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Determine the concentration of a solition prepared by diluting 25mL of a stock 0.188M Ca(NO3)2 solution to 150mL
The speed of sound in air is 344 m/s at room temperature. The lowest frequency of a large organ pipe is 30 s-1 and the highest frequency of a piccolo is 1.5 x 104 s-1. Find the difference in wavelength between these two sounds.
If the tempurature of the combined solution rises to 27.8 degree C what is the DeltaHrxn (delta heat reaction) (in kJ/mole) for this process?
To obtain the same antifreeze protection requires 76 g of propylene glycol to replace each 62 g of ethylene glycol. Calculate the mass of propylene glycol required to replace 9.00 gal of ethylene glycol.
A balloon has a volume of 10,500 liters, and the temperature is 15C. If the temperature were -25C, what would the volume of the balloon be.
A bottle containing 315 g of cleaning solution is used for carpets. If the cleaning solution has a specific gravity of 0.850, what volume of solution was used?
start with 4-cyclopentylphenol and react with NaOH, CH3I, NBS, heat show each step to get the final product.
Why shouldn't you use a spatula to scrape your crystals offthe filter paper
Acetone (nail polish remover) has a density of 0.7857 g/cm^3. a. What is the mass, in g, of 28.56 mL of acetone? b. What is the volume, in mL, of 6.54 g of acetone?
calorimeter in which the temprature of the bomb and water increase from 19.5 to 22.83 C? the bomb has a heat capicity of 650 J/K; the caloriemeter contains 320g of water.
What is the molar concentration of methanol in the mixture? Give answer in M, 2 significant digits, do not write down the units.
Hemoglobin is the protein that transports O2through the blood from the lungs to the rest of the body. In doing so, each molecule of hemoglobin combines with four molecules
a. exchanges energy when a phosphate bond is hydrolyzed b. the high energy form of coenzyme A c. the oxidized form of nicotinamide adenine dinucleotide.
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