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Explain in detail that what three things can be done in order for a solution to be mixed more completely? Give the names of a) H2SO4 b) HF c) NaOH?
Determine the numbers of g of MgCl2 are needed? Explain how you came about this answer. Determine the molarity of the MgCl2 solution? Explain how you came about this answer?
Given 400 mL of an aqueous solution which is having the 12 g of compound A, determine the numbers of grams of A could be removed from the solution by a single extraction with the 200 mL of diethyl e
Explain what stage of aerobic respiration results in the complete oxidation of pyruvate into the carbon dioxide?
Determine the concentration of sodium acetate [Na(CH3COO)] formed at the equivalence point when the 25.0 mL of 0.0750 M acetic acid (CH3COOH) are titrated with the 0.0300M NaOH.
Discuss how much 0.100M NaOH must be added to the 45.0 mL of 0.100M HOAc (Ka for acetic acid = 1.8 x 10^(-5) to give a solution whose pH is 4.30?
A beaker which is having of 25.00 mL of 0.1000 M acetic acid (HOAc, Ka = 1.8 x 10 ^(-5). O.1000 M NaOH is added from a burette. What will be the total solution volume in the beaker, assu
A sample which is weighing 0.3375 g and containing NaHCO3 (84.01 g/mol), Na2CO3 (106.0 g/mol) and inert material is dissolved and titrated with the 0.1014 M HCl.
The solubility of a hydroxide M (OH)2 is 0.0090 g per liter. The molecular weight of M (OH)2 is 150. If 1.0 gram of MSO4 is dissolved in the 500 mL of water buffered at pH 8.50, will a
If this sample is titrated with acid, it is found that 20.10 mL, if this sample is titrated with acid, it is found that 20.10 mL of 0.5310 grams of 0.5010M HCl are required to reach the endpoint.&nb
A silicate mineral which is weighing 0.4700 grams gives an insoluble residue containing both Fe2O3 and SiO2 (159.7 g/mol) weighing the 0.2720 grams. Analysis of the residue shows it to contain
A solution is made by dissolving the 0.40mol isopropanol (C3H7OH) in the 0.80 mol water. Determine the mole fraction of isopropanol?
Explain what would the final temperature of the water resulting from the addition of 20g of steam at the 100(degrees) C to 80g at the 0(degrees)C?
Determine the volume of dry hydrogen formed at the STP if 44.00 mL of hydrogen is actually collected OVER WATER from the above reaction conducted at 22.0 C and 759.2 torr.
If 0.0425 g of Magnesium is reacted with an excess of hydrochloric acid, and determine the volume of at STP of hydrogen gas formed, and explain why it is important to equalize the water lev
Why the freezing point depression measurement of benzoic acid in acetone yields a molar mass of 122 g. This same measurement in benzene yields a value of 242 g.
What is the atomic radius of silver when the silver crystallizes in a face-centered cubic unit cell? A silver atom is at the edge of each lattice point. The length of the edge of the unit cell is 0
At 45*C an ice cube at 0*C was dropped into the 30 grams of water in a cup. At the instant that all the ice melted, the temperature of the water in the cup was 19.5*C. Explain what did the ic
Determine the minimum mass of glycerol (C3H8O3) that must be dissolved in the12.0 mg water to prevent the solution from the freezing at the -26°C?
In some antacids the calcium carbonate is the active ingredient. One of the inert ingredients is silicon dioxide. What are their formulas? Are these compounds ionic or covalent?
A big cannon is assembled on an airless planet. The planet consists of a radius of 5.0*10^6 m and a mass of 2.6*10^24 kg. The cannon fire a projectile straight up at around 4800 m/s. Part I: Determ
Determine the molar mass of the polymer sample? In a study designed to prepare new gasoline-resistant coatings, a polymer chemist dissolves 6.041 g poly (vinyl alcohol) in enough water to make 100.0
The target then travels a distance of 7.6 m before it lastly comes to rest. Therefore, if the coefficient of kinetic friction is then 0.15, then what would have been the speed of the arrow just befo
Determine the de Broglie wavelength of a Nolan Ryan fastball moving at 100 mph? The mass of the base-ball is around 145 grams.
A 18.0 resistor, a 12.0 µF capacitor and a 17.0 mH inductor are joined in series having a 170 V generator. (i) Determine at what frequency is the current a maximum? (ii) Determine the maximum va