Answer any or all that you can! Thanks so much!A 210g aluminum engine part at an initial temperature of 2.00°C absorbs 84.1 kJ of heatWhat is the final temperature of the part (c of Al 0.900 J/g·K)?A 0.1141 g sample of solid magnesium is burned in a constant-volume bomb calorimeter that has a heat capacity of 1769 J/°CThe calorimeter contains exactly 281 g of water, and the temperature increases by 1.126°CCalculate the heat given off by the burning Mg, in kJ/g and in kJ/mol.
Get a bucket and use water and the color you want to dye the yarn out it in there and let it sit and then let it air dry
Cotton does not shrink, like wool doesYes, you need a fiber reactive dyeHowever, please bear in mind that stripping the current color out of your yarn involves much more work, and doesn't work well with cotton, so that whatever you overdye it with for a color will be affected by the current color of the yarnDepending on what shade of browns you have they will come out darker and somewhat browner than the color you use.
A 210g aluminum engine part at an initial temperature of 2.00°C absorbs 84.1 kJ of heatWhat is the final temperature of the part (c of Al 0.900 J/g·K)? dH m C dT 84,100 Joules (210grams)(0.900 J/g-C)(dT) dT 444.974 C dT 445 Celsius (rounded to 3 sig figs) temp was 2, +445 447C your answer is 447C heat to the calorimeter: dH C dT dH (1769 J/°C) (1.126°C) dH 1991.9 Joules heat to the water: dH m C dT dH (281g)(4.184 J/g-C)(1.126C) dH 1323.8 Joules total Joules 3315.7 Joules lost by the reaction Calculate the heat given off by the burning Mg, in kJ/g 3315.7 J / 0.1141 grams 29,060 Joules /gram your first answer rounded to 3 sig figs, (since the 281 g of water had only 3 sig figs showing), is 29.1 kJ/gram of Mg is given off (i.edH -29.1 kJ/gram) Calculate the heat given off by the burning Mg, in kJ/mol (29,060 Joules /gram) (24.305 g/mol Mg) 706,303 Joules/mol your answer rounded to 3 sig figs is 706 kJ/mole of Mg is given off, (i.edH -706 kJ/mole)
