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You place 30.4 ml of 0.23 M Ba(OH)2 in a coffee-cup calorimeter at 25.00°C and add 64.4 ml of 0.528 M HCl, also at 25.00°C. After stirring, the final temperature is 29.14°C. {assume that the total volume is the sum of the individual volumes and that the final solution has the same density (1.00 g/ml) and specific heat capacity (4.184 J/g°C) as water}. Calculate the change in enthalpy, Δ H, of the reaction (in kJ/mol) of water formed. Enter the appropriate sign (+/-). Enter to 1 decimal place.
the chromic acid test acetone, formaldehyde, propanal, 3-pentanone, acetophenone, and benzaldehyde
Question- Given the Voltaic cells what is the equation for the spontaneous redox reaction and cell diagram notation.
Find out the ( Number of waters of hydration -Molecularweight -Mass of water in one mole -Mass NOT water in mole-Mass percent water )
Br2 and ICl have similar molecular weights which compund has a higher boiling point specifically
The free energy change Delta GT at 2400 K is equal to 1.22*10^5 J/mol. Calculate the equilibrium constant at 2400 K.
Problem- A gaseous system undergoes a change in temperature and volume. What is the entropy change for a particle in this system if the final number of microstates is 0.662 times that of the initial number of microstates
The concentration of commercially available concentrated nitric acid is 70.0 percent by mass, or 15.9M in 100 grams of solution, there are 1.11 mol of HNO3. Calculate the volume of 100 g of solution
What must be the initial temperature of 22g of steam that is mixed with 90g of water at 68 degree celcius in an adiabatic calorimeter with a heat capacity of zero and that produces
Determine each of the following. 1) the initial pH? 2)the volume of added acid required to reach the equivalence point
The effective nuclear charge, Zeff, for a valence electron can be approximated using the "core charge" of the atom, that is, the total charge of the nucleus and the inner (non-valence) electrons.
Question- Understanding the high-temperature behavior of nitrogen oxides is essential for controlling pollution generated in automobile engines. The decomposition of nitric oxide (NO) to N2 and O2 is second order with a rate constant of 0.0796 M^-..
how to do the Empirical Formula is confusing. The substance is Magneiusm Oxide with .16G. The mass of Magneisum is .12G
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