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Type your question hereA 0.1390-g rock sample of unknown concentration was dissolved in HCl and diluted to 100.0 mL. Aliquots of 10.00 mL of this unknown solution were added to different volumes of a 2.08 ÃŽ¼g/mL Ca standard solution and diluted to 200.0 mL. Find the weight percent of Ca in the rock sample and the associated uncertainty from the x-intercept using the method of least squares. Unknown (mL) 1) 10, 2) 10, 3) 10, 4) 10, 5)10 / Standard (ml) 1) 0, 2) 5, 3) 10, 4) 15, 5) 20 / Final Volume (ml) 1) 200, 2) 200, 3) 200, 4) 200, 5) 200 / Emission Intenisty 1) 221, 2) 407, 3) 631, 4) 825, 5)
Determine the volume of 0.375 mol of C4H10 gas under the same temperature and pressure conditions?
Count Rumford observed that using cannon-boring machinery, a single horse could heat 11.6 kg of water (T = 273 K) to T = 355 K in 2.5 hours
According to the solubility rule, silver will precipitate with SO42- but doing my lab i found no precipitation when i added AgNO3
If 153 mL of wet H2 is collected over water at 24°C and a barometric pressure of 729 torr, how many grams of Zn have been consumed?(The vapor pressure of water is 22.38 torr at 24°C.)
solid NaI is slowly added to a solution that is 0.010 M in Cu+ and 0.010 M in Ag+. which compound will begin to precipitate first?
what mass of chromium could be deposited by electrolysis of an aqueous solution of Cr2(SO4)3 for 160 min. using a constant current
Use the Henderson-Hasselbach equation to calculate the pH of an acetate buffer in which the acetate concentration [CH3COO-] is three times greater than the acetic acid [CH3COOH] with a pKa of 4.76.
The double-replacement reaction below results in the formation of the precipitate lead chloride. Balance the equation and write the net ionic equation.
HCl solution to reach the methyl red endpoint. Calculate the weight percent NH3 in the aqueous water
A 36.3 ml aliquot of 0.0529 M H2SO4 (aq) is to titrated with 0.0411 M NaOH (aq) What volumen (ml) of base will it take to reach the equivalence point
Draw any resonance form and state whether it is more or less stable than the original. ( if this is explained i will reward all points)
Calculate the partial pressure of propane in a mixture that contains equal masses of propane (C3H8) and butane (C4H10) at 20.0 °C and 738 mm Hg.
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