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how many moles of NaCl would be made by combining 20,000 moles of Na with 2 moles of Cl
Calculate the number of millimoles of HCl needed to reach the methyl orange end point. b. How many millimoles of Na2CO3 reacted with the HCl?
The contents of one 40-lb bag of topsoil can cover 10.0 square feet of ground to a depth of 1.0 in. How many bags are needed to cover a plot that measures 200.0 meters by 300.0 meters to a depth of 4.0 cm?
How many grams of water can be cooled from 36 degrees celsius to 23 degrees celsius by the evaporation of 53g of water.
calculate the heat released when 166g of water at 23 degrees celcius is converted to ice at negative 10 degrees celcius
Draw the abbreviated structural formula of the products of the complete hydrolysis of lidocain.
Calculate molarity of a KCl solution prepared by dissolving 0.525 moles of Kcl in 250. mL of water.
At what temperature will a 1.3 g sample of neon gas exert a pressure of 491 torr in a 5.9 L container?
What is the concentration of the HNO3 solution? (b) How many moles of NaOH were in excess after the first addition?
draw and label structures cis and trans isomers of 3,4 -dibromo-3-hexene, 3) structure of terpin hydrate. Is it more water soluable or less than the starting material?
Determine how many atoms there are in 1 gallon using your knowledge of mole calculations and unit conversions. Assume that the molecular formula for gasoline = C6H14 ,the density of gasoline =0.85 grams/mL
At 8:00 a.m., a patient receives a 58-mg dose of I -131 to obtain an image of her thyroid. If the nuclide has a half-life of 8 days, what mass of the nuclide remains in the patient at 5:00 p.m.
Nitric oxide, oxygen, and nitrogen react by the following equation. 2 NO(g) N2(g) + O2(g)Kc = 2.3 10^30 at 298 K
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