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what is the density of the block? Hint 1. How to approach the problem The apparent mass of the object in the fluid, 5.6 , is equal to its mass in air, 50.0 , minus the mass of the displaced fluid: First, determine the mass of displaced water. Second, find the volume of displaced water based on its the mass and density. The volume of displaced water is equal to the total volume of the block. Finally, use the mass of the block and the volume of the block to calculate the density. Hint 2. Calculate the mass of the displaced water The mass of the displaced fluid is equal to the mass of the object in air, 50.0 , minus the apparent mass of the object in the fluid, 5.6 : What is the mass of the displaced water?[note block is only 40% imersed in water Express your answer with the appropriate units.
A 3 g sample of C8H16O is burned completely in excess oxygen to yield CO2(g) and H2O(l) at 25 C, releasing 117.83 kJ of energy. What is the enthalpy of formation of C8H16O?
A solution is made by adding 70.00grams of sodium acetate to 550.0mL of 0.60 mol/L solution of acetic acid. a.What is the pH of the
write separate oxidation and reduction half-reaction for the procedure used in the test for nitrate ions.
the total pressure of the system is found to be 4.50 atm At 700 degrees celsius. compute the equilibrium partial pressures of carbon dioxide and carbon monoxide if the equilbrium constant Kp = 1.52,
Propane is often used for gas grills and is typically purchased by filling a propane tank with 20 pounds of propane. What is the enthalpy change when 18 pound of propane is burned?
In which of the following reactions does an instantaneous increase in the volume of the reaction vessel favor formation of the products
If the diameter of a sodium atom is 3.14×10-8 cm, how many sodium atoms would fit along a line exactly 6.00 inch long?
Explain the difference between exposure to radioactivity from a source external to the body versus a source that has been consumed and is therefore inside the body.
A mixture of gases contains 0.290 mol CH4, 0.240 mol C2H6, and 0.300 mol C3H8. The total pressure is 1.40 atm. Calculate the partial pressure of the gases.
An aqueous solution is 22.0% by mass silver nitrate, AgNO3, and has a density of 1.22 g/mL. What is the molarity of silver nitrate in the solution?
A 2 cm string is fastened at both sides is plucked. What is the wavelength of the n = 4 standing wave? How many nodes does it contain?
carbon aldoses are there in the L-series? Enter just the numerical value, expressed as a whole number.
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