1. What compounds are in the following?Sodium bicarbonateBaking powderBaker's ammonia2. What is the purpose of the Gas Pressure Sensor for our measurements?3. What is the purpose of using baking soda or baking powder?4. Simona set up an experiment to measure the volume of 5.0 g of CO2 gas given off during areaction at 298 K. She measures the pressure to be 5 kPa. What is the volume of gas?

What compounds are in the following?Sodium bicarbonate: It is composed of sodium ions (Na+) and…

Answered: 1. What compounds are in the following?…

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter5: Gases

Section: Chapter Questions

Problem 5.2PAE

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1. A 0.68 gram sample of a volatile liquid was heated to 358 K. The gas occupied 265 mL of space at a pressure of 0.95 atm. What is the molecular weight of this gas? PV = nRT and R = 0.082 atmL/moleK. (Make sure that all your units agree/match R)2. An aspirin sample, 0.62 grams, was titrated with 28 mL of 0.105 M NaOH solution. What is the percent purity of this aspirin sample? (MM of Aspirin = 180. g/mol)3. A sample of hydrate was heated thoroughly. How many waters of hydration are there if the anhydrous salt had a dry mass of 12 grams and a molar mass of 185 g/mol? The mass of water evaporated from the hydrate was 5.0 g.4.A sample of water (80 grams) had a temperature change of 6. ℃. What was the heat change of this sample? (q = m c ΔT, c = 4.18 J/ g ℃)5. A 6.0 gram sample of epsom salt, MgSO4 ·nH2O, was heated. After heating, 2.9 grams of anhydrous salt remained. How many waters of hydration does epsom salt contain?6. What is the theoretical yield of aspirin if you started your…
Q15 and Q16 and Q17 please
C. 92.3 m d. 226 mL 4. Solution B was prepared from solution A as shown below. The concentration of solution B is: 2. 2.00 M b. 2.00 x 10-3 C. 8.00 M d. 8.00 x 10-3 هایی ناخذ الكيو ستة آلية deez 2.00 ml A 500.00 ml M = 2.00 M X 500.00 ml M = ??
Please answer question 3ab
2. Suppose the concentration of CO₂ in the atmosphere is 360 ppm. Convert this to g/m³ when temperature and pressure is 20°C and 100hPa..
15. Carbon dioxide makes up approximately 0.04% of Earth's atmosphere. If you collect a 2.0-L sample from the atmosphere at sea level (101.33 kPa) on a warm day at 27 °C, how many CO2 molecules are in your sample? * a. 5 x 10^20 b. 5 x 10^21 O c. 5x 10^22 d. 5 x 10^23
1. A gas has a volume of 300 mL at 300 mm Hg. What will its volume be if the pressure is changed to 500 mm Hg? 12. How many liters of 3.4 M solution can be made using 78 grams of isopropano (C3H8O)? 14. What is the concentration of a solution made from dissolving 32.9 grams of ammonium nitrate in a total solution volume of 500.0 mL?
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The research group has recently focused on identifying the chemical properties of fluorocarbons, such as CF4 and C2F4. These fluorocarbons display a very different reactivity compared to hydrocarbons. Teflon (C2F4)n is a fluoropolymer. When Teflon is mixed with silica at high temperature, all solid decomposes into gases. Write down the reactions that can take place during the process and explain your reasoning.
25 mL of hydroiodic acid generates 1.20 L of H2 gas at STP conditions when combined with excess zinc. What is the concentration (mol/L) of the hydroiodic acid? Zn + 2HI -> Znl2 + H2
What are the Volumes of HCl from the 3 Trials?
5. In the experiment aimed to calculate the molar volume of a gas, a 0.02 mole of [CuCO3.Cu(OH)2] compound was heated and decomposed completely to copper oxide, water and CO2. Assume that the pressure is 760 mmHg, the temperature is 27oC, and the water vapor pressure is 20 mmHg. a. Write the general equation. b. What is the molar volume of the dry CO2 produced in the experiment. c. Draw the electron pair and molecular geometry of CO2. What is the type of hybridization of Carbon atom?

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