The heat of fusion AH, of propane (C3Hg) is 3.5 kJ/mol. Calculate the change in entropy AS when 2.1 g of propane freezes at -187.8 °C. Be sure your answer contains a unit symbol. Round your answer to 2 significant digits. 0 0 μ x10 ロ・ロ X O/0 S 5 2.

Select all the expressions equal to (p.a) = (x c) Ор Op⋅a÷x.c pa q Op a÷ (x c) 1 C.C (p.a) x c IC □ (p.a). Op a I C p.a T I. C

A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 7.80 kg of water at 32.2 °C. During the reaction 51.4 kJ of heat flows out of the flask and into the bath. - 1 Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 J'g ''K'. -1 Round your answer to 3 significant digits. x10

2,4-Dichlorophenoxyacetic acid ("2,4-D") is a widely used herbicide with the molecular formula C8H6Cl2O3C8H6Cl2O3. The pKapKa of 2,4-D is 2.73. A certain water-based herbicide product contains 130 gL−1gL−1 of 2,4-D.   What is the pHpH of the 2,4-D solution?

▾ Part A DA chemical reaction does not occur for this question When ethanol (C₂HO(aq)) is consumed, it reacts with oxygen gas (O₂) in the body to produce gaseous carbon dioxide and liquid water. Enter the balanced chemical equation for the reaction Express your answer as a chemical equation including phases. | ΑΣΦ Submit Previous Answers Request Answer x Incorrect: Try Again; 6 attempts remaining SARASER E Provide Feedback MAIKLIENT Next >

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