Home
Class 11
CHEMISTRY
A typical polyethylene grocery bag weigh...

A typical polyethylene grocery bag weighs 12.4g. How many metric tons of `CO_(2)` would be released into the atmosphere if the 102 billion bags used in one year in Kota were bured ?
[1 metric ton = 1000Kg]

A

`4.52 xx 10^(4)`

B

`1.99 x 10^(6)`

C

`3.98 xx 10^(6)`

D

`3.98 xx 10^(9)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MOLE CONCEPT, STOICHIOMETRY & CONCENTRATION TERMS

    GRB PUBLICATION|Exercise Percentage yield and percentage purity|18 Videos

  • MOLE CONCEPT, STOICHIOMETRY & CONCENTRATION TERMS

    GRB PUBLICATION|Exercise Sequential and Parallel Reactions|17 Videos

  • MOLE CONCEPT, STOICHIOMETRY & CONCENTRATION TERMS

    GRB PUBLICATION|Exercise Density|36 Videos

  • ISOMERISM

    GRB PUBLICATION|Exercise SUBJECTIVE TYPE|67 Videos

  • NOMENCLATURE AND CLASSIFICATION

    GRB PUBLICATION|Exercise Subjective Type|24 Videos

Similar Questions

Explore conceptually related problems

A typical polyethylene bag froma grocery store weighs 12.4g . How many molecules of ethylene, C_(2)H_(4) , must be polymerized to make such a bag?

Several short-lived radioactive species have been used to determine the age of wood or animal fossils. One of the most intresting substance is ""_(6)C""^(14) (half-life fossils, etc.). Carbon-14 is produced by the bombardment of nitrogen atoms present in the upper atmosphere with neutrons (from cosmic rays). ""_(7)N""^(14)+""_(0)n""^(1)to""_(6)C""^(14)+""_(1)H""_(1) Thus carbon-14 is oxidised, to CO""_(2) and eventually lingested by land animals. The death of plants or animals put an end to the intake of C""_(14) from the atmosphere. After this the amount of C""_(14) in the dead tissues starts decreasing due to its disintegration as per the following reaction : ""_(6)C""^(14)to""_(7)N""^(14)+""_(-1)beta""^(0) The C""^(14) isotope enters the biosphjere when carbon dioxide is taken up in plant photosynthesis. Plants are eaten by animals, which exhale C""^(14) as CO""_(2) . Eventually, C""^(14) participates in many aspects of carbon cycle. The C""^(14) lost by radioactive decay-replenishment process, a dynamic rquillibrium is established whereby the ratio of C""^(14) to C""^(12) remains constant in living matter. But when an individual plant or an animal dies, the C""^(14) isotpe inn it is no longer replenished, so the ratio decreases as C""^(14) decays. So, ther number C""^(14) nuclei after time t (after the death of living matter) would be less than in a livingthe following formula, t""_(1//2)=0.693 /? The intensity of the cosmic rays have remain the same for 30,000 years. But since some years changes in this are observed due to excessive burning of fossil fuel and nuclear test? Why do we use the carbon dating to calculate the age of the fossil?

