None 1- Which of the following mixtures is not a buffer and calculate its pH: (K,-K, =1.8 x 10)a- 25ml 0.IM HOAc mixed with 15ml 0.IM NaOAc b- 25ml 0.IM NH3 mixed with 10ml 0.IM NH.CIe- 25ml 0.IM NH, mixed with 25ml 0.IM HCI d-25ml 0.IM HOAC mixed with 10ml 0.1M NAOH2- A sample consists of 2 mole of perfect (ideal) gas at 250K is compressed reversibly and adiabaticallyuntil its temperature reaches 300K. Given that Cv-27.5 JKmolr". The values of q, w, AE, AH and AS are:a- (0, 2750J, 2750J, 3581.4J, 0) b- (0, 1246.5J, 2750, 0, 0) c- (0,0, 5750J, 755J, 0) d. none of them

1.Buffer solution mean a solution that retard the change of pH when H+ or OH- is added, in buffer…

Answered: 1- Which of the following mixtures is…

1- Which of the following mixtures is not a buffer and calculate its pH: (K,=K, =1.8 x 10) a. 25ml 0 IM HO 4c mixed with 1Sml 0 IME Na04c h25mLO IM NH, mivedd with 10al 0 IM NH.CI

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

None

1- Which of the following mixtures is not a buffer and calculate its pH: (K,-K, =1.8 x 10)
a- 25ml 0.IM HOAc mixed with 15ml 0.IM NaOAc b- 25ml 0.IM NH3 mixed with 10ml 0.IM NH.CI
e- 25ml 0.IM NH, mixed with 25ml 0.IM HCI d-25ml 0.IM HOAC mixed with 10ml 0.1M NAOH
2- A sample consists of 2 mole of perfect (ideal) gas at 250K is compressed reversibly and adiabatically
until its temperature reaches 300K. Given that Cv-27.5 JKmolr". The values of q, w, AE, AH and AS are:
a- (0, 2750J, 2750J, 3581.4J, 0) b- (0, 1246.5J, 2750, 0, 0) c- (0,0, 5750J, 755J, 0) d. none of them

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500.0 mL of 0.100 mol·L HCl(aq) was added to a high quality insulated calorimeter containing 500.0 mL of 0.100 mol·LNaOH(aq). Both solutions had a density of 1.000 g·mL and a specific heat of 4.184 J·g ·K . The calorimeter had a heatcapacity of 850.0 J·K . The temperature of the entire system rose from 25.50 C to 26.05 C.Calculate the heat of reaction. Thank you!
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