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Why are active on-duty firefighters likely to experience the adverse health effects from inhaling 300 ppm of carbon monoxide faster than nonactive off-duty firefighters who inhale the same concentration of the same substance? Explain your answer using the chemicals/process involved.
in an experiment 6.00 g of mgs was reacted completely with o2g to form mgos and 148.5 kj of heat was evolved. what is
How much heat (in kJ) is required to warm 13.0 g of ice, initially at -110.0?C? The heat capacity of ice is 2.09 J/g??C and that of steam is 2.01 J/gC
What is the physical interpretation of the three quantum numbers and what restrictions are placed on them
Describe in detail the manufacture of silicon crystals. Describe the process
A tank of oxygen holds 14.0L of oxygen (O2) at a pressure of 30.0atm . When the gas is released, it provides 230.L of oxygen. What is the pressure of this same gas at a volume of 230.L and constant temperature?
2500 kg/hr of a mixture containing equal parts by mass of benzene and toluene are distilled. The flow rate of the overhead product stream is 988 kg/hr , and the bottom stream contains 17.03 wt% benzene.
When ultraviolet radiation of wavelength 58.4nm from a helium lamp is directed on to a sample of krypton, electrons are ejected with a speed of 1.59E6 m/s. Calculate the ionization energy of krypton.
For which of the following would nitration (via Electrophilic aromatic substitution) occur in the ortho- and para- position?
Determine the mass of nitrogen gas produced and calculate the volume occupied by this mass of gas at room temperature of 23C.
Assume two chemical reactions are linked together in a means that the O2 produced in the first reaction goes on to react completely with Mg to form MgO in the second reaction.
Estimate the average rate of production (Using this rate) of oxygen over the same time period. Considering the given equation 2H 2 O 2 --> 2H 2 O+O 2 -H 2 O 2
1. how many molecules are in 10.35 mol of sodium phosphate?2. how many calcium ions are there in 0.625 mol of
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