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which are hybrid orbital the carbon at the following molecules a, H3C-CH3 b, H3C-CH= CH2 c, CH3-C Tripl bond C-CH2OH d, CH3CH=O
A certain quantity of gas occupies 61.3 mL at 68C. If the pressure remains constant, what would be the volume of the gas at 128C?
How do we find the concentration, c, depending on thiele modulus and the particle diameter? We do not know the value of thiele modulus.
How much heat (in Joules) is gained by the water where a chemical reaction takes place in 100 mL aqueous solution and has a temperature increase of 14C? [hint: ignore any effects by the calorimeter]
What would happen to the solubility of potassium chloride in water as the water temperature increased from 25 degrees celsius to 100 degrees celsius?
The empirical formula of a compound is found to be P2O5. Experiments show that the molar mass of the compound is 560g/mol. What is the molecular formula of the compound?
what is the molality of ethanol in a solution made by dissolving 14.6g of ethanol, C2H5OH, in 53.6 g of water?
The ball has a mass of 0.5 kg and a diameter of 22 cm. What is the average density of the basketball?
Calculate the molar mass (g/mol) of the element to three significant figures.
what amount of heat would need to be added to 5.0 x 103 g of water to change its temperature from 21c to 84c?
It takes 245 kJ/mol to eject electrons from a certain metal surface. What is the longest wavelength of light (nm) that can be used to eject electrons from the surface of this metal via the photoelectric effect?
Calculate Kp at 298 K and 490 K for the reaction NO(g) + 1/2 O2(g) = NO2(g) assuming that Delta H(g) is constant over the interval 298 K - 600 K.
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