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What is the concentration of Cl-? Plug that number into the Ksp equation to determine the solubility of AgCl when it is in a solution of 0.15 M NaCl .
When X-rays of wavelength 0.900 nm are diffracted by a metal crystal, the angle of first-order diffraction (n = 1) is measured to be 15.2°. What is the distance (in pm) between the two layers of
Calculate Q. Is Q larger or smaller than the Ksp? Is the solution unsaturated, saturated, or supersaturated? Will a precipitate form in this solution?
mixture of 100 mol containing 50 mol % n-pentane and 50 mol % n-heptane is distilled under differential conditions at 101.2 kPa until 40 mol is distilled. What is the average composition of the tota
Calculate the energy in joules and calories lost when 10.0 {rm g} ethanol, {rm C_2H_5OH}, cools from 62.5^circ C to -46.0^circ C
Calculate the theoretical yield of C2H5Cl when 124 g of C2H6 reacts with 219 g of Cl2 , assuming that C2H6 and Cl2 react only to form C2H5Cl and HCl
What fact allows the separation of iron and aluminum from nickel and cobalt? What fact allows for the separation of iron from aluminum?
what is the freezing point of a solution of 1.17g of 1- naphthol, C10H8O dissolved in 2ml benzene at 20 degree centigrade? the density of benzene at 20 degree centigrade is 0.876g/mole. Kf for benze
Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of hydrogen gas are formed when 48.7 g of sodium are added to water? 2Na+2H2O-->2N
How much heat is required to warm 229 g of ice from -44.9C to 0.0C, melt the ice, warm the water from 0.0C to 100.0C, boil the water, and heat the steam to 173.0C?
What is the molarity of a NaOH solution if 28.2 mL of a 0.112 M H2SO4 solution is required to neutralize a 25.0-mL sample of the NaOH solution?
144 g of ethanol, C H OH, and 96.0 g of water are mixed giving 269.4 mL of a solution with density of 0.891 g/mL. The water is considered to be the solvent. What is the molarity (M) of ethanol in th
Given that the solubility of an inorganic acid, Y, in water is about a quarter of its solubility in ether, calculate the weight of the acid in each layer at equilibrium after first extraction of 3.
Write a balanced equation for the reaction between the following. (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer.) aluminum and sulfuric acid.
Measurements show that unknown compound X has the following composition: Write the empirical chemical formula of X
The Henry's Law constant of methyl bromide, CH3 Br, is k = 0 .159 mol/(L a tm) at 25C. What is the solubility of methyl bromide in water at 25 C and at a partial pressure of 250 mm Hg
What mass of magnesium chloride is needed to react with 145 g of silber nitrate accourding to the following reaction: MgCL2(aq)+2AgNO3(aq) -> MG(NO3)2(aq) + 2AgCL
If 100ml of NaCl is added to 200ml of solution containing 0.005M AgNO3 and 0.10M Pb(NO)3 does a precipitate form? If one forms, what compound(s) does this solution contain?
What volume of N2 gas (measured at STP) would result from the reaction of 1500 kg of hydrazine and 1000 kg of N2O4?
Calculate the pH of a buffer solution with .10 moles of C2H5COOH and .13 moles of C2H5COONa in 1.5L
A pure gas sample at room temperature (25 C) has an average molecular speed of 682 m/s. What is the identity of the gas?
53.0 ml of of 1.50 M solution is diluted to a volume of 268 ml. A 134 ml portion of that solution is diluted using 147 ml of water. what is the final concentration?
Calculate the percent ionization of the acid under these conditions. What effect does the nonionized acid have on the membranes lining the stomach?
A 4.10 g nugget of pure gold absorbed 299 J of heat. What was the final temperature of the gold if the initial temperature was 24.0°C? The specific heat of gold is 0.129 J/(g·°C).
A piece of metal with a mass of 122 g is placed in a 50 mL graduated cylinder. The water level rises from 20. mL to 39 mL. What is the density of the metal?