What volume of liquid should use using graduated cylinder
An experiment requires 40.0 of ethylene glycol, a liquid whose density is 1.114 . 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?
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What is the specific heat of a metal if the temperature of a 12.5-g sample increases from 19.5 degrees C to 33.6 degrees C when it absorbs 37.7 J of heat?
Calculate the molarity of acetic acid in a viegar sample, knowing that 5.00 mL of vinegar requires 43.50 mL of 0.105 M NaOH to jut reach the phenolphthalein endpoint in a titration.
Suppose you have 10 ml of 0.10m sucrose solution. you add 90 ml of water to the solution. Do the number of sucrose change? Does the molarity change?
What mass of NaCl must be dissolved in 65.0 grams of water to lower the freezing point by 7.50 °C? The freezing point depression constant, Kfp, for water is -1.86 °C/m. Assume the van't Hoff factor for NaCl is 1.87.
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?
A tank with a total pressure of 4.7 atm has a mixture of gases that is 72% nitrogen, and the rest is oxygen. What is the partial pressure of the nitrogen? The oxygen?
By how much would the pH change, and in which direction, if we added to this solution enough base to neutralize 10% of the total acid?
Calculate the value of deta S when 1.20 mol CH3OH (l) of is vaporized at 64.7 C. The normal boiling point of methanol is 64.7 C, and its molar enthalpy of vaporization is delta H = 71.8 KJ/mol.
How efficient is the extraction of the tea leaves containing 1.0 g of caffeine with the two 3 mL portions of chloroform over that of a single-step reaction?
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