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Problem- The reaction between the limestone and hydrochloric acid produces carbon dioxide as shown in the reaction.CaCO3(s) + 2HCl(aq) ? CO2(g) + CaCl2(aq) + H2O
Q) How many grams of CO2 can be made by reacting 149 g of CaCO3 with 149 g of HCl?
Q) How many grams of HCl are left over?
Chlorine dioxide, ClO2, has been used as a disinfectant in air conditioning systems. It reacts with water according to the equation:6ClO2 +3H2O ? 5HClO3 + HCl
If 140.6 g of ClO2 is mixed with 38.3 g of H2O, how many grams of which reactant remain when the reaction is complete?
I require skilled aid to answer the given problem
Barbital, Ka=1 X 10-8, a weekly acidic sleeping pill is titrated against 0.200 M KOH solution. Explain what is the pH after 10.0mL of KOH has been added to 200.0mL of 0.017 M of Barbital
A general chemistry student found a chunk of metal in the basement of a friend's house. To figure out what it was, he used the ideas just developed in class about density.
How many milliliters of 0.20M NaOH do you need to neutralize 40.0 ml of 0.12M acetic acid?
A protein biochemist attempted to determine the amino acid sequence of a decapeptide. Use the results from the trypsin, chymotrypsin, and cyanogen bromide treatments to suggest the amino acid sequence of this decapeptide.
A chemist wishes to prepare 200mL of a saturated solution of BaF2, the concentration of which is 6.3 x 10-3 mol/L. Determine the mass of BaF2 that will be needed to make up the 200mL of the solution.
Calcium nitrate is also product but it stays in solution as ions because it is soluble. Write the equation for this reaction making sure that it is balanced electronically and atomically. Remember, the result is calcium nitrate and lead (II) iodid..
A .8046 gram sample of impure BaCl2 * 2H2O weighed .7082 grams after it was dried at 200 degrees C for two hours to drive off H2O. Calculate the % water in the sample.
Solve Virial equation (the virial equation expanded in 1/ Vm )are expansions in p and 1/Vm,respectively
The electron in a hydrogen atom falls from an excited energy level to the ground state in two steps, causing the emission of photons with wavelengths of 2624 nm and 97.2 nm, respectively.
Calculate the pH of the solution at that point. (d) Calculate the pH of the solution after 20.0 ml of NaOH are added. (e) How many milliliters of NaOH are needed to reach the second equivalence point? Calculate the pH of the solution at that point..
If the freezing point constant for water is 1.86 ºC/m and assuming ideal conditions, determine the freezing point of a 0.0100 m aqueous solution of Na2SO4.
A gas occupies a volume of 480 mL at 127 degrees celsius and 148 mmHg. What mathematical expresssion will yield the correct volume at 177 degrees celsius and 400mgHg?
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