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A 0.299 kg toy car moves across a flat surface with an initial speed of 11 m/s. It then moves up a inclined plane with an angle of 33.2 degrees above horizontal. What is the speed of the car after it has moved 2.2 m along the plane?
Deduce the numerical value of x in the formula Mo(CO)x. Explain the rationale for your chosen value of x. (Hint: consider electron pairs and bonding opportunities.)
What will be the theoretcal yield of tungsten(s) ,W, if 45.0 g of WO3 combines as completely as possible with 1.50 g of H2? WO3(s) + 3H2(g) => W(s) + 3 H2O(g)
Define what is the pH of the solution when 18.30 mL of 0.137 M trisodium hemimellitalate (trisodium benzene 1,2,3, tricarobxylate) is mixed with 25.00 mL of 0.274 M HNO3 (to two d.p.)?
1. Calculate the molar solubility of CaF2 in a solution containing 0.250 M Ca(NO3)2
A gas mixture with a total pressure of 770 contains each of the following gases at the indicated partial pressures: , 265 ; , 134 ; and , 159 . The mixture also contains helium gas. What is the partial pressure of the helium gas?
Write an equation for the precipitation reaction that occurs when potassium carbonate and nickel(ll) chloride are mixed
An attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomers. The mixture had an observed specific rotation of 12.4°.
You need to produce a buffer solution that has a pH of 5.05. You already have a solution that contains 10 mmol (millimoles) of acetic acid. How many millimoles of acetate
Some people have argued that rocket engines will not work because the gaseous products of said engine, pushing against a vacuum of space, do not perform any work, therefore the engine will not propel anything.
measured in a 1.00-cm pathlength cuvette, has an absorbance of 0.321 while the reagent blank in the same cuvette has an absorbance of 0.014. What would be the absorbance reading of these two solutions if measured in a cuvette with 5.00 cm pathleng..
If 2.00 g of iron metal are reacted in a calorimeter with a heat capacity of 500 Joules/Celsius, what would be the final temperature of the calorimeter if its initial temperature were 23.0 celsius
Cyanogen is a gas which contains 46.2% C and 53.8% N by mass. At a temperature of 25C and a pressure of 750 mm Hg, 1.50 g of cyanogen occupies 0.714 L. What is the molecular formula of cyanogen
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