The concentration of a substance is the quantity of solute present in a given quantity of solution.
Answer : cis-2-pentene
Explanation : The stereoisomers are the compound which differs only in the spatial arrangement of the atoms across the stereogenic centers.
There are mainly two forms of stereoisomers cis and trans. Cis-isomers are those where the two bulky or functional groups are arranged on the same side across the stereogenic center; whereas, in trans-isomers the two bulky groups or functional groups are arranged in the opposite sides of stereogenic center.
Answer:
Mass = 2.12 g
Explanation:
Given data:
Volume of KMnO₄ = 255 mL (255/1000 = 0.255 L)
Molarity = 0.0525 M
Mass in gram = ?
Solution:
First of all we will calculate the number of moles.
<em>Molarity = number of moles of solute / volume in litter</em>
0.0525 M = number of moles of solute / 0.255 L
Number of moles of solute = 0.0525 M ×0.255 L
Number of moles of solute = 0.0134 mol
Mass in gram:
<em>Number of moles = mass/ molar mass</em>
Mass = moles × molar mass
Mass = 0.0134 mol × 158.04 g/mol
Mass = 2.12 g
Answer:
The volume of an irregularly shaped solid can be determined from the volume of water it displaces. A graduated cylinder contains 19.9 mL of water. When a small piece of galena is added, it sinks and the volume increases to 24.5 mL
<h3>#15</h3>
What elements forms electron rich hydride?
- <em>Electron</em><em> </em><em>rich</em><em> </em><em>hydride</em><em> </em><em>are</em><em> </em><em>formed</em><em> </em><em>only</em><em> </em><em>when</em><em> </em><em>the</em><em> </em><em>elements</em><em> </em><em>from</em><em> </em><em>group</em><em> </em><em>15-17</em><em> </em><em>combine</em><em> </em><em>together</em><em> </em><em>to</em><em> </em><em>form</em><em> </em><em>compounds</em><em>.</em><em>.</em><em>.</em>
<h3>#16</h3>
Formula of Calgon is