A deep-sea diver must descend and ascend in short steps to equalize pressure on his body.
Answer:
0.1 M is the answer and I have explained it in the attachment below.
Hope this helped!
Answer:
technetium, atomic number 43; promethium, number 61; astatine, number 85; francium, number 87; neptunium, number 93; and plutonium, number 94.
Explanation:
Hey there!
Volume in mL :
1.25 * 1000 => 1250 mL
Density = 0.921 g/mL
Therefore:
Mass = density * volume
Mass = 0.921 * 1250
Mass = 1151.25 g
Answer:
mass of benzene in the lungs = 28.8 g of benzene
Explanation:
Volume of air breathed per hour = 500 mL * 12 * 60 = 360000 ml = 360 Litres of air
In 8 hours, volume of breathed air = 360 L * 8 = 2880 Litres of air
Concentration of benzene in air = 10 ppm
Note: 1 ppm = 1 mg per liter (mg/L)
10 ppm = 10 mg/L
Therefore, mass of benzene in the lungs in an 8-hour shift = 10 mg/L * 2880 L
mass of benzene in the lungs = 28800 mg
Converting to grams = 28800/1000
mass of benzene in the lungs = 28.8 g of benzene
