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Vector A? is in the direction 44.0° clockwise from the -y-axis. The x-component of A? is Ax = -20.0 m.
What is the y-component of A??
What is the magnitude of A? ?
when 3.299 of iodine reacts with fluorine, 5.768g of IFx is formed. What is the value of x in product formula (IFx)?"
Given the following reaction. (Equation not balanced.) ZnS + O2 ? ZnO + SO2 How many grams of SO2 can be made from the reaction of 18.5 grams of O2 with excess ZnS
Calculate the density of air at the experimental conditons identified in part A C) Calculate the mass of air in the flask before the liquid was added.
If water is added to 2mol of sodium chloride in a flask until the volume of the solution is 1 liter, what is the molarity of the solution?
Problem- In a solution of 243 mM sodium phosphate buffer (so the concentration represents all forms of phosphate no matter the ionization state) at pH 7.2, what is the ratio of HPO4-2 to H2PO4-. The pKa's of phosporic acid are 2.15, 6.86 and 12.32..
Problem- At least how many standard solutions would you need to make a calibration graph, assuming that the graph is expected to be a straight line? Explain your answer. Do not comprise the data from distilled water in this question.
The equivalence point was reached after 41.3 mL of the titrant was added. What was the concentration of the original hydrogen peroxide solution?
The secondary bonding of gas molecules to a solid surface is a common mechanism for measuring the surface area of porous materials, by lowering the temperature of a solid well below room temperature, a measured volume of gas will condense to form ..
Water at 20°C flows through a 4.1 cm I.D. plastic pipe 100 m long. The velocity of the water at the inlet of the pipe is 1 m/s. The outlet of the pipe discharges to atmosphere and is 20 m above the inlet.
When there are 3 lone pairs around the central atom with 5 electron pairs, the lone pairs occupy which of the following. all axial positions one axial and two equatorial positions. two axial and one equatorial positions all equatorial positions
Utilize the labeling system derived from organic chemistry where the carbonyl carbon would be one in all compounds with a carbonyl- use the carbon numbers from glucose.
when the zinc coating on an iron can is scratched, rust does not form. use the activity series to explain why this happens.
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