Determine the weight-average molecular weight of a thermoplastic which has the following molecular weight distribution and polydispersity index of 1.05 Weight fraction of Chains with MW of Chains in grams/mole Specified Molecular Weight

2.7 Assume household vinegar contains 5.00% acetic acid by weight and that the density of vinegar is the same as the density of water (1.00 g/mL). What volume of vinegar would be required to react fully with 5.00 g of sodium bicarbonate?

4.84. Aluminum chloride (AICI3) is used as a catalyst in the production of polyisobutylene, which is used in automobile tires. Scrap aluminum metal reacts with chlorine gas (Cl,2) to produce AICI; . Suppose that 2.70 g of Al and 7.10 g of Cl2 are mixed. What is the maximum mass of AlCl, that could be formed?

Chapter 3. F 3.57 Write a balanced equation for the following gas phase reaction (carbon is black, hydrogen is light blue, and fluorine is green): (b) Liquid disilicon hexachloride reacts with silicon dioxide, hydrogen chloride gas, and hy (c) When nitrogen dioxide is bubbled into nitric acid forms and gaseous nitrogen mono in to- mmol mol]. wol Problem in Context volved 3.64 Loss of atmospheric ozone has led to Antarctica. The loss occurs in part throu ducing 6% C, nula? Glom von wor steps: (1) Chlorine atoms react with ozone (O3) to ide and molecular oxygen. ain re- en? (2) Chlorine monoxide forms CI0OCI. (3) CIOOCI absorbs sunlight and breaks molecular oxygen. 3.58 Write balanced equations for each of the following by insert- ing the correct coefficients in the blanks: (a) Write a balanced equation for each st (b) Write an overall balanced equation fo (a) _Cu(s) + _S8(s) → _Cu,S(s) H,PO,(1) biloa Calculating Quantities of Reactant a (Sample Problems 3.12 to 3.18) (b) _P,O10(s) +…

6. (3 points) Hydralazine is a drug used to treat heart disease. It is 59.99% carbon, 5.03% hydrogen, and 34.98% nitrogen and has a molecular mass of 160.178 g/mol. What is the molecular formula for hydralazine?

(5.5, 5.7 & 5.8) Classify the following reaction. Ba(NO3)2(aq) + K₂SO4(aq) --> O acid-base reaction O gas-forming reaction O decomposition reaction O precipitation reaction

6.24 Ethanol, used in alcoholic beverages, can be produced by the fermentation of sucrose, which is found in sugar cane and other plants. The balanced equation for the fermentation process is C12H„0,(s) + H,0(1) – (a) What mass of ethanol, C,H,OH, would be produced when 2.50 g sucrose reacts by this process? (b) What mass of CO, would also be produced? 4C,H,OH() + 4CO,(g)

8.8

(10) Calculate the percent by mass of each element in Al(HSO4)3.

What are the molecular masses of the following pharmaceuticals? (a) C33H35FN;O5 (atorvastatin, lowers blood cholesterol) (b) C„H„F;O‚S (fluticasone, anti-inflammatory) (c) C16H16CINO,S (clopidogrel, inhibits blood clots)