suppose that 0.3562 g of na2c2o4 is dissolved in a 250 mL volumetric flask. if 10...

suppose that 0.3562 g of na2c2o4 is dissolved in a 250 mL volumetric flask. if 10 mL of this solution required 48.36 mL of kmno4 to reach the endpoint what is the molarity of the permanganate solution

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queen_honey_blossom answered 3 years ago

0.1200 g of potassium dichromate primary standard is dissolved, quantitatively transferred into a 250-mL volumetric flask...

0.1200 g of potassium dichromate primary standard is dissolved, quantitatively transferred into a 250-mL volumetric flask and diluted to volume. 0.3000 g an unknown iron ore sample was dissolved in hydrochloric acid, treated with stanous chloride and mercury(II) chloride, quantitatively transferred to a 100-mL volumetric flask and diluted to volume. 25.00 mL of the unknown iron(II) solution was pipetted into 500-mL Erlenmyer flask and titrated with the potassium dichromate solution. 28.00 mL of potassium dichromate is required to reach the...

A compound with molecular mass = 292.16 g/mol was dissolved in a 5.000 mL volumetric flask....

A compound with molecular mass = 292.16 g/mol was dissolved in a 5.000 mL volumetric flask. A 1.000 mL aliquot was withdrawn, placed in a 10.000 mL flask and diluted to volume. The apparent absorbance of the diluted solution at 340 nm was 0.827 in a 1.000 cm cuvette. To check for a possible stray light effect, this sample was diluted by exactly a factor of 2; the apparent absorbance was now 0.421. A reagent blank showed negligible absorbance. The...

A 2.2222 gram sample containing soda ash is dissolved in a 100 mL volumetric flask. A...

A 2.2222 gram sample containing soda ash is dissolved in a 100 mL volumetric flask. A 24.98 mL aliquot is analyzed and required 45.67 mL of 0.1234 M HCl, before it was boiled, cooled, and back-titrated with 8.88 mL of 0.0987 M NaOH. What is the percent Na2CO3?

1.25-g of BaCl2 is placed in a 4.000 L volumetric flask. Then the volumetric flask is...

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10 mL of bleach with an unknown concentration is added to a 100mL volumetric flask. The...

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Suppose a 250.mL flask is filled with 2.0mol of O2 and 1.6mol of NO . The...

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Suppose a 250.mL flask is filled with 0.20mol of N2 and 1.4mol of O2 . The...

Suppose a 250.mL flask is filled with 0.20mol of N2 and 1.4mol of O2 . The following reaction becomes possible: N2(g)+O2(g)= 2NO(g )The equilibrium constant K for this reaction is 4.94 at the temperature of the flask. Calculate the equilibrium molarity of O2 . Round your answer to two decimal places.

A 10.0 mL sample of liquid bleach is diluted to 100. mL in a volumetric flask....

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If 4.90 g of Na2CO3 is dissolved in enough water to make 250. mL of solution,...

If 4.90 g of Na2CO3 is dissolved in enough water to make 250. mL of solution, what is the molar concentration of the sodium carbonate? Molar concentration of Na2CO3 = ______M What are the molar concentrations of the Na+ and CO32- ions? Molar concentration of Na+ = ______M Molar concentration of CO32- = _______M

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