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At a pressure of 1 atmosphere and a temperature of 25 °C, 500 cm3 of the gas HX has a mass of 0.400 g. Calculate the value of the relative atomic mass of X and hence identify element X. (You should assume that 1 mole of gas occupies 24.5 dm3, and 1 dm3 = 1000 cm3. Assume the relative atomic mass of hydrogen to be 1.0.)
Lorna is better in a game of rounders. She hits the ball. The bat puts a force on the ball. Using the information given above, write down three effects that the force has on the ball. Whats the answer I was off at school when they did that and the teacher still makes me do the homework :(
1kg water closed system -isothermal heat intake process initial pressure 15bar dryness 25%. Then expansion to 1bar and 84.9 dryness. What is heat input and work done at isothermal stage? What is heat intake at beginning of heat rejection process?
hi people im stuck on a pece of p6/ homework. the sheet says write the following expressions, using algebraic conventions,
a) 6 less than x b) 3 more than y c) z more than 4 D)f less than 7 e) x multipied by y f) 7 multiplied by y G)26 divided by z H) h divided by 5 i) 5 multiplied by y j) 12 divided by x k) 8 subtrackted by x l) x subtracted by 8.
please help (mabie do the ancers for me? )
thanks very much :D