Someone please help me with this chemistry homework :( It's three questions. 10) A balloon is filled with 0.93 L of gas at a pressure of 1.15 atm and a temperature of -22oC. What is the temperature, in oC, when the volume is 0.85 L and the pressure is 1.01 atm?

11) How many grams are in 563 mL of chlorine gas at STP?

12) What volume in mL will 0.0066 mol of hydrogen gas occupy at a pressure of 0.907 atm and a temperature of 9 oC?

you need to give more information

since electrons are negative the answer is neagtaive

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

ok whats the question if not i cannot you i need question and need a thing to answer