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How long would you need to sample from a concentration of 1000 PPM using a flow rate of 50 ml/minute to collect 100 mg of material? Assume the material has formula weight of 200 g and NTP condition Please show all your steps
A colorless liquid A (C3H6O) was soluble in water and ether, and had a boiling point of 94-96 degrees Celsius. It decolorized a Br2-CH2Cl2 solution and gave a positive ceric nitrate test
Find the weight percent copper in the salt. Would you help me to sort out this question? A 3.026 gram portion of Cu(II) salt was dissolved in a 250 ml volumetric flask. A 25.0mL
1.248-g sample of limestone rock is pulverized and then treated with 30.00 mL of 1.035 M HCl solution. the excess acid then requires 11.56 mL of 1.010 M NaOH for neutralization.
M. tuberculosis, the organism that causes tuberculosis, can be completely destoryed by irradiation with UV light with a wavelength of 254 nm. What is the frequency?
An automobile engine requires a carburetor or fuel inector to mix the fuel with air. The fuel and air must be mixed in a particlar ratio to achieve maximum efficiency in the combustion of the fuel.
Important information about AP Chemistry a. S(2)O(3)^2- (aq)+I(3)^- (aq) ->S(4)O(6)^2- (aq) + I^- (aq) b. Mn^2+(aq) + HBiO(3) (s) ->MnO(4)^- (aq) + Bio^+ (aq) (acid)
chemical potential energy from rotating turbines into thermal energy. B) electrostatic energy from rotating turbines into chemical energy
Reaction 1 uses 0.260 of reactant, and Reaction 2 uses 0.590 of reactant. How many times faster is Reaction 2 compared to Reaction 1.
How much heat is needed to vaporize 2.42 g of liquid oxygen if the molar heat of vaporization for oxygen is 1,629 cal/mole?
how many moles of N atoms are there in .882 moles of (NH2)2CO?
At an altitude of 45.00 km, the average atmospheric temperature is essentially 0 degrees C. What is the average number of air molecules per cubic centimeter of air at this altitude?
How many milliliters of a 0.28 M HCl solution are needed to react completely with 8.4 g of zinc to form zinc(II) chloride? Answer in units of mL.
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