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Problem- A substance is found to contain 73.14% C, 7.37% H and 19.49% O by mass. What is its empirical formula
A) C5H6O
B) C3H8O
C) C4H8O
D) C6H12O
Using textbook reference solve the reactions given in above problem
ethylene glycol hoch2ch2oh is effective as an antifreeze but it also raises the boiling temperature of automobile
the acetylsalicylic acid into sodium acetylsalicylate but not give excess of sodium hydroxide in your solution? sodium hydroxide has a molecular weight of 40.00grams/mole
The entire subsequent are balanced equations. Define the number of atoms of each element in the reactants and in the products. Explain
A 26.0-g sample of ice at -10.0°C is mixed with 114.0 g of water at 72.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
Explain what are the chemical differences between an equivalence point as well as an endpoint in titration and utilize this to explain weather phenolphthalien could be utilized as an indicatior in any acid/base neutralization.
Determine the mass of the liquids in grams if this liquid is added to the beaker the combined mass becomes 238.254 grams? Given that the mass of beaker=225.08 g?
calculate the Al(III) concentration in the original unknown solution by correcting the dilution made when preparing the sample for analysis.Given: 10 mL unknown solution
A 269 mg sample of rock was found to have 2.45 × 10-6 mol of potassium-40 (t1/2 = 1.3 × 109 yr) and 2.45 × 10-6 mol of argon-40. How old was the rock? What assumption is made about the origin of the argon-40?. Enter your answer in scientific notat..
a calorimeter has water of 22.0 grams at the temperature of fifteen degree celsisu . when 1.40 grams of a substance
the data below were collected for the following reactioninitial rate0.050 0.050 0.0140.100 0.050 0.0290.100 0.100
at 760k 85 of a sample of cyclopropane changes to propane in 79.0min. calculate the value of the rate constant for this
if you were to prepare a 1.00 solution of beginning with water at 27.5 what would the final temperature of the solution
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