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You tested Lysol cleaner in the lab with the FeCl3 reagent. A definite color change was observed. What conclusion can you make about the Lysol?
the molar heat of combustion of methanol, CH3OH, is -757kJ/mol. If 2g of methanol is placed in bomb calorimeter with heat capacity of 6.5 kJ/c, what is the temperature rise when the sample is combusted?
Bones vary in mechanical properties. Where on the range of mechanical properties for bone do you think this bone would fall? Address at least elastic modulus, yield stress, and yield or ultimate strain.
calculate the number of protons in a sample of pure water with a volume of 1 mL. Then, calculate the fraction of water that is ionized.
consider the following reaction. Mg+H3PO4 magnesium phosphate and hydrogen. what is the molecular formula for magnesium phosphate.
A piece of metal of mass 27 g at 105?C is placed in a calorimeter containing 49.2 g of water at 19?C. The ?nal temperature of the mixture is 30?C. What is the speci?c heat capacity of the metal.
The reaction of boron with carbon monoxide produces compounds with these skeletal structures: B--B--C--O and O--C--B--B--C--O. For each of these compounds, draw the lewis structure that minimizes formal charges.For each compound select the atoms t..
for a hydrohalogenatoin reaction if you use br is it calles hydrobromination? or if you use cl is it hydrochlorination?
In a teaspoon (5.0ml ) of a common liquid antacid, there are 150mg Ca(OH)2 and 150mg Al(OH)3 . A 8.3×10-2 M HCL , which is similar to stomach acid, is used to neutralize 5.0 ml of the liquid antacid.
A toothpaste contains 0.24% by mass of sodium fluoride used to prevent caries (cavities) and 0.30% by mass of triclosan (C12H7Cl3O2). A PRESERVATIVE + ANTIGINVITIS AGENT.
What is the pH of a 0.25 M NaOH solution? A Rolaids tablet contains calcium carbonate, which neutralizes stomach acid. If 44.55 mL of 0.488 M hydrochloric acid is required to neutralize one tablet, how many milligrams of calcium carbonate are in a ..
If a 1.22 g piece of gold is hammered into a sheet whose area is 32.4 ft2, what is the average thickness of the sheet? (The density of gold is 19.32 g cm-3.)
Calculate the osmotic pressure of a 20% sucrose solution given that the molecular weight of sucrose is 342g.
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