Group the characteristics of the give substance according to their physical (extensive or intensive) or chemical properties. CHARACTERISTICS OF SOME PHYSICAL PROPERTIES |CHEMICAL PROPERTIES SUBSTANCES INTENSIVE EXTENSIVE 2. NacI with a mass of 37.9 g is colorless, odorless, and salty solid crystals. It has melting point of 801 degree Celsius. When dissolved in 100 mL water, it conducts electricity. It reacts with silver nitrate to form a white precipitates. It also react with water to form chlorine gas, hydrogen gas, and sodium hydroxide.

Group the characteristics of the give substance according to their physical (extensive or intensive) or chemical properties. CHARACTERISTICS OF SOME PHYSICAL PROPERTIES |CHEMICAL PROPERTIES SUBSTANCES INTENSIVE EXTENSIVE 2. NacI with a mass of 37.9 g is colorless, odorless, and salty solid crystals. It has melting point of 801 degree Celsius. When dissolved in 100 mL water, it conducts electricity. It reacts with silver nitrate to form a white precipitates. It also react with water to form chlorine gas, hydrogen gas, and sodium hydroxide.

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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One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is by titrating a sample of silver nitrate solution. Any chloride anions in solution will combine with the silver cations to produce bright white silver chloride precipitate. Suppose an EPA chemist tests a 250. mL sample of groundwater known to be contaminated with copper(II) chloride, which would react with silver nitrate solution like this: CuCl,(aq) + 2 AgNO3(aq) → 2 AgCl(s) + Cu(NO,),(aq) The chemist adds 68.0 mM silver nitrate solution to the sample until silver chloride stops forming. He then washes, dries, and weighs the precipitate. He finds he has collected 4.3 mg of silver chloride. Calculate the concentration of copper(II) chloride contaminant in the original groundwater sample. Be sure your answer has the correct number of significant digits. mg x10
Assume that your empty crucible weighs 15.98 g, and the crucible plus the sodium bicarbonate sample weighs 18.56 g. After the first heating, your crucible and contents weighs 17.51 g. After the second heating, your crucible and contents weighs 17.50 g. Answer the following questions based on this information.
Your crucible has a mass of 30.252 g when empty, and does not change upon heating. You add some solid iron and then weigh the crucible and iron to be 32.925 g together. You then burn the iron in the presence of oxygen following the procedure in the handout. Assume that there are no contaminates and all of the iron is converted to iron oxide. The final mass of the crucible and iron oxide is 33.976 g, which does not change upon heating. The unrounded empirical formula obtained from these measurements would be FeOX, where X is a decimal type number (not necessarily a whole number). Give the value of X in the blank below in decimal format with the correct number of significant figures.
3. In lesson 4, you added the ionic compound potassium chloride (KCI) to water and observed a temperature change. You used 10 molecules of KCI and varied the number of water molecules. The data table below shows the resulting temperature changes if you dissolved 10 molecules of KCI in 10, 71, and 100 molecules of water. What kind of relationship does the number of water molecules have with the magnitude of the temperature change? * Number of Water Initial Molecules Magnitude of Temperature (K) Temperature (K) Temperature Change (K) Number of Final KCI Molecules 10 10 300 292.48 K 7.52 10 71 300 294.91 5.09 10 100 300 296.36 3.64 What kind of relationship does the number of water molecules have with the magnitude of the temperature change? A direct relationship An inverse relationship The data shows no relationship
balance Na(s)+HCI(aq) NACl(aq)+H2(g)
The Haber process is used to industrially produce ammonia (NH3). Ammonia is the active ingredient in a variety of household cleaners. The data table below summarizes the experimental quantities of reactants and products collected from a specific batch. N2 (g) + 3 H2 (g) --> 2 NH3 (g) Substance Amount Used N2 10,000 g H2 15,000 g Amount Produced 11,150 g Substance NH3 If the company chemist calculated that 12,163 g of NH3 should be produced, what is the percent yield?
A solution of CaCl2CaCl2 in water forms a mixture that is 41.5%41.5% calcium chloride by mass. If the total mass of the mixture is 163.0 g,163.0 g, what masses of CaCl2CaCl2 and water were used?
4. A solution is prepared by taking a clean and dry 50.00 mL volumetric flask. Some sucrose (Mm 342.2 g/mol) is added to the flask with the following mass measurements recorded: mass of empty volumetric flask: 142.88 g mass of weighing dish + sucrose: 29.83 g mass of weighing dish after adding sucrose to volumetric flask: 24.62 g Some water is added to the flask, the solution stirred until all the sucrose is dissolved. Then water is added carefully to the mark on the flask. The filled flask is then weighed again. mass of filled volumetric flask: 187.30 g What is the mole fraction of water? Answer to 3 decimal places.
Combustion of hydrocarbons such as nonane (C,H20) produces carbon dioxide, a "greenhouse gas." Greenhouse gases in the Earth's atmosphere can trap the Sun's heat, raising the average temperature of the Earth. For this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide. 1. Write a balanced chemical equation, including physical state symbols, for the combustion liquid nonane into gaseous carbon dioxide and gaseous water. 2. Suppose 0.440 kg of nonane are burned in air at a pressure of exactly 1 atm and a temperature, of 20.0 °C. Calculate the volume of carbon dioxide gas that is produced. Be sure your answer has the correct number of significant digits. OL
Consider the reaction. heat 2 Al(s) + Fe,O,(s) → Al, O, (s) + 2 Fe(1) If 23.1 kg Al reacts with an excess of Fe, O,, how many kilograms of Al, O, will be produced? mass of Al, 0, produced: kg
esc One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is by titrating a sample of silver nitrate solution. Any chloride anions in solution will combine with the silver cations to produce bright white silver chloride precipitate. Suppose an EPA chemist tests a 250. mL sample of groundwater known to be contaminated with copper(II) chloride, which would react with silver nitrate solution like this: CuCl₂(aq) + 2 AgNO3(aq) → 2 AgCl(s) + Cu(NO3)₂(aq) C The chemist adds 90.0 mM silver nitrate solution to the sample until silver chloride stops forming. She then washes, dries, and weighs the precipitate. She finds she has collected 6.0 mg of silver chloride. olla Calculate the concentration of copper(II) chloride contaminant in the original groundwater sample. Round your answer to 2 significant digits. Ar mg x10 L x 5 ? Explnation :: 1 FI 2 Check F2 # 3 80 F3 $ 4 OOD 000 F4 % 5 A FS A 6 F6 & 7 90 Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of…
Assume that your empty crucible weighs 15.98 g, and the crucible plus the sodium bicarbonate sample weighs 18.56 g. After the first heating, your crucible and contents weighs 17.51 g. After the second heating, your crucible and contents weighs 17.50 g. Answer the following questions based on this information.