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In one of the Hazmat Textbooks I have read said "If you have an acid (or base) without a water component, the reading from pH paper is meaningless." Based on this statement, a first responder could apply a little water to the pH paper before using it to measure the pH of an unknown liquid.
Please discuss why you agree or disagree with wetting the pH paper before using it.
in bombarding atomic nuclei with proton bullets why must the protons be accelerated to high energies if they are to
A 3.77g sample of oxalic acid (H2C2O4x2H2O) was dissolved in enough water to make 1000 mL of solution. Then 17.15mL of this oxalic acid solution was titrated to the end point with 22.05mL of an unknown sodium hydroxide soloution.
How many grams of copper are in the necklace? 3. If 18-karat gold has a density of 15.5 , what is the volume in cubic centimeters?
natural gas is primarily methane ch4 and is used to heat homes. a typical home is approximately 2000 ft2 and the
if a sample containing 2.11 ml of nitroglycerine density 1.592 gml is detonated how many total moles of gas are
Write a balanced chemical equation showing the function of the peroxide. In your equation identify the oxidizing agent and the reducing agent
Calculate the new vapor pressure of water at the same temperature when 740 torr of dry air is added to the container in which the liquid water is held. What is the percent change?
Find the volume of a molar solution and What volume of a 2.00 molar solution of sulfuric acid, H 2 SO 4 , is required to react with 250.0g of magnesium carbonate, MgCO 3 , according to the following equation?
Important information about Heat of Reaction, The combustion of butane produces heat according to the equation 2C4H10(g) + 13O2(g) --> 8CO2(g) + 10H2O(l) deltaHrxn= -5314kJ
If 529 g of C6H12O6 react, how many moles of water will be produced?
A 25:75 mixture of acetone:toluene is heated to 70 C at a pressure of 760 mmHg. What is the total vapor pressure of the system? Is the system a liquid below boiling, at boiling, or a gas?
How many mLs of H2 gas, collected by water displacement, are produced by the reaction of 0.500 g of Mg metal with an excess of HCl, at an atmospheric pressure of 750 torr and a temperature of 25.0 C? The vapor pressure of water at 25.0 C is 23.8 t..
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