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Assuming that a neutron star has the same density as a neutron, calculate the mass (in ) of a small piece of a neutron star the size of a spherical pebble with a radius of 0.12.
A sample containing NaCl, Na2SO4, and NaNO3 gives the following elemental analysis: Na: 35.315%, O: 36.55%; Cl: 15.17%. Calculate the mass percent of each compound in the sample.
Draw the products of the following reactions. The aromatic ring, if present, is unreactive in all cases.
Explain what is meant by phase imaging AFM and what is an example of an experiment where specific properties can be quantified in an AFM experiment.
Calculate the mass percent of a solution that is prepared by adding 64.4 g of NaOH to 485 g of H2O
For the reaction PCl5-> PCl3+Cl2 kp= 26.03 at 800K. calculate the equilibrium partial pressure for the reactant and product if the initial pressures are PPCl5= .54 atm and PPCl3= .37 atm.
Calculate the molar solubility of Mn(OH)2 in moles/L and in g/L. What would happen to the solubility of Mn(OH)2 when 0.02 M NaOH is added to the solution. Calculate the new solubility after the addition of NaOH.
How much PV work is done in kilojoules for the reaction of 0.48 of with 0.24 of at atmospheric pressure if the volume change is -9.2
The molar mass of compound is measured to be 33.4, 35.2, 34.1, 33.9 g/mol in four trials. What is the avg molar mass & calculate standard deviation and %RSD for determination of the molar mass
Calcium hydride (CaH_2) reacts with water to form hydrogen gas. How many grams of CaH_2 are needed to generate 55.0 L of H_2 gas at a pressure of 0.995 atm and a temperature of 32 degrees Celsius
A solution containing .2g of an unknown substance in 2.5 g of cyclohexane is found to freeze at 5.1 C what is the molar mass of the unknown substance
Determine the volume (in Ml) of 1.0 teaspoon. 1 tablespoon = 3 teaspoons; 1 tablespoon = 1/2 fluid ounce
What are the spectator ions in the solution after the complete neutralization reaction occurs when mixing the strong base KOH (aq) and the weak acid HCN (aq)
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