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A car starts at mile marker 145 on a highway and drives at 55 MI/HR in the direction of decreasing marker numbers. What mile marker will the car reach after 2 hours? Part A The rate constant for a certain reaction is K = 5.60×10^?3 s^-1 . If the initial reactant concentration was 0.500 M , what will the concentration be after 9.00 minutes? Part B A zero-order reaction has a constant rate of 1.30×10^?4 M/s. If after 60.0 seconds the concentration has dropped to 8.00×10^?2 M, what was the initial concentration?
Calculating standard enthalpy change, heat, and mass of a reaction, Methanol (CH3OH) is used as fuel in race cars. Calculate the standard enthalpy change for the reaction, assuming H2O(g) as a product.
if 2000 l of hard water contains 0.022 m ca2+ and 0.0070 m mg2+, how many moles of na+ are needed to replace these ions?
You are given 5.00 mL of an H2SO4 solution of unknown concentration. You divide the 5.00-mL sample into five 1.00-mL samples and titrate each separately with 0.1000 M NaOH.
potassiumm chlorate (KClO3) decomposes to form potassium chloride and oxygen gas. if 5.4 moles of potassium chlorate decompose, how many moles of oxygen could be produce.
Compute the number of moles - As we know many volatile substances are present in Earth's atmosphere in trace amounts.
If 2.50L of 1.25M BaCl2 added to 3.50L of 2.45 M NaCl, what is molarity of Chloride ions in final solution
determine what mass of AgCl silver chloride can be formed from 1.03L of a 0.132M solution of AgNO 3 silver nitrate
Calculate the basic buffer capacity of a solution of 50.00 mL of 0.334 M HC2H3O2 to which is added 50.00 mL of 0.154
calculate the freezing point and boiling point of a solution of 383 g of glucose dissolved in 400.0g of H2O
If 37.0 grams of hydrogen sulfide gas (H2S; MM = 34.08 g/mol) react with 37.1 grams of oxygen gas (O2, MM = 32.00 g/mol), what is the mass of sulfur dioxide (SO2, MM = 64.06 g/mol) gas produced?
A beaker with 185 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 6.70 mL of a 0.440 M HCl solution to the beaker.
how long will it take for the concentration for XY to decrease to 12.5% of its initial concentration when its 0.100M. Rate constant is 7.12 *10^-3.
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