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An empty beaker weighs 25.39g. When completely filled with water, the beaker and its contents weigh 297.65 g. Use d=100 g/mL as the density of water. What volume does the beaker hold?
A solution is prepared by dissolving 179 g sucrose (C12H22O11) in enough water to produce 1.15 L solution. What is the molarity of this solution?
The mass of a cube of gold with one side measuring 150. cm is ______ kg. The density of gold is 19.32 g/cm3
Consider the following reaction: 2 HI(g) -> H2(g) + I2(g) If 3.55 moles of HI(g), 0.550 moles of H2, and 0.630 moles of I2 are at equilibrium in a 1.00 L container at 915 K
Your friend decides to decrease cooking time for spaghetti noodles by adding table salt to 2.0 L water. How much table salt (NaCl) must be added to the water in order to raise the boiling point by 4.0?C? (Kf = 1.86?C/m, Kb = 0.512?C/m)
An industrial chemist studying bleaching and sterilizing prepares a hypochlorite buffer using 0.150 M HClO and 0.150 M NaClO. (Ka for HClO = 2.9x10^-8.)
A solution is prepared by mixing 52.0 g glucose (C6H12O6) with 510.0 g water. What is the vapor pressure of this solution at 25°C
What is the best and easy way to determine the frequency (in hz) of the interacting photon. A photon interacts with a ground state electron in a hydrogen atom and is absorbed.
which effect on atomic size is more significant, the nuclear charge (p+) or the energy level that the eleectrons are filling explain why.
A 0.221 g pellet of potassium hydroxide,KOH, is added to 52.2 g water in a Styrofoam coffee cup. The water temperature rises from 23.5 to 24.4 °C.
The vapor pressure of a solution containing 53.6 g glycerin (C3H8O3) in 133.7 g ethanol (C2H5OH) is 113 torr at 400C. Calculate the vapor pressure of pure ethanol at 400C
Suppose that 347 mL of argon is collected over water at 25 ?C and 715 torr. Compute the volume of the dry argon at STP. The water partial pressure at 25 ?C is 23.8 torr.Answer in units of mL
Acetic acid flowing at the rate of 20kg pe min. Product p is of combination leaves at rate of 100 kg per minute. Determine the composition of p?
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