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Pick one of the following elements: Na, O, Fe, Cl. Based on what we have learned so far, type and attach an one to two paragraph paper on this element. Include information such as classification, reactivity, solubility of its compounds, etc.
an extended source emits 2.00 w cm-2 sr-1 nm-1 at 300 nm. calculate the spectral radiant power impingent on a 1.00 cm2
If the pH of a 1.00-in. rainfall over 1500 miles2 is 3.80, how many kilograms of sulfuric acid, H2SO4, are present,assuming that it is the only acid contributing to the pH
A gas occupying a volume of 627.0 mL at a pressure of 0.967 atm is allowed to expand at constant temperature until its pressure reaches 0.596 atm. What is its final volume in mL?
The probability of filling a 3p orbital relative to the 3s orbital is 3/1. Assuming that the total Mg+ population in a given atomization source is 3.5 x 10^18 ions at any given time, what would be the number of ions that are in the excited 3p stat..
Imagine that you are a geologist trying to determine the amount of iron in the samples of rocks in a mountain side. A typical reaction used to determine the amount of iron in a sample is to combine it in a reaction with permanganate ion, MnO4-, with ..
Calculate the molarity and the molality of an NH3 solution made up of 36.5 g of NH3 in 70.0 g of water. The density of the solution is 0.982 g/mL.
The specimen was found to have a ratio of 14C/12C 0.795 times that found in current living plants. What would be the estimated age of the fossil remains? The half-life for carbon -14 is 5720 years.
If the vapor pressure of ethyl ether and ethyl alcohol at 20°C are 375 torr and 20.0 torr, respectively, the vapor pressure of the solution at 20°C
use the measure "mass of 10.00mL" which is 10.574g, to calculate the density of mass NaCl which is 5.923g
a 10.0-g sample of ice at -16.0degc is mixed with 105.0 g of water at 76.0degc. calculate the final temperature of the
Calculate the concentrations of all species at equilibrium for each of the following cases. (b) 1.0 mol pure HOCl is placed in a 2.9-L flask. exact answer only please.
magnesium sulphate MgSO4 has an observed osmotic pressure =7.6 atm at the temperature of twenty five degree celsius. Determine the observed van't Hoff factor?
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