Hint: Write the balanced chemical equation for the dissolution of magnesium bromide first.  Then answer this question: What is the coefficient in front of the solvated anion? Choose one of the following: 0 1 2 3 4

When a 15.2 mL sample of a 0.316 M aqueous nitrous acid solution is titrated with a 0.337 M aqueous sodium hydroxide solution, what is the pH after 21.4 mL of sodium hydroxide have been added?pH =

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Over the course of a reaction, to reach equilibriuma) The molarities of the reactants and products will decreaseb) The molarities of the reactants will increase and the molarities of the products will decreasec) The molarities of the reactants and products will increased) The molarities of the reactants will decrease and the molarities of the products will increase.

Consider the diagram of an aqueous solution of a soluble ionic compound. 2+ Determine which ionic compound is dissolved 2+ in solution. 2+ KCI 2+ СаBr, MgCrO, Ca(CIO,), C

What 4 primary standards can be used to standardize acid solutions and their balanced reactions with HCL

2. Using the procedure described in this module, a student determined the percent KHP in an impure sample of KHP. A 3.150-g sample of impure KHP required 41.50 mL of 0.1352M NaOH solution for titration. (a) Calculate the number of moles of NaOH required for the titration. (b) Calculate the number of moles of KHP present in the impure sample of KHP. (c) Calculate the number of grams of KHP present in the impure sample. (d) Calculate the percent of KHP in the impure sample, using Equation 8. Equation 8: percent KHP in the impure sample, % = ( mass of KHP in the sample,g/ mass of sample analyzed, g) (100%)

Consider the neutralization reaction 2 HNO, (aq) + Ba(ОН), (аq) — 2 Н, О() + Ва(NO,), (aq) A 0.120 L sample of an unknown HNO, solution required 30.1 mL of 0.250 M Ba(OH), for complete neutralization. What is the concentration of the HNO3 solution? concentration: M

Please answer all the three the questions as soon as possible Thank you so much! 3. Solid silver nitrite is slowly added to 125 mL of a sodium cyanide solution until the concentration of silver ion is 0.0523 M. The maximum amount of cyanide remaining in solution is  M.