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The similar quantity of energy is added to 10.00 g pieces of gold, magnesium and platinum all initially at 25oC. The molar heat ability of these three metals are 25.41 J/(mol•oC), 24.79 J/(mol•oC), and 25.95 J/(mol•oC), correspondingly. Explain which piece of metal has the highest final temperature?
a bottle containing 315 g of cleaning solution is used for carpets. if the cleaning solution has a specific gravity of
What is the pH of a buffer solution of phenol and its conjugate base. [C6H5OH] = 0.11 M and [C6H5O]- = 0.80 M.
A sample of nitrogen gas at 298 k And 745 torr has a volume of 37.42 L. what volume will it occupy if the pressure is increaaed to 119kpA at 345 K
a tightly sealed 5 litres flask has argon ar at 6.28x101 deg. c and 781 mm hg. determine the temperature of the gas if
a student reported the following for his unknown mixture 25 nh4cl 30 nacl and 50 sio2. assuming that the calculations
diethyl either is 34.5C and its latent heat of vaporization is 6.38 kcal/mol. Calculate its vapor pressure
a beam of microwaves corresponds to a flux of 1.1x100 x 1020 photons per second with a wavelength of 2.0 cm. calculate
Make a graph that depicts change in pH versus the amount of acid that you added to tris solution. how would you label axes and legend
Assuming a soap to be pure sodium stearate, give an equation for it's reaction with Ca2+ in hard water.
Explain what a hydrogen bond is and describe, on the molecular level, how a water and an alcohol molecule can hydrogen bond
A compound contains: 23.71% O, 23.76% S, 52.47% Cl. If it takes 46 seconds for this compound to effuse through the same plug through which the same amount of Argon, Ar, passed in 25 seconds. What is the molecular formula of the compound
A 2.45-g sample of strontium completely reacts with oxygen to form 2.89 g of strontium oxide. Use this data to calculate the mass percent composition of strontium in strontium oxide.
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