mr. weddle is going to put a new fence around his background for roscoe. If the width is 10.5 and the length is 13, how much fencing would he need

47

Step-by-step explanation:

to find perimeter use 2w+2l=p

2(10.5)+2(13)

  21        26

        47

1.7927 mL

Explanation:

The mass of solid taken = 4.75 g

This solid contains 21.6 wt% , thus,

Mass of = = 1.026 g

Molar mass of = 261.337 g/mol

The formula for the calculation of moles is shown below:

Thus,

Considering the reaction as:

1 moles of react with 1 mole of

Thus,

0.003926 mole of react with 0.003926 mole of

Moles of = 0.003926 mole

Also, considering:

Molarity = 2.19 M

So,

Volume = 0.0017927 L

Also, 1 L = 1000 mL

So, volume = 1.7927 mL