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Explain why in an aqueous electrochemical cell, nitrate ions never react at the anode, but nitrite ions do
The flow rate of a process stream of hydrogen at 50 degrees celcius and 1800 mmhg, and the value read from the calibration chart is 350 cm^3/s. Calculate the true volumetric flow rate of the gas.
Add electron dots and charges as necessary to show the reaction of potassium and bromine to form an ionic compound.
if each reactant molecule in the above image represents 0.0157 mol and the reaction yields is 89%, how many grams of Si-containing product form?
When extracting caffeine from tea why do you have to use cold NaOH and water vs. room temperature
Complete the following equation that illustrates a Brønsted-Lowry acid/base reaction. Phases are optional.
How can one tell from a reaction diagram whether a reaction is exothermic or endothermic?
Geologists can estimate the age of rocks by their uranium-238 content. The uranium is incorporated in the rock as it hardens and then decays with first-order kinetics and a half-life of 4.5 billion years
How many mmoles of HCl reacted with the Na2CO3? c. Calculate the molarity of the HCl solution.
134 mole of KCl and .167 mole of CaCl2 were dissolved in water. What is the total number of Cl ions in the solution?
A sample of urea contains 1.009 g N, 0.145 g H, 0.432 g C, and 0.576 g O. What is the empirical formula of urea?
The rainwater is mainly composed of NaCl 1 mM and its pH is 4.6. Without using a computer, determine the concentration of Ca2+in runoff water.
An unknown amount of water is mixed with 370mL of a 6M solution of NaOH solution. A 75mL sample of the resulting solution is titrated to neutrality with 50.7mL of 6M HCl.
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