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1. Write the name and chemical formula of the following compound containing Magnesium and Bromine? Write the name and charge of the cation. Write the name and charge of the anion.
2. What is the name for the following compound, Fe3(PO4)2? (2 points) Calculate Molecular weight. Show work
3. 25.0 mL of 0.7 M NaOH is neutralized by 51 mL of an HCl solution. The molarity of the HCl solution is
4. Calculate the pressure, in atmospheres, of 4.78 mol CO(g) in a 4.5 L tank at 50 degrees C
5. A gas at a temperature of 100 degrees C occupies a volume of 165 mL. Assuming constant pressure, determine the volume at 20 degrees C. Show your work.
You need to produce a buffer solution that has a pH of 5.06. You already have a solution that contains 10 mmol (millimoles) of acetic acid. How many millimoles of acetate (the conjugate base of acetic acid) will you need to add to this solution? T..
A 13-g sample of calcium reacts with bromine to form 24g of calcium bromide. How many grams of bromine are used in the reaction?
The temperature of the water rose from 25.00 degree C to 28.21 degree C. Assuming all the heat from the metal was transferred to the water, calculate the specific heat of the metal.
Detrmine What mass of lithium (in g) is needed to react completely with 57.9 mL of Nitrogen gas at Standard atmospheric conditions?
An unknown radioactive substance has a half-life of 3.20 hours. If 46.0 g of the substance is currently present, what mass was present 8.00 hours ago
Identify which element is oxidized and which element is reduced in the following: 4NaCl + 2H2SO4 + MnO2 à 2Na2SO4 + MnCl2 + Cl2 + 2H2O
The solution is filtered, and a 60.00mL sample titrated with HCl requires 11.13mL of 9.78×10?2 M HCl to reach the end point. Calculate Ksp for Ca(OH)2
When a metal was exposed to light at a frequency of 3.94× 1015 s-1, electrons were emitted with a kinetic energy of 5.80× 10-19 J. What is the maximum number of electrons that could be ejected from this metal
Make sure to clearly show all reagents used and the structure of the product formed in each step. Use wedge and dash bonds to indicate the correct stereochemistry in the...
Calculate the entropy change when 5.00 mol of argon expands reversibly at constant temperature (298 K) from a pressure of 10.0 to 1.00 atmospheres. Assume ideal gas behavior
Twenty grams of a solute are added to 100g of water at 25C. the vapor pressure of pure water is 23.76 mmHg, the vapor pressure of the solution is 22.41 torr.
If a buffer solution is 0.150 M in a weak acid (Ka = 8.6*10^-5) and 0.510 M in its conjugate base, what is the pH?
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