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The molar solubility of AgBr in water is 7.31x10^-7 mol dm^-3 at 25C. What is the standard potential of the cell Ag(s)/AgBr(aq)/AgBr(s)/Ag(s) at that temperature?
What is ozone and how it works as a protective molecule for our environment? What are the effects of CFCs on the ozone layer.
how many grams of magnesium metal will react completely with 4.8 liters of 5.0 m hcl? show all of the work needed to
Titration of a 10.0mL solution of KOH requires 22.0mL of 0.0310M H2SO4 solution. What is the molarity of the KOH solution
Write the net ionic equation to show the formation of a precipitate (insoluble salt) when the following solutions are mixed. Write noreaction if no insoluble salt forms CaCl2(aq)+Mg3(PO4)2(aq)
The electronegativty for both sulfur and carbon is 2.5. Therefore the compound CS2 would be expected to A) be ionic with C as the anion
For weak acid, HX, Ka = 1.0 10^-6. Calculate the pH of a 0.82 M solution of HX.
What is the volume of 0.5694 moles of gold? Density of gold is 19.30 g/mL The atomic mass of gold is 196.97.
What is the osmotic pressure of a solution made from dissolving 30.0 g of glucose, C6H12O6, in 700 mL of water at 21.0C
A buffer solution is prepared by adding 15.00 g of sodium acetate ( NaC2H3O2) and 12.50 g of acetic acid to enough water to make 500 mL of solution.
A "free" element A monoatomic ion Part of an ionic or covalent compound Part of a polyatomic ion I know that H and O's numbers can change depending on how they are bound to other elements, but usually H is +1. However a more simple way to memorize..
What volume of 18.5 C Water must be added together , with a 1.23 kg piece of iron at 68.5 C , so that the temprature of the water in the insulated container such as the temprature remains constant at 25.6 C
Four aldehydes and four hydrazines were used to explore hydrazone antibacterial activity in a combinatorial technique. How many reactions and antibiotic screenings would have been required to carry out this analysis in a non-combinatorial fashion?
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