Read the given passage carefully and answer the questions that follow. The Chinese government imposed limits on plastic waste imports – which were largely recycled into new products – because of growing awareness that some plastic waste contains toxic elements, therefore worsening China’s already serious pollution problems. According to Japanese government statistics, 510,000 tons of plastic waste was shipped to China every year before the restrictions were imposed. The figure has fallen to a mere 30,000 tons in the first five months of this year. China’s rules on plastic imports are expected to be tightened again in December, with a ban on factory debris. Meanwhile, Thailand – a large receiver of Japan’s waste metals – is also preparing import restrictions of plastic trash over similar environmental concerns. However, Japan is in no position to suddenly expand its capacity to recycle plastics, and a lot of the waste ends up at landfills or incinerators. Only 23% of the waste plastic produced by Japan in 2016 was turned into recycled plastic or used in fibre materials. Japanese waste management firms do not have the specialist equipment to recycle these plastics, and consequently many no longer accept such shipments because they have nowhere to store it. The ban caused turmoil in Japan as the government scrambled to find alternative avenues to recycle the nation’s plastic waste. Japan’s Reduce-Reuse-Recycle (3Rs) policy — while incredibly successful at promoting recycling in Japan — caused a decline in the domestic plastic recycling business. And despite high levels of participation in Japan’s recycling initiatives, efforts to reduce the use of plastic products in the country are failing. But while China’s waste ban may seem like a major headache, it also presents an opportunity for the Japanese government to revise its policies to the benefit of its citizens, businesses, and oceans. Japan is already a leading nation in its recycling efforts. It can now build on this strong foundation by taking three key actions. First, Japan should introduce regulations on the use of plastic products by prohibiting the sale — or charging a fee — for single-use plastics such as bags, cups and drinking straws. In 2002 Ireland became the first country to introduce a plastic bag tax, leading to a 90 per cent drop in use equaling a reduction of more than 1 billion bags. The tax collected was funnelled into a green fund to support environmental projects. Rwanda also introduced a ban on the sale, manufacture, use, and import of plastic bags in 2008. The ban led to cleaner cities with less trash, less environmental damage caused by plastic waste and increased tourism. Second, Japan should establish specific targets for business and industry to redesign, remanufacture, substitute and/or phase out plastic products. Given its ongoing preparation for the 2020 Tokyo Olympic Games, industry sectors have been called on to reduce excessive packaging for all products related to the event. Biodegradable alternatives are being considered, drawing on lessons learned from the 2016 Olympic Games in Rio de Janeiro, where plastic waste was effectively limited. Third, Japan should create a campaign to educate its consumers — and its businesses — on how to adopt eco-friendly waste practices. China’s ban on plastic imports is a much-needed wake-up call to reconsider our production, use and disposal of plastic products. Japan has the opportunity to stop looking for the next “easy solution” and instead adopt solid resource management principles to help stem the rising tide of plastic. How has China’s plastic waste ban left Japan to deal with mountains of trash ?

Read the given passage carefully and answer the questions that follow. The Chinese government imposed limits on plastic waste imports – which were largely recycled into new products – because of growing awareness that some plastic waste contains toxic elements, therefore worsening China’s already serious pollution problems. According to Japanese government statistics, 510,000 tons of plastic waste was shipped to China every year before the restrictions were imposed. The figure has fallen to a mere 30,000 tons in the first five months of this year. China’s rules on plastic imports are expected to be tightened again in December, with a ban on factory debris. Meanwhile, Thailand – a large receiver of Japan’s waste metals – is also preparing import restrictions of plastic trash over similar environmental concerns. However, Japan is in no position to suddenly expand its capacity to recycle plastics, and a lot of the waste ends up at landfills or incinerators. Only 23% of the waste plastic produced by Japan in 2016 was turned into recycled plastic or used in fibre materials. Japanese waste management firms do not have the specialist equipment to recycle these plastics, and consequently many no longer accept such shipments because they have nowhere to store it. The ban caused turmoil in Japan as the government scrambled to find alternative avenues to recycle the nation’s plastic waste. Japan’s Reduce-Reuse-Recycle (3Rs) policy — while incredibly successful at promoting recycling in Japan — caused a decline in the domestic plastic recycling business. And despite high levels of participation in Japan’s recycling initiatives, efforts to reduce the use of plastic products in the country are failing. But while China’s waste ban may seem like a major headache, it also presents an opportunity for the Japanese government to revise its policies to the benefit of its citizens, businesses, and oceans. Japan is already a leading nation in its recycling efforts. It can now build on this strong foundation by taking three key actions. First, Japan should introduce regulations on the use of plastic products by prohibiting the sale — or charging a fee — for single-use plastics such as bags, cups and drinking straws. In 2002 Ireland became the first country to introduce a plastic bag tax, leading to a 90 per cent drop in use equaling a reduction of more than 1 billion bags. The tax collected was funnelled into a green fund to support environmental projects. Rwanda also introduced a ban on the sale, manufacture, use, and import of plastic bags in 2008. The ban led to cleaner cities with less trash, less environmental damage caused by plastic waste and increased tourism. Second, Japan should establish specific targets for business and industry to redesign, remanufacture, substitute and/or phase out plastic products. Given its ongoing preparation for the 2020 Tokyo Olympic Games, industry sectors have been called on to reduce excessive packaging for all products related to the event. Biodegradable alternatives are being considered, drawing on lessons learned from the 2016 Olympic Games in Rio de Janeiro, where plastic waste was effectively limited. Third, Japan should create a campaign to educate its consumers — and its businesses — on how to adopt eco-friendly waste practices. China’s ban on plastic imports is a much-needed wake-up call to reconsider our production, use and disposal of plastic products. Japan has the opportunity to stop looking for the next “easy solution” and instead adopt solid resource management principles to help stem the rising tide of plastic. Which of the following is not a way through which Japan can introduce regulations on the use of plastic products?

