posted by .

Indicate which of the following has the highest entropy at 298 K.

0.5 g of HCN
1 mol of HCN
2 kg of HCN
2 mol of HCN
All of the above have the same entropy at 298 K.

  • Chemistry -

    Change all of the answers to grams. The largest number of grams will have the largest S.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    are the noble gases of NCCN cyanogen = Argon HCN hydrogen cyanide = Neon thanks I don't know how to answer this. There are 10 electrons, all bonding electrons in HCN. In the case of F, for example, we say its ion is isoelectronic with …
  2. chemistry

    Calculate the pH of a 1.33 mol/L solution of HCN is the Ka value of HCN is 6.2x10^-12
  3. chemistry

    What is the pH of a 1.24 mol/L solution of HCN(aq) if its Ka = 6.2 x 10-10?
  4. chem

    Calculate the [h3o+] and [oh-], pH and the percent dissociation for both 0.25 mol/L HCl and 0.25 mol/L HCN. 0.25 mol/L HCL [H+] = 0.25 mol/L [OH-] = 1 x 10^-14 / 0.25 = 4 x 10^-14 pH = 0.60 % dissociation = ?

    i have an exam friday and cant figure this question out! What is the pH of a 2.62 x 10 -1 M HCN solution ?
  6. Chemistry (repost)

    Which of the following pairs of substances, when mixed in any proportion you wish, can be used to prepare a buffer solution?
  7. Chemistry

    based on the following chemical equation HCN+O2 yields N2+CO2+H20 identify the limiting reactants and the mass of N2 produced when 100.0g of HCN react with 100.0g of O2. a. the limiting reactant is HCN and 25.9g of N2 are produced …
  8. Chemistry

    Estimate the equilibrium constant for the weak acid HCN, if a 4.68×10-3 M aqueous solution of HCN has a [H+] 0.00000151 M (make an exact calculation assuming that initial concentration is not equal to the equilibrium concentration). …
  9. Chemistry

    What are the equilibrium concentrations of all the solute species in a 0.95 M solution of hydrogen cyanide, HCN?
  10. Chemistry

    Consider 1.00 L of the buffer system that contains 0.200 M hydrocyanic acid(HCN) and 0.150 M sodium cyanide (NaCN). The pKa of hydrocyanic acid is 9.31. What is the [HCN] after 0.020 mol of HCl is added?

More Similar Questions