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For a reaction at equilibrium, which of the following is the best way to think about it?
1. The concentration of intermediates becomes negligible.
2. concentration of reactants = concentration of products
3. The concentration of reactants and products are not related.
4. The concentration of reactants becomesnegligible.
5. forward rate = reverse rate
The density of a sodium sulfate solution is 1.07 g/cm3. The solution is 8.00% sodium sulfate by mass. How many cm3 of the solution are needed to supply 4.28 g of sodium sulfate?
the solubility product constant for MgF2 is 6.4 × 10-9. How many grams of MgF2 will dissolve in 150 mL of H2O at 25°C?
Write the overall reaction, showing how much ATP (Adenosine tri phosphate) can be produced per pentose used also write an equation for the generation of NADPH using ribose as a sole source of carbon?
calculate the molar mass of an unknown sunstance, if the freezing point of a solution containing 1.00 g of the unknown in 100g of camphor is 165.4 C.
calculate the weight of sodium hypochlorite, NaOCl.
When she introduced 3.63E-2 moles of N2(g) and 6.18E-2 moles of H2(g) into a 1.00 Liter container, she found the equilibrium concentration of NH3(g) to be 9.68E-4 M.
A saturated solution of nickel(II) sulfide contains approximately 3.6 multiplied by 10-4 g of dissolved NiS per liter at 20°C. Calculate the solubility product Ksp for NiS at 20°C.
A stock solution is prepared by adding 21 mL of 1 M AlCl3 to enough water to make 76 mL. What is the Cl- concentration of 40 mL of the stock solution?
What is the molarity of the solution if 310 of the solution reacts with magnesium to produce 7.40 of gas measured at STP?
In a certain experiement, 4.6 g Al is reacted with excess oxygen and 6.8 g of product is obtained according to this reaction: 4 Al + 3 O2 --> 2 Al2O3 What is the theoretical yield for this reaction
explain why the coupling of the diazonium salt with a phenol or an aromatic amine occurs at the para position.
How many grams of glucose are in 100. rm mL of the final solution?
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