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If a solution contain Ag^+ and Pb^2+ ions. The addition of 155.0 mL of 1.50 M NaCl is merely enough to precipitate all the Ag+ and Pb^2+ ions. If the total mass of the precipitate is 32.8g define how many grams of AgCl is the precipitate?
How much energy (in J) is required to change the temperature of 1.00 kg Fe from 25.0°C to 1515°C? The specific heat capacity of iron is 0.449 J/g*°C.
a gas mixture with a total pressure of 770 mmHg contains each of the following gases at the indicated partial pressures: CO2, 122 mmHg; Ar, 209 mmHg; and O2, 191 mmHg. The mixture also contains helium gas. what is the partial pressure of the heliu..
how many grams of water can be produced from the combination of 25 grams of hydrogen and 225 grams of oxygen? how much
Draw the predominance diagram (the logarithm of species concentration versus pH). Locate the system points and the approximate pH that satisfies the Proton-Balance Equation for addition of NaHSe to water.c) List the solute species present at pH=5...
Create a MO diagram for H2. Include in this diagram the molecular electron configuration and the bond order and where the Homo(-) Lumo Homo, Lumo (+) is next to the energy level on the diagram.
calculate the ph of a solution prepared by mixing 250. ml of 0.174 m aqueous hf density 1.10 gml with 38.7 g of an
Although acetanilide and phenacetin aren't appreciably acidic, acetaminophen (like aspirin) is a stronger acid than water. what problem would you encounter if the unknown component were acetaminophen rather than acetanilide or phenacetin
Determine how many significant figures are there in the Fahrenheit result when 7.02C converted to Fahrenheit scale,?
Calcium hydride reacts with a vast excess of water to form calcium hydroxide and hydrogen gas. How many grams of calcium hydride
Given the following balanced reaction, if a mixture of 1.50 mol of Al and 3.00 mol of Cl2 are allowed to react, how many moles of AlCl3 are formed, assuming a 75% yield?
Calculate the standard potential for this reaction. Normally, X is Fe. Here it is some unknown metal, allowing for somewhat random values for ΔGo.
At what wavelength do you measure the change in absorbance to assay for enzyme X? Does the absorbance increase or decrease over time?
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