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Chemistry Problem
You have a mixture of 3 gasses with a total pressure of 750 mmHg. If gas A is 125 mmHg and gas B is 343 mmHg, what is the partial pressure of gas C?
the specific heat of H2O(s) is 2.09 J/g ?C, of H2O (l) is 4.184 J/g ?C, and of H2O (g) is 1.84 J/g ? C. The heat of fusion of water is 334.7 J/g and the heat of vaporization is 2259.4 J/g.
The alkaline earth metal beryllium, Be, is very small and forms covalent compounds instead of ionic compounds. Knowing this what type of solids would BeFCl and BeCl2 form and which would have the higher melting point
Multiple choice questions in free energy change and What is the free energy change in kJ/mole?
Suppose we are dealing with calcium chloride as opposed to the chemical in the video. If a solution contains 70 g of calcium chloride per 100 g of water at 25 degrees Celsius
When 0.100g of graphite is burned completely in a bomb calorimeter(heat capacity =3.344kJ/?C), containing 3000 g of water, a temperature rise of 0.21?C is observed.
If an FM radio station broadcasts at a frequency of 93.6MHz (1MHz=106 Hz or cycles per second). Explain what is the wavelength of the radiation in meters
Determine the freezing point of a solution which contains 0.31 mol of sucrose in 175 g of water. Kf = 1.86°C/m
A sample of 12.4 g NH3on oxidation produces 6.7 g of NO. Calculate the percent yield. Reaction: 4 NH3+ 5 O2→ 4 NO + 6 H2O
Consider a 1.0-L sample of helium gas and a 1.0-L sample of argon gas, both at room temperature and atmospheric pressure. Answer the following questions:
The gas mixture contains 2.5% sulfur dioxide (SO2) by weight. How many pounds of SO2 are released in one week? (Sig figs matter)
The reaction below has a Kc value of 1.0 × 1012. What is the value of Kp for this reaction at 500 K. 2 SO2(g) + O2(g) 2 SO3(g)
question how do the units moll and ppm compare? you will be given a 100.5 ppm iron stock solution the iron is ferrous
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