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We will let circles, blocks, and triangles represent atoms.
Depict two boxes.
One encloses a mixture of helium and oxygen.
Depict a chemical system at equilibrium when ammonia gas has partially decomposed into hydrogen and nitrogen gas.
After the vessel was pressurized with hydrogen gas and heated to 80 degrees C, the monometer showed the initial pressure inside the "bomb" to be 77.2 atm. Assuming 100% yield, calculate the pressure that should be inside the "bomb" when the reacti..
When 6.50 g of the solid is dissolved in 50.0 g of water, the freezing point of the solution is lowered by 5.23 degrees celsius. What is the composition by mass of the solid?
Identify which of the following solutions may act as buffers by placing a check in the box next to the mixture. A. HNO3 , NaNO3 D. H2SO4, NaHSO4
A mass of 1.50 g H2O is sealed in an evacuated 3.0-L flask and heated to 55 °C. What mass of liquid water remains in the flask when equilibrium is established? The equilibrium vapor pressure of water at 55 °C is 118 mm Hg.
water with a mass of 0.500 rm kg at 15.0circ rm c is mixed with 0.800 rm kg of water at 35.0circ rm c. what is the
Calculate [Cr^3+] in eequilibrium with Cr(OH)4- when 0.010 mol of Cr(NO3)3 is dissolved in a liter of solution buffered at pH 10.0
calculate the pH of the solution that results from adding 8.50ml of 0.100M NaOH to 50.00 mL of a 0.0500M solution of acetic acid.
When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 24.0 of carbon were burned in the presence of 75.4 of oxygen, 11.4 of oxygen remained unreacted. What mass of carbon dioxide was produced
An alloy is made of Copper (Cu) and tin (Sn). The density of the alloy is found to be 8.76g/cm3. The reported densities of copper and tin are as follows: Cu = 8.96g/cm3 Sn = 7.30g/cm3. Find the % of copper and zinc in the alloy.
If LiF dissolved in water what two ions would form. What part of the water molecule would be attracted to each of the ions listed above and why
One day she makes a decision to go to her primary healthcare provider for a routine checkup. The healthcare provider suggests that she take the Benedict's test. Presume that the glucose levels of the patient are high.
If a solution has a pH of 2.36 and you do a 20-fold dilution of it with ultrapure reagent-grade water, what will its pH be after you dilute it
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