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 & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter20: Environmental Chemistry-earth's Environment, Energy, And Sustainability

Section: Chapter Questions

Problem 6PS

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1. A 0.10 M HNO3 solution will be prepared from concentrated HNO3. a. Using the method outlined in Experiment 5, determine the concentration of a stock bottle of concentrated nitric acid. [density = 1.42 g/mL; 70% by mass HNO3] b. Calculate the volume of concentrated NO3 needed to prepare 500 mL of a 0.10 %3D M solution.
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…
6
chemical equation: What mass of precipitate will form if 1.50 L of highly concentrated Pb(ClO3)₂ is mixed with 0.500 L 0.300 M Nal? Assume the reaction goes to completion. the Balanced equation for the reaction of aqueous Pb(ClO3)2 with aqueous Nal. Include phases. $ 4 mass of precipitate: R F4 V % 5 T F5 G B ^ 6 MacBook Air F6 Y H & 7 N F7 U * 00 8 M DII F8 ( 9 DD F9 O V ) 0 F10 P ^. 1 F11 + g F12 20 del
H8. part A) Calculate thr mass percentage of Na2SO4 in a solution containing 10.5g Na2SO4 in 486g water part B) An ore contains 2.86g of silver per ton of ore (where 1 tor= 2,000 lb). What is the concentration of silver in ppm?
Q15 and Q16 and Q17 please
Q 18 and Q19 And Q20 please
Explain how a geologist might use the flame test to identify a cation fromdifferent mineral specimens: calcite (calcium carbonate) versus cuprite (copper Ioxide). Are there precautions needed? What are they?
Please answer question 3ab
Based from the given problem, What is the Normality of the sodium hydroxide solution?
The substance to be analyzed – is white, highly soluble in water salt. Interaction with concentrated sulfuric acid leads to evolving of reddish-brown gas with pungent odour. Addition of ammonium oxalate leads to formation of white precipitate, which is insoluble in acetic acid. Diphenylamine reaction turns color of the solution to violet. What kind of salt is this? Ca(NO3) 2 NaNO2 KBrO3 MgCl2
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..

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