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1. Amount of HNO3 in average volume of A used
2. Concentration of B in moldm3
3. Solubility of Na2Co3 in moldm3
4. Molar mass of Na2Co3 that will obtain evaporating 1dm3 of the solution to dryness by evaporating 2HNO3+NaCo _ 2NaNo3
what volume of 0.98 m phosphoric acid is required to completely neutralize 18.0ml of 2.15 solution of potassium hydroxide
What mass of C₆H₁₂O₆ (glucose) is needed to prepare 600.0 mL of a 0.789 M solution of glucose in water?
Gold (III) hydroxide is used for electroplating gold onto other metals. It can be made by the following reaction. 2KAuCla(aq) + 3NA2COs(aq) + 34,0 > 2AU(OH)s + 6NaCl(aq) + 2K Cliaq) + 3CO2%) To prepare a fresh supply of Au(OH), a chemist at an electroplating plant has mixed 20.00g of KAuCl, with 25.00g of Na,CO; (both dissolved in a large excess of water). What is the maximum mass of Au(OH), that can be formed? [Au= 197, Na= 23, O= 16, K =39, H= 1, Cl=35.5]
KClO3 + P4 = P4O10 + KCl
If there are 0.895 g of KClO3 and 0.995 of P4
a. Which is the limiting reactant
b. How much KCl is produced in the reaction?
C₆H₁₂O₆+6O₂→6CO₂+6H₂O+energy. Consider respiration, one of the most common chemical reactions on earth. What mass of carbon dioxide forms in the reaction of 25 grams of glucose with 40 grams of oxygen? Ar; C=12.0, H=1.0, O=16.0
How to collect the product from the immobilized enzymes, in vitro?
