Limewater, a weak solution of calcium hydroxide, Ca(OH)2(s), is used to detect the presence of carbon dioxide gas. Suppose that you are given a solution that contains 8.7 × 1019 formula units of calcium hydroxide. What amount in moles of calcium hydroxide is in the solution?

Q: A chemist prepares a solution of iron III bromide FeBr3 by measuring out 3.00g of FeBr3…

A: Answer : mole  = mass / molecular weight molarity  = mole * 1000/ volume  (ml) molecular weight of…

Q: 10.8 mL of 0.25 M HCl(aq) reacts with an excess of Mg(OH)2(aq), what mass of magnesium chloride…

A:

Q: A student weighs an empty beaker at 85.301 g. A sample of Na2SO4·??H2O is added to the beaker, and…

A: Mass of empty beaker = 85.301 g  Mass of beaker + hydrated salt = 86.607 g  Mass of beaker +…

Q: While investigating mole ratios, a group of students collected data for the chemical reaction 2…

A: Given, 2NaOH(aq) + CaCl2(aq)→ 2NaCl(aq) + Ca(OH)2(s) mass of NaOH react = 3.00 g mass of CaCl2 react…

Q: chemist prepares a solution of magnesium bromide (MgBr,) by measuring out 1.8 g of me mark with…

A:

Q: You have a concentrated solution  of 5.00 M NaOH.  If you dilute 395.2 mL of this solution with…

A:

Q: A chemist adds 150.0mL of a 0.0013/molL copper(II) fluoride CuF2 solution to a reaction flask.…

A:

Q: A chemist prepares a solution of magnesium bromide (MgBr₂) by measuring out 45. mg of MgBr₂ into a…

A:

Q: A chemist prepares a solution of iron III  chloride    FeCl3    by measuring out  0.40g  of…

A: Given : mass of FeCl3 dissolved = 0.40 g And volume of solution prepared = 100 mL = 0.100 L…

Q: (b) A student knew that calciun hydroxide could be made by adding calcium to water. The student…

A:

Q: Calculate solution concentration in molarity units. A student weighs out 6.49 g of FeSO4, transfers…

A:

Q: When the following solutions are mixed together, what precipitate (if any) will form?Note: Leave the…

A: → If in the product we will get solid , it means ppt occur .a) NaOHaq+KNO3aq→NaNO3+KOH…

Q: A solution is prepared by dissolving 37.5 g of barium hydroxide, Ba(OH)2, in a small amount of water…

A:

Q: A chemist prepares a solution of iron II bromide   FeBr2   by measuring out 17.mg of FeBr2 into a…

A:

Q: Suppose 0.506 g of nickel(II) bromide is dissolved in 200. mL of a 61.0 m M aqueous solution of…

A: Given :

Q: A student takes a 25.0 mL volume from a stock solution of 1.14 mol L-1 magnesium chloride. How many…

A:

Q: In a student experiment, the empirical formula of a copper halide was found by adding aluminum metal…

A: Empirical formula is the simplest chemical formula that represents a compound. It is related to…

Q: 6. While investigating mole ratios, a group of students collected data for the following chemical…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: The balanced chemical equation is P₄(s) + 6 Cl₂(g) → 4 PCl₃(g). What is the mass in grams of…

A:

Q: by measuring out  78.8mg  of  FeBr3  into a  100.mL  volumetric flask and filling to the mark…

A: Given data :  Mass of FeBr3 = 78.8 mg = 0.0788 g (1 g = 1000 mg )  Molar mass of FeBr3 = 295.6 g/mol…

Q: In an experiment, a solution is prepared by dissolving 55.0 g NaOH in water until the final volume…

A: Given mass of NaOH = 55 g Volume of solution = 300 ml = 300 × 10-3 L

Q: You are given solutions of HCl and NaOH and must determine their concentrations. You use 30.0 mL of…

A: The given problem can be solved by the following steps: 1. Calculation of molarity of NaOH from the…

Q: 4. If 16.0 mL of water are added to 31.5 mL of 0.586 M Ba(OH)₂ (aq), what is the new solution…

A: To find the new molarity of the given solution after adding water.

Q: A chemist adds 2.00 L of a 5.9 × 10M mercury(II) iodide (HgI₂) solution to a reaction flask.…

A:

Q: A solution containing 405.6 mM CaCl₂ is combined with an equal volume of 176.1 mM NaCl. What is the…

A: Ionic compounds ionises completely in solution.MmNn --> mM+n + nX-m  [Mn+] = m[MmNn] [Xm-] =…

Q: A chemist prepares a solution of potassium bromide    KBr    by measuring out  0.17g  of  KBr…

A: Given : Mass of KBr dissolved = 0.17 g Volume of final solution = 300 mL = 0.300 L…

Q: A chemist prepares a solution of potassium chloride   KCl    by measuring out  0.23g  of  KCl…

A:

Q: A total of 10.0 g of potassium permanganate, an ionic compound with chemical formula KMnO4, is…

A:

Q: A chemist prepares an aqueous solution of sodium hydroxide. The solution contains 120.0g of NaOH and…

A:

Q: What type of chemical reaction is illustrated in the following example?  2 Mg (s) + O2 (g) ⟶ MgO…

A: The type of Chemical Reaction illustrated in the following example is -

Q: A diluted solution of sulfuric acis , H2SO4, has a density of 1.523 g/mL. The solution contains 50.0…

A:

Q: If you take 51.9 grams of calcium chloride (CaCl2) and dissolve it in 185.2 mL of water, what is the…

A:

Q: You have 6.79 mL of  a 0.415 M aqueous solution of Sodium Bicarbonate (NaHCO3). You add all of this…

A:

Q: 12.35 g of table salt, sodium chloride, is added to 76.0 mL of water. What is the concentration of…

A: Mass of table salt=12.35g Volume of water=76.0mL = 0.076litere (1 L = 1000ml) Concentration of…

Q: A sample of 7.89 g of Mg(OH)2 is added to 24.6 mL of 0.190 M HNO3. How many moles of Mg(NO3)2 are…

A:

Q: volume of the solution

A: According to the question, a solution is formed by dissolving 2.000 kg of sugar in 1.000 kg of…

Q: Solid iron can be dissolved by hydrochloric acid in order to produce hydrogen gas according to the…

A:

Q: A sample of 18.5 grams of sodium phosphate is weighed out on a balance and prepared to a volume of…

A: