Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
The 1.912-g sample of calcium chloride is decomposed into its ingredient elements and found to contain 0.690 g Ca and 1.222 g Cl. Describe the mass percent composition of Ca and Cl in the calcium c
Determine the numbers of grams of water are produced when the 17.5 g of oxygen reacts with the nitrogen? Explain in detail.
75.0 mL of 0.355 M hydrochloric acid is added to 25.0 mL of 0.298 M MgCl2 . Determine the concentration of chloride ion in the final solution?
Determine at what mass of lithium phosphate is required to prepare the 575 mL of a solution which is having a lithium ion concentration of 0.250 M?
Combustion analysis of a 25.70mg sample of an organic compound containing only C, H, and N yielded 71.49mg of carbon dioxide and 14.64mg of water. Calculate the mass percentage of nitrogen in organi
There are 6.02 x 1023atoms of mercury in 201grams of mercury. Let the density of mercury is 13.5 g/mL. Determine the volume in μm3, which is occupied by one mercury atom?
Determine the pH become if 20.% of the carbonic acid molecules are transformed to the bicarbonate ions?Determine the pH become if 18% of the bicarbonate ions are transformed to carbonic acid?
Consider the concentration of a solution of lactic acid, (HC3H5O3). The pH of the solution was 2.27. Calculate the concentration of the solution? The Kaof lactic acid is 1.4 x 10-4.
Calculate the hydronium-ion concentration of a 2.51 x 10-4 M solution of p-bromobenzoic acid, BrC6H4COOH, for which Ka = 1.00 x 10-4?
The solution of acetic acid (HC2H3O2) on a laboratory ridge was of undecided concentration. If the pH of the solution was given 2.81, determine the original concentration of the acetic acid?
Determine how much ice in grams would have to melt at the lower temperature to 468 ml of water from 39 degrees C. to 2 degrees C. (Suppose the density of water is 1.00 g/ml, the heat of fusion for w
Determine the number of heat in kilojoules is developed in converting 3the 6.0 g steam at 180 degrees C. to ice at -60 degrees C. (where the heat capacity of steam is 1.184 J/g-c and the ice is 2.09
The wavelength of a red laser pointer light of 808 nm. In the form of visible radiation if the laser emits 7.50E-4 J of energy in per second, than calculate the number of moles of photons in per se
The detergents contains some of the compounds that have a suffocate group on its place of a carboxylate. Identifies that why do detergents work better comparison the soaps at all the pH ranges?
Identifies some of the possible side products which is absorbed from an aldol condensation reaction, where a benzaldehyde reacts with an acetone molecule. Determine at least three of them. .
Determine the molarity of a solution which is made by dissolving 48.2g of Magnesium Bisulfate in sufficient water to produce the 300 mL of solution?
A collapsible vessel which is having the volume of 40.0 L 1.31 mole of dry nitrogen at an unknown temperature and have the pressure of 710 mmHg.
If the heat released During the condensation goes only on the way to heating metal if the heat released than Calculate the final temperature of the lead block in degrees Celsius?
A gaseous hydrocarbon is decomposed and it is having the 82.66% C and 17.34% H, by mass. The volume of 158 ml of the gas, calculated at 556 mmHg and 25 degrees C., is originate be 275 mg. How can d
Determine the number of grams of KOH must be dissolved in the water to produce the 88.0mL of a solution, which will react with 113mL of 1.10 MCH3COOH?
The characteristics of an amino-acid of C=O carbonyl stretch has an energy of 3.367 x 10-20 J. Determine the wavelength in nm, where the frequency is s-1, the wave number in cm-1, and its energy
The sample of an unknown substance of .2436-g melts in 20.0 mL of cyclo-hexane. The density of cyclo-hexane found the 0.779-g/mL and the freezing point depression was 2.1 C. Determine the mola
During the study of net ionic equation for Hc2H3O2 and NH3 H2O which is H+ + NH3 --->NH4+ Why the solution is weak electrolyte but strong conductor when it mixed into the solution? Expla
Calculate at what mass of aluminum can be formed by the Hall process within a period of 19.3 h, by using a current of4.1 MA? Explain in detail.
150L of concentrated HCl (12.0M) is released into a lake having 5.0 x 105 m3of water during the highway accident. If the pH of this lake was 7.0 prior during the accident, Calculate the pH of t