balance caco3+HC(aq)--> CaCL2+co2+h2o(l) Answer the questions in order in the ex
ID: 530222 • Letter: B
Question
balance caco3+HC(aq)--> CaCL2+co2+h2o(l) Answer the questions in order in the exam book. You must return the exam paper. A compound copper and sulfur only was found to contain 79.8% copper. what is the empirical formula of the compound? Balance the equation below then calculate how many grams of carbon dioxide can be obtained by burning 4.00 g of carbon with 4.00 g of oxygen: C(s) + O_2(g) rightarrow CO_2 (g) H_2O(g) Balance each of the following equations: caCO_3(s) + HCI(aq) rightarrow CaCl_2(aq) + CO_2 + H_2O(l) BaCl_2(aq) + Na_2SO_4(aq) BaSO_4(s) Nacl(aq) Al(OH) + HNO_3(aq) rightarrow Al(NO_3)_3 + H_2O(l) Write a net balanced ionic equation for the reactions in Q.3 above. A 0.5035 g of potassium hydrogen phthalate (HC_8H_4O_4, a weak monoprotic acid) required 22.55 mL of a NaOH solution for titration to a phenolphthalein endpoint. What is the molarity of the NaOH solution? When 25.0 mL of 1.00 M HCI is mixed with exactly 25.0 mL of NaOH in a calorimeter, the temperature of the solution increased from 25.0 C to 27.55 degree C. If the specific heat of the solution is 4.18 J/(g. degree C), what is 4H for the reaction in k/mol. Take the total volume of the solution as 50.0 mL of density of the solution as 1.00 g/mL.Explanation / Answer
Ans
The reaction has misprinted reactants. It must be HCl instead of HC , as the product has chlorine atoms.
However the balanced reaction will be
CaCO3 + 2HCl ---> CaCl2 + CO2 + H2O
while balancing one should always check the number of atoms on each side , they should be equal .
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