Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
The absorbance is .8 For concentration....it says all solutions contain 0.010 M HCl and another part says spectra of caffeine, benzoic acid, and a mountain dew sample in 0.10 M HCl. On a graph it has the points 8.74 mg/L for benzoic acid, 1.5 dilution for mountain dew soda, and 10.88 mg/L for caffeine. I can't figure out what to use for the concentration, but I get a hint that says to take note of the units for molar absorptivity.
The air track carts in the figure are sliding to the right at 1.0 meter per second. Find the speed of the carts.
A solution of ethanol (C2H5OH) in water is prepared by dissolving 69.8 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution. What is the molarity of the ethanol in this solution?
A student found that her mixture was 15% NH4Cl, 20% NACL, and 75% SiO2. Assuming her calculations are correct, what did she most likely do incorrectly in her experiment?
Calculate the equilibrium constant, K. (e) Which side of the reaction (reactants or products or neither) is favored structurally?
A buffer containing 0.4316M of acid, HA, and 0.1549M of its conjugate base, A- has a pH of 2.20. What is the pH after 0.0019 mol NaOH
How much heat is produced by the complete combustion of 256 CH4 of ? CH4+2O2=CO2+2H2O Hrxn=-802.3kJ
Calculate the internal energy change (deltaU) for vaporization of 100 g of Cl2(liq.) at this temperature and 1 bar? (b) Calculate its molar entropy change (AS) for vaporization at this condition
A solution of 0.312 M KOH is used to titrate 15.0 mL of a H2SO4 solution. write the balanced chemical equation. what is the molarity of the H2SO4 solution if 28.2 ml of the KOH solution is required?
What is the molarity of ZnCl2 that forms when 30.0 of zinc completely reacts with CuCl2 according to the following reaction? Assume a final volume of 285 mL .
the volumetric flask during weighing by difference after recording the mass, how would it affect the final result for his calculated molecular mass of the metal carbonate?
How much potassium nitrate has to dissolve in water to absorb 118 kj of heat? Lattice E is -163.8kcal/mol and heat of hydration is -155.5 kcal/mol.
What is the formula of the zinc sulfate hydrate? name this compound
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd