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1. ### A solution of oxalic acid, a diprotic acid, is used to titrate a 16.22 mL sample of a 0.5030 M KOH solution.?

moles OH- used = (0.01622 L) (0.5030 mol/L) = 8.16 x 10^-3 mol How many...

2 Answers · Science & Mathematics · 13/05/2007

2. ### Does 10 x 2.2 equal to 22 if i was using significant figures or would it be 22.0?

...would give it two significant digits. In such a case the answer will be 22. 10. x 2.2 = 22 Under NO circumstances would the answer...

2 Answers · Science & Mathematics · 28/08/2016

3. ### Stoichiometry: Why not same answer when use 1 mol = 22.4 L instead of going mol to g to ml ?

The conversion 1mol = 22.4 L only applies when you are dealing with an ideal gas. You have to use d=m/v to convert 56 mL of POCl3 to grams and then to moles.

3 Answers · Science & Mathematics · 11/12/2006

4. ### At STP, 22.4L of O2 is used, how many liters of CO2 is made?

... of gas. SO, start with what you know, use the correct mole ratio, and then use STP units to get volume of CO2. 22.4L-O2 x (1mol-O2)/(22.4L-O2) x (4mol-...

1 Answers · Science & Mathematics · 23/06/2008

5. ### during an acid base titration 22.0 mL of 0.5M NaOH were used to titrate 30 mL of an unknown concentration acid

...end up having no reactants left, only products. So using the formula M=mol/L, you can manipulate it to find that you have .011 mol...

4 Answers · Science & Mathematics · 04/07/2007

6. ### What is the pH of a solution that contains 0.22 M HC2H3O2 and 0.22 M C2H3O2-. Use Kb = 5.6 x 10-10, for C2H3O2?

... equation: pH = pKa + log ([con.base] / [acid]) pH = 4.75 + 0.22/0.22 pH = 4.75 + log 1.0 pH = 4.75 + 0 pH = 4.75.

1 Answers · Science & Mathematics · 03/08/2011

7. ### If you were asked to convert 4.2 × 10^22 atoms of aluminum to moles, which of the following should you use for?

4.2 x 10^22 atoms divided by 6.022 x 10^23 atoms/mole = the answer you seek

1 Answers · Science & Mathematics · 13/10/2011

8. ### If 22.5 liters of O2 at STP were produced by the electrolysis of water using a current of 3.20 amps, how many?

...+ + O2 + 4e-, so 1 mol O2 requires 4 x 96,500 C 22.5LO2 x 1molO2/22.4LO2 x 4EqWtO2/1molO2...

2 Answers · Science & Mathematics · 02/02/2014

9. ### how would you use 1.75 M KCL and pure water to make a 22.5 liter solution of .025 molar KCL?

... this equation V can be either in mL or L but must be used consistently throughout the problem. M is in moles per liter. V1 = ?; M1 = 1.75 M; V2 = 22.5 L; M2 = 0.025 M. Solve the equation for V1...

1 Answers · Science & Mathematics · 04/03/2010

10. ### When 22.1 g of benzene and an excess of HNO3 are used, what is the theoretical yield of nitrobenzene?

...1, with Y being the theoretical yield. Cross-multiply N x 22.1 and then divide by B, using a calculator, and your answer will be Y in grams. To get...

1 Answers · Science & Mathematics · 09/10/2009