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A child's cubic play block has a mass of 120 g and sides of 5.00 cm. When placed in a bath tub full of water, will the cube sink or float? A ball with a radius of 8.00 cm and a mass of 600 g is thrown into a lake. Will the ball sink or float?
a 5.00 ml sample of isopropyl alcohol has a mass of .930 g whe measured at 20 degrees celsius. what is the specific
The sample requires 48.24 mL of 0.08893 mol/L Na2S2O3 to reach the equivalence point. Assuming that the AU3+ and Li+ ions are unreactive during the titration, determine the mass percent of LiCLO in the sample.
Supplementary, the molecular weight of the compound was found by the Dumas Method to be 118.6 g/mol. Determine the empirical formula as well as the molecular formula of the compound.
Compute the change in temperature when 1 g sodium chloride is dissolved in 250.0 mL of water is initially at 27 C. The heat capacity of water is 4.184 J/mL/K. Neglect the heat capacity of the NaCl.
Calculate the expected change in temperature for 1.7 g of NH NO dissolved in 50.0 2 cal mL of H O. Assume that the calorimeter absorbs no heat. (ie. C =0)(Remember to use dimensional analysis
calculate the potential of a platinum electrode immersed in a solution that is prepared by mixing 25 ml of 0.0832 M V2(SO4)3
If the core electrons were totally effective at screening the valence electrons and the valence electrons provided no screening for each other, what would be the effective nuclear charge acting on the 3s and 3p valence electrons in P?
Depict the skeletal structure for the major organic product formed when 1-butyne reacts with 1 equivalent of HBr.
explain why in the sample calculations 0.1 g of the unknown produced a greater freezing point depression than the same
A 47.0 mL solution of 0.155 M iron (III) perchlorate is prepared. This solution is then titrated with 18.4 mL of 0.250 M potassium hydroxide. What is the concentration of iron (III) perchlorate that remains in the solution
Explain what the recation mechanism looks like between an aldehyde and iodoform, an ester and iodoform, as well as an aromatic acid with iodoform.
If the volume of EDTA needed to reach the endpoint was 26.9 mL in trial one, 27.3 mL in trial two and 26.4 mL in trial three, what is the hardness of the water in ppm + 95% confidence limit
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