acid base indicator

•An acid/base indicator is red when the molarity of hydronim ion is less than 1.0x10-8 and yellow when the molarity of hydronium ion is greater than 1.0x10-6. What will the color of this indicator be in a solution of pH=5.0? •How many grams of NaOH are there in 3.00L of a 1.00M solution? Question also attached

chemistry word problem

•An atom of an element with an atomic number of 95 and a mass number of 241 undergoes decay by emission of an alpha particle. What are the atomic number, mass number and name of the product atom? •An atom of 63Ni undergoes loss of a beta particle. What are the atomic number, mass number and name of the product atom? Questi ...continues

chemistry word problem

•The reaction in an automobile airbag is: See attachment for equation If 80.0g of NaN3 reacts, what volume of N2(g) is produced at 25oC and a pressure of 1.00 atm.? See attachment for details

chemistry word problem

•If a person breathes in 20m3 of air per day and the air contains 263 micrograms of particulates per m3, how many grams of particulates does a person breathe in per day? Question also in attachment

Half Life

32P has a half-life of 14.26 days. If you start with 200.0 g of it, how many grams will remain after a time of 3(14.26) days?

Half-life Problem

32P has a half life of 14.26 days. If you start with 200.0 g of it, how many grams will remain after a time of 3(14.26) days?

Alpha/Beta Particles

A. An atom of an element with an atomic number of 95 and a mass number of 241 undergoes decay by emission of an alpha particle. What are the atomic number, mass number and name of the product atom? B. An atom of 63Ni undergoes loss of a beta particle. What are the atomic number, mass number and name of the product atom?

Acid/Base indicators

A. An acid/base indicator is red when the molarity of hydronim ion is less than 1.0x10-8 and yellow when the molarity of hydronium ion is greater than 1.0x10-6. What will the color of this indicator be in a solution of pH=5.0? B. How many grams of NaOH are there in 3.00L of a 1.00M solution?

Pressure in atm

What is the pressure in atm of 1.00g of NH3(g) in a 500mL container at 20 C? See attached file for full problem description.

equilibrium vapor pressures

compare the vapor pressures of methanol,ethanol,acetic acid, water, and benzene. Which compund appears to have the strongest intermolecular forces at 100C If one compound has a higher equilibrium vapr pressure than another at a particular temperature, will it necessarily have a higher equilibrium vapor pressure at all tempe ...continues