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A high quality CAD system uses the following for printing drawing and graphs
None of the above
1. how much heat is required to warm 123 g of water by 23.0 degrees c?2. the temperature of 55.6 grams of a material
Explain how many grams of calcium chloride will be Produced when 26 g of calcium carbonate are combined with 12.0 g of hydrochloric acid. Explain which reactant is in excess and define how many grams of this reactant will remain after the reaction i..
a 2.00 kg sample of pure water at 20.0 degree celsius absorbs 3.53 kJ of heat. What is the final temperature of the water?
Calculate the pH of a solution that is 0.295 M in sodium formate (NaHCO2) and 0.205 M in formic acid (HCO2H). the Ka of formic acid is 1.77x10^-4.
(a) What is the pH of this buffer (b) What is the pH of the buffer after the addition of 0.48 mol of NaOH. (assume no volume change) (c) What is the pH of the original buffer after the addition of 0.23 mol of HI. (assume no volume change)
water enters a pipe of diameter 3.0 cm with a velocity of 3.0 ms. the water encounters a constriction where its
what is the molarity of a solution containing 7.0 moles of solute in 4300 mL of solution?
if 0.500 g of antacid was added to 50.00 ml of 0.100 m hcl and 5.65 ml of 0.100 m naoh was required to titrate the
Table below lists absorption values of an FT-IR band at 1530 cm^-1 due to bending vibrations of polyethylene in polyethylene/polybutadiene (PE/PBT) blends.
Bromine is extracted from brine wells. The process involves treating water containing bromine ion with chlorine gas and extracting the Br2 from the solution using an organic solvent. Write a net ionic balanced equation for the reaction of chlorine..
at a particular temperature k 4.0 x 10-7 for the reaction n2o4g ---gt 2no2g. in an experiment 1.0 mol n2o4 is placed
Calculate the ?(wavelength) (m) associated with an electron that travels at 50% of the speed of light. (Mass of an electron = 9.11 × 10-28 g)
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