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Identify the unknown gas. What is the mass of the solid NH4Cl formed when 73g of NH3 are mixed with an equal mass of HCI? What is the volume of the gas remaining, measured at 14.0 degrees C and 752 mmHg? What gas is it?
What is the volume occupied by 29.1 g of argon gas at a pressure of 1.23 atm and a temperature of 399 K?
Consider a string with a length of 54.5 cm tied at both end (like on a stringed instrument). If the frequency of the first harmonic on the string is 256 Hz, determine the speed of the wave in the string. Post your answer ...
Assuming that air is 21.0 percent oxygen by volume, what volume of air in liters at 45.0 °C and 793 mmHg would be required to burn 185 g of ethanol (C 2 H 5 OH)?
Chemistry Practice Exam Directions on actual Exam: The exam consists of 2 sections (Chemical Bonding and Geometry and IMFs. Each multiple choice question is worth 4.33 points. You are allowed to use a scientific (nonprog ...
Could someone please help me Balance the following redox reaction in a basic solution: CuS + NO 3 - Ò Cu 2+ + NO + S 8
Using the following data, calculate the pressure of 100.0mol of CO(g) in a 40.0L container at 25 degrees Celcius using both the ideal gas equation and the real gas equation. Why are these two values so different? (aCO=14 ...
If it is considered that drinking 800 mL of water per day containing an arsenic concentration equal to the US EPA maximum contaminant level (MCL), delivers the dose to an adult that corresponds to a 1 in 10,000 excess ri ...
An empty 100-mL measuring cylinder weighs 132.456 g. When filled with rice to the 100-mL mark it weighs 220.345 g. After water has been added to fill the spaces between the grains, the weight is 250.123 g. What is the ...
The volume of a sample of nitrogen is 6.00 liters at 35oC and 740 torr. What volume will it occupy at STP?
How many seconds will be required to produce 1.0 g of chromium metal by the electrolysis of a Cr(NO3)3 solution using a current of 3.0 A? Could someone please help me with the work for this.
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