Question

A 76.0076.00 pound flask of mercury costs $132.50.$132.50. The density of mercury is 13.534 g/cm3.13.534 g/cm3.

Find the price of one cubic inch of mercury by calculating intermediate values.

What is the price of one pound of mercury?

$

What is the price of 1 g of mercury?

$

What is the price of 1 cm³ of mercury?

$

What is the price of 1 in³ of mercury?

$

It takes 2.500 in32.500 in3 of mercury to make one manometer. Find the price of the mercury used to make 2121 manometers by first calculating the cost of mercury for one manometer.

What is the price of mercury used to make one manometer?

$

What is the price of mercury used to make 21 manometers?21 manometers?

$

Answer 1

1.

price of 1 pound mercury is

= 1 pound

= 1.743 $.

2.

1 pound = 453.59 g.

then, price of 1 g mercury

= 1 g

= 0.003841 $

3.

density of mercury = 13.534 g/cm³

then price of 1 cm³ mercury

= 1 cm³    

= 0.05198 $.

4.

now, 1 inch = 2.54 cm

then, 1 inch³ = (2.54)³ cm³

= 16.39 cm³

then , price of 1 inch³

= 1 inch³

= 0.8520 $.

5.

volume of one manometer = 2.50 inch³

then, price of mercury to make one manometer

= 2.50 inch³  

= 2.130 $.

6.

now, price of mercury to make 21 manometers

= 21 manometer

= 44.72 $.