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Question: At -260 ?C the density of solid hydrogen is 0.0763 g cm-3.
(a) What is the radius of a hydrogen molecule estimated by Loschmidt's method?
(b) What is the value of NA that you obtain for this case?
Problem- Write the balanced equation for the ionization of the weak base pyridine, C5H5N, in water, H2O. Phases, such as (aq) or (l), are optional.
Can someone name a complexing agent that only binds to Mg(II) and is fluorescent as well. Or can you disprove that Chromonycin A3 is not selective to Mg(II)
The volume of ice has been estimeted to be 2.85 x 10^6 km^2. The density of ice is 918 kg/m^3. The radius of the earth is 6378.16 km. If the oceans represent 70.8% of the earths surface, calculate the increase in ocean depth that will result from ..
What is the kinetic energy in joules of this baseball when it is thrown by a major-league pitcher at 94.0mph?
how many meters away is a cliff if an echo is heard one half second away? assume that sound ws traveled at 343 m/s on that day.
A mixture of 0.2000 mol of CO2 0.1000 mol of H2 as well as 1600 mol of H20 is placed in a 2.000L vessel. The subsequent equilibrium is established at 500K.
When halogens react they tend to gain electrons rather than lose electrons. Pick the best two reasons why this occurs.
Iodine tricholoride, ICI3, will react with a chloride ion to form ICI4-. Which species, if any, acts as a Lewis acid this reaction
Write the net ionic equation for this reac- tion occuring in water: Calcium sulfide and iron(II) bromide are mixed to form iron(II) sulfide and calcium bromide.
The main idea of this lab is to decompose hydrogen peroxide by using KI. Moreover, determine the volume of oxygen gas by using the decomposition reaction.
Determine the mole fraction of HO2CCH2CHOHCO2H in this solution?
Calculate the unknown concentration of toluene using the calibration curve graph provided and explain your calculation?
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