For each trial, enter the amount of heat gained by the chemical system of ammonium nitrate, qrxn. the specific heat of water is 4.184 j/goc. report your answer using 4 digits.
the information given is: trial # tiwater tf masswater #1: 21.2 10.8 24.990 #2: 20.8 9.50 25.000 #3: 20.9 9.20 25.010 the equation needed is qrxn = -(qwater+qcalorimeter) i found the qwater, but i need finding the qcalorimeter so i can determine the qrxn. !

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397

Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization.a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution.part bcalculate the percent ionization of ha in a 0.010 m solution

Which samples do the atoms have the least kinetic energy