Use the drop-down menus to name the following structures.
2 answers:
Structure 1: 2-Butyne
Parent chain contains 4 carbons and a triple bond. So, the parent name is Butyne. Position of triple bond is written 2, as triple bond starts at carbon 2.
Structure 2: <em>cis</em>-2-Pentene
Parent chain contains 5 carbons and a double bond. So, the parent name is Pentene. Position of double bond is written 2, as double bond starts at carbon 2. As both substituents are on same side of double bond, so cis depicts the stereo.
Structure 3: <em>trans</em>-3-Decene
Parent chain contains 10 carbons and a double bond. So, the parent name is Decene. Position of double bond is written 3, as double bond starts at carbon 3. As both substituents are on opposite side of double bond, so trans depicts the stereo.
Structure 3: 1-Hexyne
Parent chain contains 6 carbons and a triple bond. So, the parent name is Hexyne. Position of triple bond is written 1, as triple bond starts at carbon 1.
Parent chain contains 4 carbons and a triple bond. So, the parent name is Butyne. Position of triple bond is written 2, as triple bond starts at carbon 2.
Structure 2: <em>cis</em>-2-Pentene
Parent chain contains 5 carbons and a double bond. So, the parent name is Pentene. Position of double bond is written 2, as double bond starts at carbon 2. As both substituents are on same side of double bond, so cis depicts the stereo.
Structure 3: <em>trans</em>-3-Decene
Parent chain contains 10 carbons and a double bond. So, the parent name is Decene. Position of double bond is written 3, as double bond starts at carbon 3. As both substituents are on opposite side of double bond, so trans depicts the stereo.
Structure 3: 1-Hexyne
Parent chain contains 6 carbons and a triple bond. So, the parent name is Hexyne. Position of triple bond is written 1, as triple bond starts at carbon 1.
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Answer:
39.2 g
Explanation:
- 2Ni₂O₃(s) ⟶ 4Ni(s) + 3O₂(g)
First we <u>convert 55.3 grams of Ni₂O₃ into moles of Ni₂O₃</u>, using its<em> molar mass</em>:
- 55.3 g ÷ 165.39 g/mol = 0.334 mol Ni₂O₃
Then we <u>convert 0.334 moles of Ni₂O₃ into moles of Ni</u>, using the <em>stoichiometric coefficients of the balanced reaction</em>:
- 0.334 mol Ni₂O₃ *
= 0.668 mol Ni
Finally we <u>calculate how much do 0.668 Ni moles weigh</u>, using the<em> molar mass of Ni </em>:
- 0.668 mol Ni * 58.69 g/mol = 39.2 g