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A pesticide is any substance or mixture of substances intended for preventing and/or destroying plant pathogens. Nitromethane, CH3NO2, is a simple organic compound used as a reactant in organic synthesis in the manufacture of numerous substances, such as pesticides. The bonds illustrated below were observed in its IR spectrum.
a) Nitromethane will absorb 240nm light. Assuming that each nitromethane molecule absorbs 1 photon, how many molecules would it take to absorb 1 kJ of light at 240nm?
chromium metal can be produced from the high temperature reaction of cr2o3 with silicon by the following reactioncr2o3s
A 28.0-g sample of water at 250. K is mixed with 51.0 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
The thermal decomposition of 30.9g of CaCO3 produced 12.4g calcium and 3.71g carbon. Calculate the mass of oxygen produced in this reaction.
What volume of 16M HNO3 will be needed to prepare 250mL of 0.50 M HNO3
PCl5 + 4H2O > 5HCl +H3PO4. How many total moles of acid are formed when starting with 4.5 g of PCl5 and excess H2O.
The vapor pressure of water at 20°C is 17.5 mmHg. What is the vapor pressure of water over a solution prepared from 2.00 × 102 g of sucrose (C12H22O11, molar mass = 342 g/mol) and 3.50 × 102 g water? 1. 0.51 mmHg 2. 16.0 mmHg 3. 17.0 mmHg 4. 18.0 ..
Oxygen gas is commonly sold in 45.5 L steel containers at a pressure of 131 atm . What volume (in liters) would the gas occupy at a pressure of 1.06 atm if its temperature remained unchanged
What is the predominant intermolecular force in the following: aspartic acid, stearic acid, & glucose
Atmospheric pressure decreases as altitude increases. In other words, there is more air pushing down on you at sea level, and there is less air pressure pushing down on you when you are on a mountain.
When a neutralization reaction was carried out using 100 ml of .7890 NH3 water and 100 ml of .7940M acetic acid change in temperature was found to be 4.76 degress C. Specific heat of reaction mixture was 4.104 J g-1 K-1 and density was 1.03 g mL-1..
Which of the following materials will react with an acid to produce a gas. A) NaOH(aq) B) Na2CO3(aq) C) both (a) and (b) D) neither (a) nor (b) Which of the following materials will react with an acid to produce a gas
a 0.456 gram sample of an unknown mono protic acid lets call it hz was dissolved in some water you pick the amount.
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