nickel

Most popular questions and responses by nickel
  1. chemistry

    When 0.752 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 12.2C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to

    asked on February 10, 2007
  2. chemistry

    When 0.752 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 12.2C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to

    asked on February 9, 2007
  1. Math

    Use a calculator, divide 3 / 4, multiply that by 100, that will be your percentage.

    posted on July 16, 2008
  2. Math

    I see what you're thinking, you wanted to multiply 5.25 * 200, which would give you 1050. But that would be wrong. What you need to realize is that the 5.25 is a percentage, so instead of multiplying 200 * 5.25, you need to multiply 200 * 0.0525 and you

    posted on July 16, 2008