when 2.0g of NaOH were dissolved in 53.0g water in a calorimeter at 24.0°c, the temperature of the solution went up to 33.7°c.a. is the solution exothermic? calorimeterb. calculate qH2Oc. find ΔH for the reaction as it occured in the calorimeter.d. find ΔH for the solution of 1.00g NaOH in watere. find ΔH for the […]
30 year old man is admitted to hospital in a state of reduced consciousness(Glasgow coma scale 9)with froth coming out of his mouth and laboured respiration. according to his family members he was found collapsed in his room 1 hour ago. He is otherwise healthy man taking no regular medications. a strong pungent garlic like […]
A metal sample weighing 45.2g and at a temperature of 100.0°c was placed in 38.6g of water in a calorimeter at 25.2°c. At equilibrium the temperature of the water and metal was 33.0°c.a. what was Δt for the water? b. what was Δt for the metal?c. taking the specific heat of water to be 4.18J/g°c, […]
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Assuming no change in the volume of the solution calculate the pH and concentrations of all species present?A 182.8 mL sample of 0.375 M acetic acid was allowed to react with 1.915 L of gaseous ammonia at 25 degrees C and a pressure of 665.2 mm HgAcetic Acid CH3CO2H Ka = 1.8×10^-5Ammonia NH3 Kb = […]
Glycerol, HOCH2CHOHCH2OH, is a non-volatile water soluble material. It’s density is 1.25g/ml. Predict the vapor pressure of a solution of 2.60×10^2ml of glycerol, in 375ml of water, at the normal boiling point of water.
Calculate the amount of 10.00% acetic acid you will need to add to 100.0 mL of your milk in order to bring the final acidity to 1.00% acetic acid.
1. Which of the following solutions could not function as a buffer? a. an aqueous mixture of HCl and NaCl. b. an aqueous mixture of HC2H3O2 and NaC2H3O2. c. an aqueous mixture of HF and NaF.
How to calculate standard deviation with 4 trials , for example 4 measurements ; 357.4, 339.6, 346.2, and 349.2?
This week, you will finalize your System Security Evaluation. Part 1 Update the System Security Evaluation document title page with the new date. Update the previously completed section based on the instructor’s feedback. Part 2 Identify and discuss how Federal regulations, such as HIPAA/HITECH have influenced or impacted your System Security Evaluation. Topics should include impacts […]
