What is the ph of a buffer prepared
What is the pH of a buffer prepared by adding 180 mL of 0.100 M NaOH to 200 mL of 0.100 M acetic acid? (Ka for CH3COOH = 1.8 x 10-5)
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A 250.0 mL sample of chlorine gas is collected when the barometric pressure is 798 mmHg. What is the volume of the sample after the barometric pressure dropped to 745 mmHg?
An “A” group metal (M) reacts with chlorine and oxygen to form ionic compounds with the formulas MCl4 and MO2. Propose a possible identity for the metal M. Explain your reasoning.
In a reaction 8200 g of sodium reacts with 74.00 g of ferric oxide to form sodium oxide and iron metal. Calculate the mass of sodium iron produced.
Cheap ethanol, C2H5OH, manufactured from crude oil, can be used in fake wine instead of of ethanol derived from fermentation of grapes. this fake wine.
What is mass of O2 released? (0.2004g) How many moles of O2 were released? (.0063g) How many moles of KClO3 required by the moles of O2 released? (2 moles)
What is the total number of moles of aluminum oxide that can be formed when 54 grains of aluminum reacts completely with oxygen?
a sample of hydrogen effuses through a porous container about 9.00 times faster than an unknown gas. estimate the molar mass of the unknown gas.
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: The National Council for the Social Studies (NCSS) outlines a developmental sequence for social studies-the youngest children learn about their neighborhood
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