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A 9.36-g piece of platinum is heated to 98.6 °C in a boiling water bath and then dropped onto ice When the metal's temperature has dropped to 0.0 °C, it is found that 0.37 g of ice has melted. What is the specific heat capacity of platinum?
How many grams of LiCl are needed to make a saturate solution with 300 grams of H2O if the molality of the solution is 19.7.
What spectral features in the MS, CNMR, HNMR and IR of benzoic acid and methyl benzoate allow you to differentiate between them
Sodium ethoxide, NaOCH2CH3, contains both covalent and ionic bonds,
If 7.50 g of the unknown compound contained 0.250 mol of C and 0.500 mol of H, how many moles of oxygen,O, were in the sample?
calculate the specific heat capacity of zinc given that a 65.5g sample loses 2008J of heat when cooled from 100.0 degrees celcius to 21.1 degrees celcius.
Describe the expected results of the following tests or reagents on the sphingolipid N-palmitoyl-D-sphingomyelin
A helium-filled weather balloon has a volume of 714 L at 23 oC and 750 mmHg. It is released and rises to an altitude of 3.78 km, where the pressure is 546 mm Hg and the temperature is -2oC. The volume of the balloon at this altitude is
The difference in chemical potential between two regions of a system is +7.1 kJ/mol. By how much does the Gibbs free energy change when .10 mmol of a substance is transferred from one region to the other?
What is the Molarity of Phosphoric acid stock used to make 750 ml of dilute 4 N soludtion if 52 ml of concentrated solution was use
Write a net ionic equation for the reaction between aqueous solutions of perchloric acid and rubidium hydroxide.
what are the special characters of hollow tube, herring bone and bambo like carbon nano tubes in chemistry?
The mass of the isotope, I-129, is 128.905 amu while the atomic mass of the contaminated iodine sample is 127.1982 amu. What is the mass of the contaminant?
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