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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
How does the collision theory account for the dependance of rate on the concentration of the reactants?
Calculate the mass in kg of 1 atom of silver with three significant figures. How many atoms of oxygen are present in 2.43 g of O2 ?
Question: Show how to construct a triangle given the length of one side, the distance from an adjacent vertex to the incenter and the radius of the incircle.
At the same conditions, ice has a density of .917 g/cm^3. How much work is done at these conditions by 1 kg of ice as it melts to liquid water?
Find the augmented matrix for the following system of linear equations:
A sample of water with a mass of 23.31g and an initial temperature of 367.67K loses 8615 Joules. What is the final temperature?
If the sulfuric acid is 95.0% H2SO4 by mass and has a density of 1.84 g/ml, how many kilograms of sodium carbonate must be added to neutralize the acid?
Points M(-1, 8) and N(3, -4) lie on the graph of y = -3x + 5. Which of the following points is collinear with M and N?
What are the boiling point. and freezing point of a 2.47 molal solution of naphthalene in benzene? The boiling point and freezing point are 80.1 C and 5.5 C respectively.