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Write the name and chemical formula of the following compound containing Sodium and Oxygen. Write the name and charge of the cation . Write the name and charge of the anion.
A solution of ammonia and water contains 3.40×1025 water molecules and 7.20×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
Explain the effect of the following experimental errors on your results: a) You add hexane to the reaction flask instead of 1-hexene b) You use 3% hydrogen peroxide instead of 30% c) You forget to add potassium carbonate in the seperation step.
What osmotic pressure would develop across the membrane if the temperature is 26.0 degrees Celcius?
How to find the equivalent weight of a compound?
How many mL of SO2 gas (density= 2.6288 kg m^-3) are requied to react with 125 mL of .20 M potassium permaganate solution
Classify each of the following redox reactions as a combination, decomposition, or displacement reaction, give a balanced molecular equation for each, as well as total and net ionic equations for parts (b) and (c), and identify the oxidizing and r..
The activation energy for a reaction is 37.6 kJ/ mol. The rate constant for the reaction is 5.4 x 10^3 at 45 degrees Celcius. Calculate the rate constant at 145 degrees celcius
What is the pH of a solution of 25.0mL of 1.35x10-3M HCl(aq) that has been titrated with 10.73mL of 1.00x10-3M NaOH? Assume 25°C.
A solution is made from ethanol, C2H5OH, and water is 1.60 m in ethanol. How many grams of C2H5OH are contained per 230. g of water?
Equilibrium concentration for N2O4=2NO2 is 4.6*10-3. the mixture contains 8.0*-2, what is the equilibrium of N2O4?
What is the wavelength of light emitted when an electron in a hydrogen atom undergoes a transition from energy level n=4 to n=2?
on venus the surface atmospheric pressure is about 90 earth atmospheres. what is the venusian atmospheric pressure in
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