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1. We have a solution that is prepared when 525 grams of Pb(NO3)2 Lead(II) nitrate dissolved in 1.250 liters of water then determine the molarity of this solution?
2. Determine the volume of 0.M baryta (Barium hydroxide is the chemical compound with the formula Ba(OH)2) that is needed to neutralize 35 ml of 0.2M phosphoric acid (H3PO4), ?
How you will protect an underground pipe line from corrosion and what are biodegradable polymers or what are conducting polymers
Correlation of structure with the melting point - What structural aspect of these 18-carbon fatty acids can be correlated with the melting point?
Solving this question helps the student to understand how to find molecular formula using moles and mass and What is the molecular formula of this compound?
A rock contain 3.2 grams of a radioactive isotope, uranium-235, . Determine what was the original amount of uranium-235 in the rock If the rock has undergone 2.75 half lives, and how old is the rock?
Sketch Flow diagram and explain the extraction process - What is the purpose of extracting the organic layer with water in the first extraction step?
Evaluate the electronic configuration for ionization energies of Magnesium, the orbital number in which the electrons are added in phosphorus ion, and the one will lose in the ionization of Alluminium.
Determine how many grams of sodium chloride are required to prepare 250. mL of this solution. (if given the density of the saline solution is 1.0 g/mL)?
Determine the partial pressure and the total pressure using Dalton's law of partial pressures - Determine the total pressure of the mixture.
In which compound does sulfur have the highest oxidation number a)Na2S2O3 b)NaHS c)H2S d)KHSO3 e) CuSO4
Using a sample of water with a mass of 46.0 grams at a temperature of -58. Degree Celsius calculates how many Joules of energy (E) are necessary to heat the ice to 0 degree Celsius. Specific heat of ice= 2.1 J/g C).
using a sample of river water sample analyzed for total inorganic carbon ,The river pH= 7.1 and an inorganic C concentration of 6.97 mg C/L.c
N and H undergo a combination reaction under appropriate conditions, to yield ammonia: N2 (g) +3H2 (g) →2NH3 (g), determine how much sample of N2 in grams requires 3.0 g of H2 for complete reaction.
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