate completely ( i mean by completely evaporated like the alcohol taste, color, and odor, is completely gone, also if you poured water on the cloth or head hair or armpit it wouldn’t appear) from your cloth (cotton, fabric, nylon) or head hair or arm pit after spraying it 20 times in -30 degrees Celsius and in 10 degrees celsius weather, thanks.
Generalize the solubility of carbohydrates in water and in ethanol
Rewrite the atomic cores placing an electron pair between each flourine and sulfur core
Write the Lewis structure of SF2 in the box,distributing the remaining valence electrons so that all three atoms are in accordance with the octet rule
a) Sea water contains roughly 28.0 g of NaCl per liter. (NaCl molar mass = 58.44 gmol-1).
i. Calculate the number of moles of NaCl in a liter of sea water.
ii. Calculate the molarity of NaCl in sea water.
iii. Calculate the mass by volume percent (W/V) of NaCl in sea water.
b) To identify the cations and anions present in an unknown solution, the following tests were carried out.
I. A flame test on the solid substance produces a brick red colour.
II. Nitric acid was added to a solution of the substance followed by a few drops
of barium nitrate solution. A white precipitate was formed.
i. What is the cation present in the substance?
ii. What is the anion present in the substance?
iii. Give the formula of the substance present.
#339914 on Dec 2023