No. of moles of calcium chloride = molarity × volume of solution in L
No. of moles of calcium chloride = 2.5 ×0.5 = 1.25 mole
No. of moles of calcium chloride = mass of calcium chloride / molar mass of calcium chloride
1.25 mole = mass of calcium chloride / 110.98 g/mol
mass of calcium chloride = 1.25 ×110.98 = 139 g
Liquid silver is less dense than solid silver, so the solid silver would sink
Answer:
3-methylenehexane
Explanation:
In this case, we have <u>two clues</u>.
<u>1) The hydrogenation reaction</u>
<u>2) The ozonolysis reaction</u>
See figure 1.
With this in mind, lets analyze each clue. In the first reaction, we know that only 1 molecule of is added to the unknown molecule. This indicates that we only have <u>1 double bond</u> in the molecule. Now, the next question is <u>where is placed the double bond?</u>
To answer this question, we have to use the second clue. In the ozonolysis reaction, a double bond is broken and is replaced with a carbonyl group. If, <u>formaldehyde</u> is formed the double bond is formed with a <u>primary carbon</u>. The primary carbons in the structure (given in the first reaction: 3-methylhexane) are carbons 1, 6, and 7. So, the double bond can be placed between carbons:
a) 6 and 5
b) 7 and 3
c) 1 and 2
To decide which one is the position of the double bond we have to keep in mind the <u>second product</u> of the ozonolysis reaction a <u>ketone</u>. With this in mind, the carbon bonded to the <u>primary one</u> (deduced by the formaldehyde) it has to be a <u>tertiary carbon</u>. The only option that has a primary carbon bonded to tertiary carbon is <u>b)</u>. (See figure 2)
Finally, with this in mind the structure is <u>3-methylenehexane</u>. To be sure, we can <u>check the formula</u> for the compound, and the <u>reactions</u>. (See figure 3)
I hope it helps!
Answer:
using only two types of seeds, both from the same source, repeating the experiment indoors under growth lights, and measuring plant height the same way and at the same time for both groups
Explanation: