Computing average atomic mass
When M2S3(s) is heated in air, it is converted to MO2(s). A 3.700-g sample of M2S3(s) shows a decrease in mass of 0.207 g when it is heated in air. What is the average atomic mass of M?
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The pka of the acid function at the 2-position is approximately 2, whereas that at the 1-position is about 3. Which of the two is more acidic and why?
A rifle is aimed horizontally at a target 50.0 m away. The bullet hits the target 1.70 cm below the aim point. What was the bullet's flight time? What was the bullet's speed as it left the barrel?
An inductive circuit takes a current of 10.5 amperes when connected to a 500 volts 50c/s supply. this current rises to 12.5 amperes when frequency is reduced to 40 c/s. the voltage being maintained constant.find the resistance and inductance o
what will be the heat capacity of a constant pressure, coffee-cup calorimeter that contains 100.0 ml of 3.0 M HCl solution? the density of the sloution is 1.098 g/mL, the specific heat capacity of the HCl solution is 4.1 J/gK and the heat capacity
If 4.86 g of solid carbon dioxide was placed into an evacuated 2.00 L container, sealed, and then heated until it completely changed to a gas with a final temperature of 75 degrees celcius, what would be the pressure?
Interpret each chemical equation in terms of interacting particles.
Balsa wood has been used for many years as a model making material. However, light weight modern, alternatives are also available. One such material is depron foam.
Find the pH of each of the following solutions of mixtures of acids.
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ewrite in a paragraph 5 primary taste sensations: Sweet: stimulated by carbohydrates Sour: stimulated by acids (H+) Salty:
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