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Question- When a 5.00g of strontium is added to 100.0g of water at 25.0 Celsius in a constant pressure calorimeter, the reaction below occurs and the temperature of the water increases to 8`.4 Celsius. Assuming that the specific heat of the solution is 4.18J/g*c, and assuming that no heat is lost to the surroundings, determine the value of delta H (in kJ/ mol Sr) for the reaction.
Solve the above problem and provide steps with explanation
Calculate the molarity of chloride ions when HCl is added to Co(NO3)2 ? (this is the cobalt complex and chloride experiment)
The atomic weight of hydrogen is 1 and the atomic weight of oxygen is 16. To produce 72 grams of water how many grams of hydrogen and how many grams of oxygen do you use
Calculate the concentration of ions in the following solutions, [I] in AgI in AgI solution with [Ag+] = 9.6E-9 M Ksp=8.3E-17
What is the numerical value (ignore units) of the equilibrium constant for the following reaction
A 25.0 mL sample of river water was titrated with 0.0010 M Na2Cr2O7 and required 8.3 mL to reach the end-point. What is the chemical oxygen demand, in milligrams of O2 per liter, of the sample?
A sample of sulfur weighing 0.210g was dissolved in 17.8g carbon disulfide. (Kb= 2.340C/m ) If the boiling point elevation was 0.1070C, what is the formula of a sulfur molecule in this environment
Grignard reagents can act as both a nucleophile and a base. Consequently, what would you expect to happen if that during the preparation of the phenylmagnesium bromide Grignard reagent
A wooden artifact from a Chinese temple has a activity of 43.3 counts per minute as compared with an activity of 58.2 counts per minute for a standard of zero age
Consider the titration of 30 ml 0.1M HCLO. Ka= 5 x10^-5 with 0.095M KoH solution. determine the pH at the folwwoing points:
What is the empirical formula of a compound that contains 49.4% K, 20.3% S, and 30.3% O by mass
when hydrogen sulfide gas is bubbled into a solution of sodium hydroxide the reaction forms sodium sulfide and water.
Describe the mixture before it is centrifuged. Be specific using scientific words that aplly such as homogeneous or heterogeneous
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