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The mass percent of water in a hydrate of MnCl2 is 36.41%. What is the empirical formula of the hydrate?
what is the concentration ratio of the free (and potentially toxic) Pb^2+ (aq) in the blood to the much less toxic Pb^2+ -EDTA complex
What is the theoretical yield (in grams) of the solid product when 8.02 g of iron(III) nitrate reacts in solution
First, plot the potential energy as a function of the electron's distance from the nucleus, i.e.,V(r) . (Be sure to remember the sign of this potential.)
Calculate the molar solubility of AgCl in a solution made by dissolving 10.0 g of CaCl2 in 1.00 L of solution.
The temperature of a 2.25 L sample of gas decreases from 35C to 20C. What is the new volume?
What is the rate of reaction when the initial concentrations of NO and O2 are 0.030 M and 0.025 M, respectively? 2 NO(g) + O2(g) --> 2 NO2(g)
why doen't the mass number decrease? (because there is one less neutron). But the atomic number increases due. What happens to the electrons?
A sample of gas occupies a volume of 115mL at a pressure of 720. mmHg. Calculate its volume at STP.
Nitrogen gas reacts with hydrogen gas to produce ammonia by the following equation, N2(g)+3H2(g)-->2NH3(g). a) If you have 1.80 mol of H2, how many grams of NH3 can be produced
Determines the rate constant for this reaction and express and determine how many mL of a 0.157M solution of KOH is required to react with 0.385g of CH 3 COOH?
Imagine that you are trying to design a new battery using the elements tin (Sn) and a halogen (Cl2, Br2, or I2) and you are using the reactions when SnCl2 and KBr are combined.
Determine the final concentration and Determine What mass of Ar is needed to exert half the pressure (at the same conditions of volume and temperature)?
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