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1.25g sample of a benzoic acid with a heat capacity of 25.0kJ/gwas burned in a bomb calorimeter and the temperature of thecalorimeter increased from 25.12 to 27.27 °C.a) Calculate the heat capacity of the calorimeter
in a coffee cup calorimeter 50.0 ml of 1.0 m naoh and 50 ml of 1.0 m hcl are mixed. both solutions are originally at
question a gas sample is heated from -20.0oc to 57.0oc and the volume increased from 2.00l to 4.50l. if the initial
Calculate the number of moles of an ideal gas if it has a pressure of 1.21 atm, a volume of 1.68 L, and a temperature of 217 oC. Use R = 0.0821 L-atm/mol-K for the value of the gas constant
suppose a 5.00 L sample of diatomic oxygen at a given temperature and preesure contains 1.08x10^23 molecules. How many molecules would be contained in 5.00L of hydrogen?
If a pipette was incorrectly calibrated so that it transfers 5% too much solution, would the density you calculated for the liquid tend to be larger or smaller then the correct value. explain.
Two hydrogen atoms interact to form a hydrogen molecule. Classify the following statements that describe the stages of bond formation in a hydrogen molecule according to the predominant force existing between the two hydrogen atoms.
What monatomic ions do sulfur (Z = 16) and aluminum (Z = 13) form. using the format [Cu]+ for Cu+ and [Cu]2+ for Cu2+.)
calculate the final pressure and the number of moles of H2 in each flask
The average concentration of bromide ion in sea water is 65 mg of bromide per kg of sea water. What is the bromide molarity if the density of seawater is 1.025 g/ml
the meta and para forms of phenylene diamine are used in the production of Kevlar and Nomex, respectively. Why is a corresponding material with similar properties not made from ortho-phynelene diamine
What is the pH at the point during a titration when 30 mL of 0.200 M HCl has been added to 31 mL of 0.0500 M NH3 solution? HCl is strong acid, Kb = 1.8 × 10-5 for NH3.Answer in units of pH.
The peregrine falcon has been measured as traveling up to 350 in a dive. If this falcon could fly to the Moon at this speed, how many seconds would it take
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