1.NaN3 (s)- Na (s) + N2 (g)Provided above is the UNBALANCED decomposition reaction of sodium azide, NaN3used to inflate safety airbag. Determine the amount (in gram) of NaN3 required to beused if the target volume of N2 gas is 6.6 L. Given the airbag is tested in standardtemperature and pressure (STP) condition.A measurement of lead concentration in a river water is 4.2 x 10° mol/L. If thedrinking water safety limit of lead is set 15 ppb, determine whether the river water issafe for drinking. Given the density of the solution is 1 g/mL.2.A 42 L gas cylindrical tank was filled with oxygen gas. The gas tank was moved froma storage with a temperature of 37 °C (25 atm pressure) to a laboratory with atemperature of 21 °C. Determine the pressure of the tank in the laboratory.3.A fully filled 1000 L sewage water tank contains 55 mol of dissolved non-volatilewaste material.i.Calculate the osmotic pressure required for the reverse osmosis system toproduce clean water. Given the temperature of the tank is 35 °C.Determine the pressure if the waste material above are replaced with similaramount of glucose (MW = 180.156 g/mol). Explain your answer.ii.4. 1.Iron (III) chloride, FeCl; is an orange to brown-black solid at room temperature. It is usedin drinking water production and sewage water treatment as well as catalyst for severalchemical reactions. It is also non-combustible but highly corrosive to metals and tissuewhen wet.26Write the electronic configuration of Iron and Chlorine atoms with Z= and Z =17 respectively.By referring to the given periodic table, compare the electronegativity and radiusi.ii.size between iron and chlorine.iii.Draw the Lewis structure of solid Iron (III) chloride.Using your knowledge of chemistry, determine the type of bonding present in Iron(III) chloride.iv.Rasputin, often referred to as “mad monk", was a very powerful figure in the life ofAlexandra, the last Tsarina of Russia. His enemies decided to kill him using a cyanidecompound. Cyanide compounds are deadly poisons. Using a bottle of potassium cyanide,they attempted to poison a cake and some wine. Rasputin ate the cake and drank the wineand yet was not harmed. Given the following information :KCN (s) + acid (aq) → potassium salt (s) + HCN (g)H-C=N:KС ::N :Molecular mass : 27.025 g/molTb : 25.6 oCTm : -13.4 oCColourless to pale-blue gasMolecular mass : 65.116 g/molТb: 1625 оCTm : 634 oCSolid white powderi.State all types of intra- and inter-molecular bonding exist in both compound. Usea table to facilitate your answer.Explain why HCN exist as a gas while KCN exist as a solid at room temperature.ii.2.

Answered: Image /qna-images/answer/8a581cf0-ff93-4a9c-b602-04fd4f977075.jpg

1. NaN3 (s) - Na (s) + N2 (g) Provided above is the UNBALANCED decomposition reaction of sodium azide, NaN3 used to inflate safety airbag. Determine the amount (in gram) of NaN3 required to be used if the target volume of N2 gas is 6.6 L. Given the airbag is tested in standard temperature and pressure (STP) condition. A measurement of lead concentration in a river water is 4.2 x 10° mol/L. If the drinking water safety limit of lead is set 15 ppb, determine whether the river water is safe for drinking. Given the density of the solution is 1 g/mL. A 42 L gas cylindrical tank was filled with oxygen gas. The gas tank was moved from a storage with a temperature of 37 °C (25 atm pressure) to a laboratory with a temperature of 21 °C. Determine the pressure of the tank in the laboratory. 3. A fully filled 1000 L sewage water tank contains 55 mol of dissolved non-volatile waste material. i. Calculate the osmotic pressure required for the reverse osmosis system to produce clean water. Given the temperature of the tank is 35 °C. Determine the pressure if the waste material above are replaced with similar amount of glucose (MW = 180.156 g/mol). Explain your answer. ii. 2. 4.

1. NaN3 (s) - Na (s) + N2 (g) Provided above is the UNBALANCED decomposition reaction of sodium azide, NaN3 used to inflate safety airbag. Determine the amount (in gram) of NaN3 required to be used if the target volume of N2 gas is 6.6 L. Given the airbag is tested in standard temperature and pressure (STP) condition. A measurement of lead concentration in a river water is 4.2 x 10° mol/L. If the drinking water safety limit of lead is set 15 ppb, determine whether the river water is safe for drinking. Given the density of the solution is 1 g/mL. A 42 L gas cylindrical tank was filled with oxygen gas. The gas tank was moved from a storage with a temperature of 37 °C (25 atm pressure) to a laboratory with a temperature of 21 °C. Determine the pressure of the tank in the laboratory. 3. A fully filled 1000 L sewage water tank contains 55 mol of dissolved non-volatile waste material. i. Calculate the osmotic pressure required for the reverse osmosis system to produce clean water. Given the temperature of the tank is 35 °C. Determine the pressure if the waste material above are replaced with similar amount of glucose (MW = 180.156 g/mol). Explain your answer. ii. 2. 4.

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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Hydrogen peroxide (34.02 g/mol) decomposes into water and oxygen gas according to the reaction 2 H₂O2 (1) → 2 H2O (l) + O2 (g) A 7.50 g sample of hydrogen peroxide is sealed in a 375 mL container at 350 K. Identify the strategy you would use to determine the pressure of O2 gas produced from the decomposition of the hydrogen peroxide sample. -> grams H2O2 → moles H2O2 → moles O₂ → pressure 02 → moles 02 → pressure O2 → grams H2O2 moles H2O2 pressure 02 → moles 02 → moles H2O2 · →> grams H2O2 moles H2O2 → pressure 02
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Using your knowledge from the Unit 11, Gas stoichiometry solve the following problem. (Show your work to receive a full credit. ) Car airbags inflate when sodium azide (NaN3) located in the airbags explodes during collision. Calculated the volume of gas produced at STP conditions if 41.0 g of NaN3 was used to inflate airbag. 1) Write a balanced equation when NaN3 decomposes into sodium (s) and nitrogen ( g). 2) Calculate moles of sodium azide. 3) Use mol-mol ratio to find moles of nitrogen gas produced from the given amount of NaN3. 4) Calculate the volume of gas produced at STP.
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if 70L of gas at 20°C and 98.5 kPa is required to completely fill a typical air bag, determine what mass of sodium azide [NaN3(s)] must be stored in the inner reaction container.