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Assuming that a neutron star has the same density as a neutron, calculate the mass (in {\rm kg}) of a small piece of a neutron star the size of a spherical pebble with a radius of 0.16 mm
If 0.90 mole of MnO2 and 48.2 g of HCl react, which reagent will be used up first?
What volume of 0.100 M sodium hydroxide is required to completely neutralize 50.0 mL of 0.100 M phosphoric acid
consider the following thermochemical equation caco3s caos co2 ho 178 kj. how much heat must be absorbed by 22.5 g of
how many liters of NO gas can be produced at STP from 80.0 mL of a 4.00 M HNO3 solution and 10.0 g of Cu? 3Cu(s) + 8HNO3(aq) > 3Cu(NO3)2(aq) + 4H2O(l) + 2NO(g)
Draw a molecule that will produce a spectrum containing two triplets appearing at different chemical shifts and both having an integral of 2 hydrogens.c
consider the following reaction at a fixed temperature. 2so3g 2so2g o2g when the initial concentration of so3g is
How many constitutionally isomeric monochlorides can be formed on free-radical chlorination of 2,3,3-trimethylpentane? 2,3,3-trimethylpentane + Cl2 Heat
Calculate the pressure of oxygen for a system in equilibrium in which [NH4+] = [NO3-] at pH 7.00
A swimming pool is 26.15 yards long and 40.04 feet wide. The pool is filled with water from a hose that has a flow rate of 2.852 gallons/second. How many minutes will it it take to fill the pool to a depth of 4.771 feet
nbspit is given that the molar mass of a solvent 64.9 gmol normal boiling point 139.6 oc. the boiling point elevation
The freezing point of blood is -0.52C. (a) What is the osmotic pressure of the blood at 25C? (b) What is the vapor pressure lowering of the blood at this temperature?
Phosphorous-32 has a half life of 14.26 days. If a patient is initially given a dose ?of 1.55 g of Phosphorous-32, how much remains in the patient's body after 1 week. Assume none of the dose is excreted from the body
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