The following information was obtained when carrying out an experiment to determine the enthalpy (δh) of neutralization reaction between hcl and naoh. 100 ml of 2.00 m hcl solution was added to 95.00 ml of 2.00 m solution of naoh. the final temperature reached was 35.40 °c and the initial temperature at mixing was 22.15 °c. the density of the mixture was 1.04 g/ml and its specific heat capacity was 3.89 j/g-°c. how many moles of hcl were used to neutralize the naoh in the reaction?

How do scientists think that gravity affected the formation of our solar system?

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.