Ca(s)   +   2HCl(aq)   -->   CaCl2(aq)   +   H2(g) How many mL of 2.34 M HCl are required to react with 2.95 g of calcium? Enter only the numeric value for your answer (no units).

A student is trying to determine the concentration of an acetic acid (HC2H3O2) solution. They place 10.00 mL of the solution in a flask and titrate it with a 0.250 M NaOH solution. At the endpoint of the titration, they find that they have used 22.31 mL of the NaOH solution. Based on this information answer the following questions in the answer box provided. a) How many moles of NaOH are used to reach the endpoint? b) How many moles of acetic acid were neutralized by the NaOH added? c) What is the molar concentration (M) of the original acetic acid solution?

According to the following reaction, what volume (in mL )  of 1.24 M KCl solution is required to react exactly with 50.0 mL of 1.39 M Pb(NO3)2 solution?2 KCl(aq) + Pb(NO3)2(aq) → PbCl2(s) + 2 KNO3(aq) Write your numerical answer without unit inside the box. The answer should be in three Significant figures and in standard not scientific notation.

4. Calculate the calculate the mass of precipitate formed from 5.0 g of strontium chloride. Li3PO4(aq) → Sr3(PO4)2(S) + LiCl(aq) _SrCl₂(aq) + 5. What mass of aluminum hydroxide in needed to neutralize 5.00 g of hydrochloric acid? Al(OH)3(s) + _HCl(aq) → ___AlCl3(aq) + _H₂O(1) 195

How many moles of Agl will be formed when 75.0 mL of 0.300 M AGNO: is completely reacted according to the balanced chemical reaction: 2 AGNO:(aq) + Cal:(aq) – 2 Agl(s) + Ca(NO:):(aq) STARTING AMOUNT *( ) 6.022 x 1028 0.0450 0.300 75.0 1 234.77 0.250 1000 169.88 22.5 0.001 0.0225 2 mL Agl mol AGNO: g Agl mol Agl mL AGNO: g AGNO: MAGNO. LAgl LAGNO:

Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are mixed. If a precipitate will form, enter its empirical formula in the last column. Does a precipitate form when A and B empirical formula of solution A solution B precipitate are mixed? lead(II) nitrate potassium sulfate yes no potassium sulfide iron(II) chloride yes no potassium hydroxide iron(II) nitrate О yes no

1. A student was asked to react silver nitrate with sodium during a stoichiometry lab. The student react 12.3 g of silver nitrate with 7.83 g of sodium sulfate to produce the following products.  Na2SO4(aq) + 2 AgNO3 (aq) -> Ag2SO4(s) + 2 NaNO3(aq) a) predict the mass of percipitate that the student should obtain.

Consider the following unbalanced equation: Zn (s) + HCl (aq) → ZnCl2 (aq) + H2 (g) What concentration of zinc chloride solution is produced when 0.5065 g of zinc is reacted with 100.0 mL of 0.1260 M hydrochloric acid ? (Assume the total volume of solution is 100.0 mL)

Strontium chloride and sodium fluoride react to form strontium fluoride and sodium chloride, according to the reaction shown. SrCl₂ (aq) + 2 NaF(aq) → SrF₂(s) + 2 NaCl(aq) What volume of a 0.210 M NaF solution is required to react completely with 281 mL of a 0.500 M SrCl₂, solution? volume: How many moles of SrF, are formed from this reaction? moles of SrF₂: mL mol