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write the corresponding ionic and net ionic equations after Balancing these given equations: a. HClO4 + Mg(OH)2 → , b. HBr + NH3 →,c. Ba(OH)2 + H3PO4 →?
Identify the acid-base conjugate pairs in each of these given reactions: a. HCO3- + HCO3- ? H2CO3 + CO3-2, b CH3COO- + HCN ? CH3COOH + CN-,c. HClO + CH3NH2 ? CH3NH3+ + ClO-,d. CO32- + H2O ? HCO3- + OH-, e. H2PO4- + NH3 ? HPO42- + NH4+?
Determine how many moles of carbon dioxide should be added to the system to bring the equilibrium carbon monoxide concentration to 0.743 mol/L
Calculate the binding energy of the 2s electron in iron and calculate the binding energy of the 2s electron in iron. Does the new energy agree better with experiment?
Using a solution containing 0.302 grams of an antibiotic has an osmotic pressure of 8.34 mmHg At 23.6°C, 0.500 L. calculate its molecular mass.
Compute How many mg of the compound P do you have in 20ml of 4% (w/v) solution of P
Assemble the alcohols (have the formula of C4H10) in the order of increasing reactivity with concentrated HCl.
Compute the molarity of a solution prepared by dissolving 15.2 grams of CaCl2 in H2O with a solution volume equal to 5.00 x 10² millimeters.
Calculate kc for the reversible reaction and determine what is the activation energy
Using a Sample of 0.3991 grams of an unknown monoprotic acid, HA, which combines with Sodium hydroxide according to the balanced equation HA + NaOH ® NaA + H2O when 35.30 mL of 0.1086 M Sodium hydroxide is required to titrate the acid to the equiv..
Multiple choice questions in Radioactive Decay - electron emitted from the nucleus during some kinds of radioactive decay is known
What is the final concentration of Na+ after adding 230 ml of water to a stock solution of 2.5M 420.0 ml Trisodium phosphate?
Using a sample of 30.0 mL of Kr(g), is at 25°C and 756 mmHg. Calculate the new volume if the temperature is decreased to -125°C and pressure is decreased to 325 mmHg .
To find the % by mass of a compound in a given sample - Determine the percent by mass of calcium carbonate in the sample. State any assumptions.
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