Explanation:
The dimensions of a standard backpack is 30cm x 30cm x 40cm
The mass of an average student is 70 kg
We know that, the density of gold is 19.3 g/cm³.
Let m be the mass of the backpack. So,
![\text{density}=\dfrac{\text{mass}}{\text{volume}}\\\\m=d\times V\\\\m=19.3\ g/cm^3\times (30\times 30\times 40)\ cm^3\\\\m=694800\ g\\\\\text{or}\\\\m=694.8\ kg\approx 700\ kg](https://tex.z-dn.net/?f=%5Ctext%7Bdensity%7D%3D%5Cdfrac%7B%5Ctext%7Bmass%7D%7D%7B%5Ctext%7Bvolume%7D%7D%5C%5C%5C%5Cm%3Dd%5Ctimes%20V%5C%5C%5C%5Cm%3D19.3%5C%20g%2Fcm%5E3%5Ctimes%20%2830%5Ctimes%2030%5Ctimes%2040%29%5C%20cm%5E3%5C%5C%5C%5Cm%3D694800%5C%20g%5C%5C%5C%5C%5Ctext%7Bor%7D%5C%5C%5C%5Cm%3D694.8%5C%20kg%5Capprox%20700%5C%20kg)
An average student has a mass of 70 kg. If we compare the mass of student and mass of backpack, we find that the backpack is 10 times of the mass of the student.
Answer:
The empirical formula simply states the ratios of the elements that make up the molecule, while molecular formulas specify the amounts of each element exactly, not just giving the ratio. Let's take ethane (C2H6) as an example.
Answer:
The cation Fe3+ is formed when a. an atom of iron loses two electrons.
Explanation:
Answer:
Mercury fulminate is very sensitive to shock, friction, and sparks. ... put mercury fulminate into blasting caps for detonating dynamite.
Explanation:
Given in question ;
volume of ideal gas (v1) = 1.62 L
pressure on ideal gas (p1) = 1atm
volume of sample (v2) = to find
pressure of sample (p2) = 85 atm
As the Temperature is constant. Thus, we apply the Boyle's Law ; P₁V₁ = P₂V₂
To find V₂.
P₁V₁ = P₂V₂
(1 atm)(1.62 L) = (85 atm)(V₂)
V₂ = 1.62/85
V₂ = 0.019 L
Thus the volume of sample in ocean is 0.019 L.
What is Boyle's Law ?
Boyle’s law is a gas law which states that the pressure exerted by a gas (of a given mass, kept at a constant temperature) is inversely proportional to the volume occupied by it. In other words, the pressure and volume of a gas are inversely proportional to each other as long as the temperature and the quantity of gas are kept constant. Boyle’s law was put forward by the Anglo-Irish chemist Robert Boyle in the year 1662.
Learn more about Boyle's law here ; brainly.com/question/1437490?referrer=searchResults
#SPJ4