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One vector has an x-component of 9 m, a y-component of 10 m and a z component of 9 m. Another vector has an x-component of -5 m, a y-component of -2 m and a z-component of -2 m. What is the dot-product of these two vectors?
How many grams of aluminum metal and how many liters of chlorine gas can be produced by passage of 4.8 amp of current for 2.3 hours under standard conditions
Determine the dissociation constants for the following acids. Express the answers in proper scientific notation where appropriate
How can I make up 100ml of a solution containing Compound A (solid, purity of 83.7%) at 90 ug/ml and compound B (liquid, density 1.12 and purity of 90.5) at 30 ug/mL for HPLC reference standard.
Draw all possible isomers for the molecule having the formula C7H7C1. The molecule contains one benzene ring.
A chemist needs a pH 3.5 buffer. Should she use NaOh with formic acid ( Ka =1.8x10-4exp.) or with aceticacid ( Ka = 1.8x10-5 exp)? Why. What os the disadvantage of choosing the other acid. What is the role of NaOH
Blood is a mixture of salts, sugars, proteins, small molecule waste products and blood cells. What type of mixture is each (solution, colloid or suspension)? When the blood is filtered through the kidneys, which would pass into the urine
A 150 -g sample of water is cooled from 30 degrees C to 15 degrees C, thereby losing approximately 9420 J of heat. What is the change in E in J.
9.780 grams of gaseous mixture contains ethane ,C2H6 and propane ,C3H8. it needs 1.120mol of oxygen when complete combustion to form CO2 and H2O. Compute the mass percent of C2H6 in the original mixture.
Balance the equation in acidic solution and determine how much of a 0.850 M K2 Cr2 O7 solution is required to completely dissolve 5.25 g of Cu.
what is the purpose of ethylene glycol in this chemical experiment. why is it chosen specifically for this reaction.
13.00 moles of gas are in a 5.00 L tank at 22.6 C. Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a = 2.300 L^2*atm/mol2 and b = 0.0430 L/mol.
a .150 gram sample of solid leadii nitrate is added to 125 ml of .100 m sodium ... .100 m sodium iodide solution.
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