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While backpacking in the wilderness backpackers often boil water to sterilize it for drinking. Assume you are planning and need to boil 30 L of water for your group. Explain what volume of the fuel should you bring? Presume the following the fuel has an average formula of C7H16; 15% of the heat generated from combustion goes to heat the water (the rest is lost to the surroundings), the density of the fuel is .78g/ml, the initial temperature of the water is 25 degrees C; the standard enthalpy of formation of C7H16 is -224.24kJ/mole.
A bottle of nail polish remover contains 182 mL of acetone, how much heat would be released by its complete combustion? The density of acetone is 0.788mL.
How many grams of Cr can be produced by the reaction of 44.1 g of Cr2O3 with 35.0 g of Al according to the following chemical equation. 2Al + Cr2O3 ? Al2O3 + 2Cr
A 1-L flask is filled with 1.20g of argon at 25C . A sample of ethane vapor is added to the same flask until the total pressure is 1.15 atm. A) What is the partial pressure of argon, P Ar , in the flask
What is the total number of compounds, stereoisomers included, designated by the general name dichlorocyclopentane
How many milliliters of an aqueous solution of 0.180 M manganese(II) bromide is needed to obtain 12.8 grams of the salt ?
What is the pH of the final solution mixture? KA1=6.2x10^7 KA2=4.4x-^-11
How much rations must the hiker consume to avoid a reduction in body temperature of 4.0 K as a result of heat loss? Assume the heat capacity of the body equals that of water and that the hiker weighs 55 kg. State any additional assumptions.
The total molarity of acid and conjugate base in this buffer is 0.100 . A student adds 6.60 of a 0.340 solution to the beaker. How much will the pH change? The of acetic acid is 4.760. Express your answer numerically to two decimal places. Use a m..
Ethanol can be prepared from the fermentation of crops and has been used as a fuel additive to gasoline. Explain what is the balanced equation
A beaker of salt water has some solid NaCl at the bottom. What type of solution is in the beaker
could the separation in this experiment have been done in a different order? for example if mixture were first
What temperature is required to contain gas in a 525 mL flask at 1.23 atm if it originally occupied 555 mL at 755mmHg and 18 degrees celcius
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