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15.0 ml of 3.7 M NaOH is diluted to 750mL, what is the final molarity

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1) 15.0 ml of 3.7 M NaOH is diluted to 750mL, what is the final molarity?;2) 47.9 grams of Na reacts with water according to the following equation.;2 Na (s) + 2 H2O (l) 2 NaOH (aq) + H2 (g);2a) Find the moles of NaOH produced.;2b) If the resulting solution has a volume of 2.50L, find the molarity of the resulting NaOH;solution.;2c) find the pH of the resulting NaOH solution.;2d) if the H2 gas was collected at 1ATM and 32.0 OC, how many liters of H2 gas would we;collect?;3) 75.0mL of 0.443 M MgCl2 reacts with AgNO3, how many grams of AgCl could be made?;MgCl2 (aq) + 2 AgNO3 (aq) Mg(NO3)2 (aq) + 2 AgCl (s);4) A 30.0mL sample of nitric acid (HNO3) is titrated with 24.97mL of 0.211 M Ca(OH)2.;2 HNO3 (aq) + Ca(OH)2 (aq) 2 H2O (l) + Ca(NO3)2 (aq);4a) What is the molarity of the original acid solution?;4b) calculate the pH of the nitric acid.;5) A 350.0mL sample of oxygen at 1750 mmHg and 200.0 OC reacts with silicon to form silicon;dioxide. What mass of silicon dioxide can I collect?;O2 + Si SiO2;6) A 12.255g sample of gas is put into a 2.000 L cylinder at 3000 mmHg and 25.0 OC;6a) what is the molar mass of the gas?;6b) Which of the following gases is it: CH4: N2: O2: H2: F2: C

 

Paper#15762 | Written in 18-Jul-2015

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