You inhale about 0.5 liter of air in each breath and breath once in every five seconds. Air has about 1% argon. Mass of each air particle can be assumed to be nearly 5 xx 10^(-26) kg . Atmosphere can be assumed to be around 20 km thick having a uniform density of 1.2 kg m^(-3) . Radius of the earth is R = 6.4 xx 10^(6) m . Assume that when a person breathes, half of the argon atoms in each breath have never been in that person’s lungs before. Argon atoms remain in atmosphere for long-long time without reacting with any other substance. Given : one year = 3.2 xx 10^(7)s (a) Estimate the number of argon atoms that passed through Newton’s lungs in his 84 years of life. (b) Estimate the total number of argon atoms in the Earth’s atmosphere. (c) Assume that the argon atoms breathed by Newton is now mixed uniformly through the atmosphere, estimate the number of argon atoms in each of your breath that were once in Newton’s lungs.

Direction : Resistive force proportional to object velocity At low speeds, the resistive force acting on an object that is moving a viscous medium is effectively modeleld as being proportional to the object velocity. The mathematical representation of the resistive force can be expressed as R = -bv Where v is the velocity of the object and b is a positive constant that depends on the properties of the medium and on the shape and dimensions of the object. The negative sign represents the fact that the resistance froce is opposite to the velocity. Consider a sphere of mass m released frm rest in a liquid. Assuming that the only forces acting on the spheres are the resistive froce R and the weight mg, we can describe its motion using Newton's second law. though the buoyant force is also acting on the submerged object the force is constant and effect of this force be modeled by changing the apparent weight of the sphere by a constant froce, so we can ignore it here. Thus mg - bv = m (dv)/(dt) rArr (dv)/(dt) = g - (b)/(m) v Solving the equation v = (mg)/(b) (1- e^(-bt//m)) where e=2.71 is the base of the natural logarithm The acceleration becomes zero when the increasing resistive force eventually the weight. At this point, the object reaches its terminals speed v_(1) and then on it continues to move with zero acceleration mg - b_(T) =0 rArr m_(T) = (mg)/(b) Hence v = v_(T) (1-e^((vt)/(m))) In an experimental set-up four objects I,II,III,IV were released in same liquid. Using the data collected for the subsequent motions value of constant b were calculated. Respective data are shown in table. {:("Object",I,II,II,IV),("Mass (in kg.)",1,2,3,4),(underset("in (N-s)/m")("Constant b"),3.7,1.4,1.4,2.8):} Which object would first acquire half of their respective terminal speed in minimum time from start of the motion of all were released simultaneously ?

