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A 4.5 g nugget of gold absorbed 276 j of heat. What was the final temperature of the gold if the initial temperature was 25 OC ? The specific heat of gold is 0.129 j/g OC.
Consider the following reaction: PCl5(g) -> PCl3(g) + Cl2(g) .At equilibrium, [PCl5] = 2.00 M and [PCl3] = [Cl2] = 1.00 M. If suddenly 1.00 M PCl5(g),PCl3(g), and Cl2(g) are each added.
If 15 grams of copper(2) chloride react with 20grams of sodium nitrate, how much sodium chloride can be formed
What is the Ce 3+ concentration in a solution formed by combining 50.0 mL of 0.0500 M Ce 3+ with 50.00 mL of 0.150 M IO3-? The solubility-product constant for Ce(IO 3 )3 = 3.2 x 10 E-10.
The reaction is thought to follow second order kinetics which follows the relationship 1/[A]=1/[A]0+kt where [A] is the molarity at time, t, and [A]0 is the initial concentration.
Using a sample of a compound containing only oxygen and chlorine reacts with an excess of H2 gas to give 0.206 g water and 0.278 g HCl
How many moles of HCl need to be added to 150 mL of 0.50 M NaZ to have a solution with a pH of 6.50? (Ka of HZ is 2.3e-5). Assume negligible volume of the HCl.
calculate the average moles of ascobic acid in the pipetted sample used for titration d)Calculate the average moles of ascobic acid in the crushed tablet.
how many grams of iron (2) chloride would you need in order to make 2.0 L of a .050 M iron (2) Chloride solution?
what is the molar concentration of nitrous acid in a solution with a volume of 276 mL containing 17.1 grams of hydrogen nitrite?
What is the molarity of a solution that is 7.00% by mass magnesium sulfate and has a density of 1.071.
Car air bags operate by the explosive reaction of NaN3: 2NaN ( ) 2Na( ) 3N ( ) 3 2 s s + g
What is the molality of ethanol in a solution prepared by dissolving 5.00 mL of ethanol (C2H5OH, of density 0.800 grams/mL) in 25.0 mL of water (H2O, of density 1.000 grams/mL)?
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