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Write net ionic equations for the following molecular equations. HBr is a strong electrolyte. (Include states-of-matter under SATP conditions in your answer. Use the lowest possible coefficients.)
(a) HBr(aq) + NH3(aq) → NH4Br(aq)
(b) 2 HBr(aq) + Ba(OH)2(aq) → 2 H2O(l) + BaBr2(aq)
(c) Pb(NO3)2(aq) + 2 NaBr(aq) → PbBr2(s) + 2 NaNO3(aq)
(d) MgCO3(s) + H2SO4(aq) → MgSO4(aq) + H2O(l) + CO2(g)
56.9 mL of water is added to 24.9 mL of 0.125 M KOH solution. What is the new molarity?
A mixture of 2.0 mol of H2 (g) and 1.0 mol of O2 (g) is placed in a sealed evacuated container made of a perfect insulating material at 25C. The mixture is ignited with a spark and it reacts to form liquid water. Find the temperature of the water.
What is the quantity of moles, of neon gas if 4.87 L is at a pressure of 0.635 atm and the temperature
Consider the flask apparatus in the following diagram, which contains 2.00 L of H2 at a pressure of 380. torr and 1.00 L of N2 at an unknown pressure. If the total pressure in the flasks is 300. torr after the stopcock is opened, determine the ini..
Assuming a temperature of 500 K and expansion against 1. atm of pressure, how much work, in joules, can be done by the system if the octane is completely converted to carbon dioxide and water vapor. What will the enthalpy change be for the process
c6h5nh3cl is a cation chloride salt with acid. a if 50.0 g of c6h5nh3cl are dissolved in water to prepare a solution
Hydrazine, N2H4, is used as a rocket fuel. In the reaction below, if 80.1 g of N2H4 and 92.0 g of N2O4 are allowed to react, which is the limiting reactant?
An unknown gas effuses through a porous barrier at a rate that is 0.752 times the rate of Ar (g) under the same conditions. Which of the following is the unknown gas. Cl2 (g) He (g) O2 (g) N2 (g) H2 (g)
A chemical firm was hired to monitor a nearby lake for possible mercury contamination. Several samples were taken at different locations around the lake, including water samples.
Draw the product for the chlorination of 2-methylbutane that proceeded through a secondary radical
Calculate the number of carbon atoms in 4.56 grams of ethanol (CH3CH2OH).
SLIGHTLY LESS than 100 degrees Celsius, but the final boiling point was AT 100 degrees Celsius. Why should the boiling point rise as the distillation progresses?
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