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The perimeter of a rectangle is 54. the length of the rectangle is three more than three times the width. Find the dimensions of the rectangle.
The vapor pressure of pure ethyl bromide at this temperature is 400.0 torr. Use Raoult's law to determine the molar mass of the compound.
A track is to be constructed around the football field at a junior high school. if the straightaways are 100 yd. in length, what length of radius is needed for each of the semicircles if the total l
Question: The perimeter of a triangle is 76cm. Side a of triangle is twice as long as side b. side c is 1cm longer than side a. find the length of each side.
Rate constants for the reaction NO2(g) + CO(g) -----> NO(g) + CO2(g) are 1.31 M-1s-1 at 700. K and23.0 M-1s-1 at 800. K.
X with seven electron dots around it, Y with six electron dots, and Z with five electron dots. To which groups in the periodic table would each element belong?
Question: Explain placeIf the non-base angle of angle of an isosceles triangle has a measure of 70o, what is the measure of each base angle? How many diagonals does a decagon have?
Briefly differentiate between solvent extraction and chromatography. What roles do these two techniques play in analytical chemistry?
What are the different chemical and physical properities on the basis of what you would view in a series of chemical reactions with the copper reactions?
Question: A backyard garden is shaped like a rectangle with a length that is 25ft longer than the width and a perimeter of 170ft. What is the width, the length and the area of the garden.
Based off of pka values of 10 for phenol and 6.4 for carbonic acid, would sodium bicarbonate be a suitable base for separating phenol from a neutral organic compound via aqueous extraction?
A solution of 2.50g of a compound having the empirical formula C6H5P in 25.0 g of benzene is observed to freeze at 4.3C. Calculate the molar mass of the solute and its molecular formula.
A solution has 41.7% transmittance in a cell with a pathlength of 1.00 cm. If the material responsible for the absorptionof light has a molar absorptivity = 738(L/mole- cm) at thewavelength used, c
A circle is inscribed in a right triangle. The right triangle has an hypotenuse of 10 and the circle hasa radius of 2. What aree the dimensions of the other two sides of the triangle.
The first-order rate constant for the reaction of methyl chloride (CH3Cl) with water to produce methanol (CH3OH) and hydrochloric acid (HCl) is 3.32 10-10s-1 at 25 degrees C.
The perimeter of a rectangular backyard is 6x+ 6 yards. If the width is x yards, finds a binomial that represents the length.
Question: What is the principle concept associated with points,lines, and planes in euclidean geometry?
A volume of 6.55 mL of the NaOH solution was required to reach the endpoint. What is the concentration of the unknown H3PO4 solution?
Each of the smaller mirror parts is itself a hexagon with sidelength 0.5 meter. What is the apothem of one of the smaller mirrors?
The temperature inside a balloon is raised from 25.0 °C to 250.0 °C. If the volume of cold air was 10.0 L, what is the volume of hot air?
The oxidation of copper 1 oxide, Cu2O (s) to copper 2 oxide, CuO (s) is an exothermic process: Calculate the energy released as heat when 25.0 grams of Cu2O (s) undergo oxidation at constant pressure.
What is the impact of a catalyst on the rate and equilibrium of a general chemical reaction?
Using the data collected for part c on your data sheet and assuming the density of the vinegar is 1.00g/mL, 1) calculate the molar concentration of acetic acid (CH3COOH) in the vinegar sample using
At the movies, Maurice counted the number of kernels of popcorn that filled his tub and found that it had 316 kernels. He decided that the next time, he will get an enlarged tub that is similar, bu
Bill's train leaves at 8:06 AM and accelerates at the rate of 2meters per second per second. Bill, who can run 5 meters persecond, arrives at the train station 5 seconds after the train hasleft. De