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An experiment requires 42.0 g of ethylene glycol, a liquid whose density is 1.114 g/mL. Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder. What volume of the liquid should he use?
Conjugate Pairs of Acids and Bases, What is the base if the acid is H2PO4- and the equation of the pair?
Lipids (fats) are esters of long chain fatty acids and glycerol. Similarly, describe the general structures of proteins and carbohydrates.
Determine the boiling point of an aqueous solution that is 2.30 m ethylene glycol (C2H6O2); Kb for water is 0.52 degrees celsius/m.
what is the molar mass of gas if 0.250 g of the gas occupies 215 mL at 61 8mmHg and 30. 0C
Determine the mass of copper(II) sulfate, CuSO4 will remain after removing all the H2O(water) from 74 grams of CuSO4 5H2O (Also called Blue Vitriol and Bluestone)?
How much heat is required to warm 227 g of ice from -45.5°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C.
A 31.0-g sample of water at 290. K is mixed with 48.0 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
A 29.0-g sample of ice at -11.0°C is mixed with 113.0 g of water at 71.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
determine volume it would have if it reaches an altitude where the temperature = -33 0C , pressure = 0.65 atm?
calculate the osmotic pressure in mm Hg of 6.00 L of an aqueous 0.889 m solution at 30.°c, if the solute concerned is totally ionized into three ions
If 4.00 g of the unknown compound contained 0.133 mol of C and 0.267 mol of H, how many moles of oxygen, O, were in the sample?
Write a balanced nuclear equation for the alpha decay of each of the following radioactive isotopes.
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