Chemistry, 24.08.2019 16:30 xelynncaldera
Questions 36 and 37 refer to the following: during a laboratory activity, a student places 25.0 ml of hcioaq) of unknown concentration into a flask. the student adds four drops of phenolphthalein to the solution in the flask. the solution is titrated with 0.150 m koh(aq) until the solution appears faint pink. the volume of koh(aq) added is 18.5 ml. 36) complete the equation below for the neutralization reaction that occurs during the given titration. koh (aq) hcl(aq)- 37o determine the concentration of the hci(aq) solution, using the given titration data.
Answers: 1
Chemistry, 20.06.2019 18:04
Can anyone (a-level) a student was analysing a carbonate compound, mco3, containing an unknown group 2 metal, m. the student carried out thermal decomposition on 0.730g of the carbonate and measured the volume of gas produced. mco3 (s) mo (s) + co2 (g) the student collected and measured 120cm3 of carbon dioxide. 1 mol of carbon dioxide occupies 24 000 cm3 under these conditions. calculate the molar mass of the group 2 carbonate and hence deduce the identity of the group 2 metal, m.
Answers: 3
Chemistry, 22.06.2019 16:10
Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)
Answers: 2
Chemistry, 23.06.2019 00:30
On the periodic table, elements are arranged by which of the following. a. mass numbers. b. increasing atomic number. c. alphabetical order. or d. density
Answers: 1
Questions 36 and 37 refer to the following: during a laboratory activity, a student places 25.0 ml...
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