Calculate the amount of heat needed to boil 56.7 g of ethanol (CH3CH2OH), beginning from a temperature of -41.4 °C. Be sure your answer has a unit symbol and the correct number of significant digits. D x10

Please don't provide handwritten solution ....

Nitesh

Complete the following table. Be sure each of your answer entries has the correct number of significant digits. energy content when eaten food 口0 cal kcal kJ a slice of cooked bacon 3.60 x 10 a small apple 125. a slice of apple 1.69 x 10

The temperature at which a fuel begins to burn is called the ignitiontemperature. The ignition temperature for #2 fuel oil is 700°F. Find the ignitiontemperature in degrees Celsius. Round the answer to the nearer tenth.

[Using heat of fusion or vaporization to find the heat needed to melt or boil a substance] Calculate the amount of heat needed to melt 14.1g of solid octane (C8H18) and bring it to a temperature of −25.7°C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol.

Perform the given calculation. You must round correctly and report the answer with the proper number of significant figures. 1.012×10−3 J/(0.012456 g)(298.3682−298.3567)K

km Calculate the kinetic energy of a 3.1 x 10" kg airplane moving at a speed of 0.28 Round your answer to 2 significant digits. J x10

114.0 mL of H2O at 20.32 oC  is heated  to 86.22 oC. How many kJ of heat did it gain from the environment?The specific heat, c, of water is 4.184 J/g·C .   Watch units! q = c * m * ΔT  1.00 g water = 1.00 mL put answer in box in regular non scientific notation with 1 digit past decimal

Calculate the kinetic energy of a 4.2 x 10^4 kg airplane moving at a speed of 155.ms Round your answer to 2 significant digits.