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box contains a mixture of small copper spheres and small lead spheres. The total volume of both metals is measured by the displacement of water to be 436 and the total mass is 4.26 .What is the percentage of copper?
The final temperature of the water and metal was 25.0 C. Assuming no heat is lost to the surroundings,calculate the specific heat of the metal and estimate its atomic weight
The flask was then shaken until the solution was uniform. A 25.0-sample of this glucose solution was diluted to 0.500 . How many grams of glucose are in 100. of the final solution?
How many grams of aluminum hydroxide are obtained from 18.2g of aluminum sulfide?
Use electronegativity values to arrange the following bonds in order of decreasing polarity: N-O, N-N, N-P, and C-N
Check your gas chromatogrm for the presence of compounds other than isopentyl acetate. Explain the presence of any additional
Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies (in J). 1. 103.7 MHz (typical frequency for FM radio broadcasting) 2. 1100 kHz
For barium flouride Ksp= 2.4 x10^-5 compared to its solubility in pure water, will barium flouride be more soluble, about equally soluble or less soluble in each of the following solutions
When 2.00 g of NaOH is added to 50.0 ml of 1.0 M HCl solution in a constant pressure calorimeter, the temperature increased by 13.1oC. Calculate the heat of neutralization in KJ/mol
The Ksp for bismuth (III) iodide is 8.1 x 10-19. Calculate its solubility, molar solubility, and concentration of each species at equilibrium.
how much energy is required to vaporize 48.7 g of CH2Cl2 at its boiling point if its Hvap = 31.6 kg/mol
What are 3 most significant structural differences between HPLC equipment and Ion Chromatography instruments
Disulfur dichloride is produced by reacting chlorine gas with molten sulfur. What is the percent yield if 3.25 g S2Cl2 is isolated from the reaction of 5.0 g S8 and 3.75 g Cl2
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