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sattari [20]
2 years ago
6

A student is preparing 500 mL of a 0.1M solution of magnesium chloride to test the

Chemistry
1 answer:
Dafna11 [192]2 years ago
8 0
4 I think I’m not 100
sure
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Given that the nucleophilic substitution reaction used 5.0 mL of t-pentyl alcohol and 12.0 mL of conc. hydrochloric acid to prod
Vladimir [108]

Answer:

4.90 g

Explanation:

Given that:

volume of t-pentyl alcohol = 5 mL

the standard density of t-pentyl alcohol = 0.805 g/mL

Recall that:

density = mass(in wt) /volume

mass = density × volume

mass = 0.805 g/mL × 5 mL

mass = 4.03 g

Volume of HCl used = 12 mL

The reaction for this equation is shown in the image attached below.

From the reaction,

88.15 g of t-pentyl alcohol reacts with concentrated HCl to yield 106.59 g pf t-pentyl chloride.

4.03 g of t-pentyl alcohol forms,

= \dfrac{106.59 \ g \times 4.03 \ g}{88.15 \ g} of t-pentyl chloride.

Therefore,

Theoretical yield of t-pentyl chloride = 4.90 g

8 0
3 years ago
Does the bowling ball have more potential energy or kinetic energy just before it hits the ground? Why?
AnnZ [28]

Answer:

Equal

Explanation:

When the bowling ball is first dropped, it has a maximum potential energy but minimum kinetic energy.  The height is max, so the potential energy will be greatest.  Velocity is 0, so kinetic energy will be 0.

6 0
3 years ago
Find the number of grams in 16.95 mol hydrogen peroxide (H2O2). Round your
Feliz [49]

Answer: There are 576.46 number of grams present in 16.95 mol hydrogen peroxide (H_{2}O_{2}).

Explanation:

Number of moles is defined as the mass of substance divided by its molar mass.

The molar mass of H_{2}O_{2} is 34.01 g/mol. Hence, mass of hydrogen peroxide present in 16.95 moles is calculated as follows.

Moles = \frac{mass}{molarmass}\\16.95 mol = \frac{mass}{34.01 g/mol}\\mass = 576.46 g

Thus, we can conclude that there are 576.46 number of grams present in 16.95 mol hydrogen peroxide (H_{2}O_{2}).

3 0
3 years ago
Sulfur is element 16. How many dots would you have to show in the electron dot diagram for sulfur?
I am Lyosha [343]
6 because it is in the sixteenth column
3 0
3 years ago
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Discuss how to separate a mixture of iron filings salt sand and wood chips
SSSSS [86.1K]
The iron filings<span> can be separated with a magnet. The </span>wood chips<span> can be separated by adding water to the water and picking the floating </span>wood chips<span>from the top. The </span>sand<span> can be separated by pouring the water/</span>sand/salt<span>mixture through a coffee filter or a paper towel</span>
6 0
3 years ago
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