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A dancehall contains 173 men and 238 women. A certain "promenade" calls for the formation of groups, with each group consisting of one man with two women. a)How many groups could be formed? b) which sex is in excess? By how much?
Describe the nature and characteristics of PCB's. Why are they of importance to an EH&S or FS professional who encounters them when coming upon an incident scene where they are present?
Determine the pressure in Standard atmospheres,Torr and mm Hg units when A gauge on compressed gas cylinder reads 1500 psi ( pounds per square inch; 1 atm =14.7 psi).
what will be the final concentration of the seawater at 20 °C when reverse osmosis stops? Assuming that seawater has a total ion concentration (a.k.a colligative molarity) of 1.10 Mc, calculate how many liters of seawater are needed to produce 15...
The combustion of one mole of propane, C3H8, releases 531 kcal. How much heat is released by the combustion of 1.20 moles of propane?
A 0.277 g sample of unknown monoprotic acid requires 39.21 mL of 0.1019 M NaOH to reach the endpoint.
If a piece of aluminum with mass 3.90 g and a temperature of 99.3 degrees celcius is dropped into 10.0 cm cubed of water at 22.6 degrees celcius, what will be the final temperature of the system?
The splitting pattern of interest contains a quartet at 4.06 ppm and a triplet at 1.24 ppm. What common alkyl group is responsible for this splitting pattern
A researcher studying the nutritional value of a new candy places a 4.20-gram sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. The observed temperature increase is 2.71 °C
aluminum oxide al2o3 is a widely used industrial abrasive corundum emery with its specific application depending on the
Write the net ionic reaction from the following balanced reactions: 1. FeCl3 (aq) + K3PO4 (aq) = FePO4 (s) + 3 KCI (aq) 2. Ba(NO3)2 (aq) + Ag2SO4 (aq) = 2 AgNO3(aq) + BaSO4 (s)
How much of the drug substance has to be used (calculate)? B) How much NaCl do you need to add to hace an isotonic preparation?
What is the geometric structure of acetone (CH3)2CO. Indicate the bond angles and specify if they are non-ideal. Help?
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