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How many moles of NaOH are present in 29.0 mL of 0.130 M NaOH?
How many grams of solute are present in 615 mL of 0.100 M KBr?
Predict any precipitates that are formed when the following solutions are mixed and give the net ionic equation. Ba(NO3)2 solution and KOH solution.
120.mL of H2O is initially at room temperature (22.0 degrees C). A chilled steel rod at 2.0 degrees C is placed in the water. If the final temperature of the system is 21.4 degrees C, what is the mass of the steel bar?
in a quench hardening process steel rods rho 7830 kgm3 cp 444 jkg.k and k 70 wm.k are heated in a furnace to 900oc
The first ionization energy of Na is 495.9 kJ/mol. What is the longest wavelength of light that could remove an electron from a Na atom
The temperature of the acid solution increases from 24.2 oC to 29.9 oC. Calculate deltaH for the reaction that occurred.
Draw a Lewis structure for sodium methylamide (NaNHCH3) showing bonds, lone pairs, and formal charges.
Microsoft Word - PC Part B and Solv Extract I Report_FA15.docxMicrosoft Word - PC Part B and Solv Extract I Report_FA15.docxMicrosoft Word - PC Part B and Solv Extract I Report_FA15.docx 1-Laboratory glassware comparison for solvent extraction: conc..
A 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 423 cubic centimeters and the total mass is 4.30kg.
While a pair of these die are tossed let the random variable associated with each outcome be the products of the two numbers at the top of the dice if the product is odd otherwise x=0.
How many fluoride atoms are in the tube of toothpaste? How many grams of sodium ion are in 2.10 toothpaste? How many molecules of triclosan are in the tube of toothpaste?
Predict the freezing point of a solution prepared by dissolving 8.9 g MgCl2 in 98 g H2O. Kf for water is 1.86 °C m-1. A) 3.5 °C B) -3.5 °C C) 5.3 °C D) -5.3 °C E) -0.51 °C
Acetylene gas (C2H2) is produced as a result of the following reavtion. CaC2(s) + 2H2O(l) yield C2H2(g) +Ca(OH)2(aq)
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