Direction : Resistive force proportional to object velocity At low speeds, the resistive force acting on an object that is moving a viscous medium is effectively modeleld as being proportional to the object velocity. The mathematical representation of the resistive force can be expressed as R = -bv Where v is the velocity of the object and b is a positive constant that depends onthe properties of the medium and on the shape and dimensions of the object. The negative sign represents the fact that the resistance froce is opposite to the velocity. Consider a sphere of mass m released frm rest in a liquid. Assuming that the only forces acting on the spheres are the resistive froce R and the weight mg, we can describe its motion using Newton's second law. though the buoyant force is also acting on the submerged object the force is constant and effect of this force be modeled by changing the apparent weight of the sphere by a constant froce, so we can ignore it here. Thus mg - bv = m (dv)/(dt) rArr (dv)/(dt) = g - (b)/(m) v Solving the equation v = (mg)/(b) (1- e^(-bt//m)) where e=2.71 is the base of the natural logarithm The acceleration becomes zero when the increasing resistive force eventually the weight. At this point, the object reaches its terminals speed v_(1) and then on it continues to move with zero acceleration mg - b_(T) =0 rArr m_(T) = (mg)/(b) Hence v = v_(T) (1-e^((vt)/(m))) In an experimental set-up four objects I,II,III,IV were released in same liquid. Using the data collected for the subsequent motions value of constant b were calculated. Respective data are shown in table. {:("Object",I,II,II,IV),("Mass (in kg.)",1,2,3,4),(underset("in (N-s)/m")("Constant b"),3.7,1.4,1.4,2.8):} A small sphere of mass 2.00 g is released from rest in a large vessel filled with oil. The sphere approaches a terminal speed of 10.00 cm/s. Time required to achieve speed 6.32 cm/s from start of the motion is (Take g = 10.00 m//s^(2) ) :

GRB PUBLICATION-MOLE CONCEPT, STOICHIOMETRY & CONCENTRATION TERMS-Stoichiometry
  1. What will be the percentage loss in mass when NaHCO(3) is heated at 30...

    Text Solution

    |

  2. Tungsten metal , W is used to make incandescent bulb filaments. The me...

    Text Solution

    |

  3. A typical polyethylene grocery bag weighs 12.4g. How many metric tons ...

    Text Solution

    |

  4. 20 gmof a mixture of NaCl and NaOH exactly requires 7.3gm HCL for comp...

    Text Solution

    |

  5. Three substances A,B and C can react to form D and E as shown : 2A +...

    Text Solution

    |

  6. One mole of potassium chlorate (KClO(3)) is thernally decomposed and e...

    Text Solution

    |

  7. How many moles of potassium chlorate need to be heated to produce 11.3...

    Text Solution

    |

  8. When x gm carbon is burnt with y gm oxygen in a closed vessel, no resi...

    Text Solution

    |

  9. If 1 1/2 moles of oxygen combine with Al to form Al(2)O(3) the weight ...

    Text Solution

    |

  10. Consider the following statements: (1) If all the reactants are not ...

    Text Solution

    |

  11. In the reaction 4A + 2B + 3C rArr A(4)B(2)C(3) what will be the number...

    Text Solution

    |

  12. 3 gm mixture of SiO(2) and Fe(2)O(3) on very strong heating leaves a r...

    Text Solution

    |

  13. A 1.50gm samples of type metal (an alloy of S(n), Pb, Cu and Sb) is di...

    Text Solution

    |

  14. What mass of solid ammonium carbonate H(2)NCOONH(4)(s) rArr CO(2)(g) +...

    Text Solution

    |

  15. 40 gm of a carbonate of an alkali metal or alkaline earth metal contai...

    Text Solution

    |

  16. Identify in which of the following case can the average molecular mass...

    Text Solution

    |

  17. Calcualte the mass % of Na(2)CO(3) in a mixture having mass 206 gm whi...

    Text Solution

    |

  18. Two elements A and B combine to form compound X and Y. For the fix mas...

    Text Solution

    |

  19. 1.0 mole of Fe reacts completely with 0.65 mole of O(2) to give a mixt...

    Text Solution

    |

  20. The molar ration of Fe^(++) to Fe^(+++) in a mixture of FeSO(4) and Fe...

    Text Solution

    |