How many moles of K ions are present in 343 mL of a 127 M solution of K 3 PO 4

# How many moles of k ions are present in 343 ml of a

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45.How many moles of K+ions are present in 343 mL of a 1.27 M solution of K3PO4?a..436b.1.31c.0.145d.3.70e.11.146.What is the empirical formula of a compound that contains 1.10 g of Ti and2.44 g of Cl?47.If it takes 55.5 mL of 0.200 M H3PO4(aq) to titrate 250.0 mL of a solution of Ca(OH)2(aq), what is the concentration of the Ca(OH)2solution?2H3PO4(aq) + 3Ca(OH)2(aq) Ca3(PO4)2(s) + 6H2O(l)48.You mix 60.0 mL of a 1.0 M silver nitrate solution with 25.0 mL of a 0.80 M sodium chloride solution. What massof silver chloride should form?AgNO3(aq) + NaCl(aq) AgCl(s) + NaNO3(aq)49.Order these compounds in order of increasing carbon-carbon bond strength:HCCH, H2CCH2, H3CCH3.a.HCCH < H2CCH2< H3CCH3b.H3CCH3< H2CCH2< HCCHc.H2CCH2< HCCH < H3CCH3d.All three compounds should have carbon-carbon bonds with the same strength and length.
50.If 120.0 g of carbon are used to form 43.2 g of CO (28.0 g/mol) in the reaction below, what is the percent yieldfor the following reaction:SiO2(g) + 3C(s) SiC(s) 2 CO(g)51.A technician wants to dispose of 2.00 L of a 0.500 M solution by diluting it with water and pouring it down the drain. For this particular substance, this is legalif that final concentration of the contaminant is less than 1.00 mM. Howmuch solution will be produced when headds enough water to get the proper concentration?52.Which of the following molecules or ions will exhibit delocalized pi bonding?NO2O3CO3253.What mass of hydrogen is produced by the reaction of 4.73 g of magnesium with 1.83 g of water?Mg(s) + 2H2O(l) Mg(OH)2(s) + H2(g)a.0.102 gb.0.389 gc.0.0485 gd.0.203 g54.How many oxygen atoms are in 3.00 g of sodium dichromate, Na2Cr2O7?
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