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In 480 mL of 1.05 M CaCl2 solution,
(To avoid rounding errors, enter your answers to at least three significant figures.)a. How many moles of CaCl2 are present? molb. How many grams of CaCl2 are present? gc. How many moles of calcium ions are there? mold. How many moles of chloride ions are there?
The pH of a bicarbonate-carbonic acid buffer is 8.00. Calculate the ratio of the concentration of carbonic acid (H2CO3) to that of the bicarbonate ion (HCO3-).
Calculate the radius of a Au (gold) atom if Au atom has a face-centered unit cell ? it is given that its density = 19.32 g/cm 3 .?
Calculate the pH during the titration of 30.00 mL of 0.1000 M NaOH with 0.1000 M HCl after 30.31 mL of the acid
How many atomsof carbon are present in 34.5 grams of caffeine?
Separation scheme for isolating benzoic acid, Could you please show me a separation scheme for isolating benzoic acid from a reaction mixture if mixing a Grignard
Determine what is the percent yield of the reaction If 15.0 grams of Nitrogen and 2.00 grams Hydrogen react to produce 1.38 grams of Ammonia?
A 1.50L sample of neon gas at 1.10 atm and 25 degrees celsius is heated to 45 degrees celsius. The neon gas is then subjected to a pressure of 1.50 atm. Determine the new volume of the neon gas.
Calculate total and individual w, q, ΔU, ΔH, and ΔS of an Otto engine operating on stoichiometric ethanol - oxygen gas mixture, with cylinder volume of 1 l and compression ratio of 18:1.
what is the volume percent of a solution prepared by dissolving 43 g of NaOH in enough water to make a final volume of 120 ml.
What is the molality of a solution in which 15g of I2 is dissolved in 500g of alcohol?
A student ran the following reaction in the laboratory at 689 K H2(g) + I2(g) 2 HI(g)
how much of this chemical would have been measured? Express in terms of measured concentration C (mg/litre) of the filtered sample?
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