Determine the molarity of 70.5% perchloric acid (HClO4) with a density of 1.67 g/mL? Respond with...
Determine the molality of 70.5% perchloric acid (HClO4)
When aqueous solutions of perchloric acid and calcium hydroxide are mixed, the following reaction occurs: 2HClO4 + Ca(OH)2Ca(ClO4)2 + 2 H2O If 32.9 mL of a 6.89×10-2 M Ca(OH)2 solution are required to react with 22.0 mL of HClO4 , what is the molarity of the HClO4 solution? Give your answer to three significant figures.
How many grams of perchloric acid, HClO4, are contained in 31.3 g of 72.7 wt% aqueous perchloric acid? How many grams of water are in the same solution?
A 0.4188-g sample of primary-standard Na2Co3 was treated with 39.50 mL of dilute perchloric acid. The solution was boiled to remove Co2 , following which the excess HclO4 was back-titrated with 9.35 mL of dilute NaOH . In a separate experiment, it was established that 26.75 mL of HCLO4 the neutralized the NaOH in a 25.00-mL portion. Calculate the molarities of HCLO4 the and NaOH .
What is the molarity when 47 g of KCl dissolved in enough water to give 375 ml of solution? Provide numeric answer (no letters or units) with correct number of sig figs. (for example: if your answer is 1.234 M, you must type it as 1.234E0.) Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimale.g. 2.SES for 2.5 x 10" Numeric Answer
USE CORRECT SIG FIGS AND SCIENTIFIC NOTATION Determine the molar (M) concentration of a solution made by dissolving 7.714E1 g of CaCl2 in sufficient water to make 250.0 mL of solution. Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimale.g. 2.5E5 for 2.5 x 105) Numeric Answer: Determine the number of grams of potassium permanganate present in 5.25E1 mL of a 0.250 M KMnO4(aq) solution. 0 Respond with the...
How many atoms of hydrogen are in 2.22E+1 g of methane? Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5e5 for 2.5 x 10") How many moles of oxygen atoms are in 5.3E-1 moles of CO2? Only give the numeric value of your answer. Don't include the units. .- Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit...
Determine the molarity of a sodium sulfate aqueous solution that is 77% by mass. The density of the solution is 1.67 g/ml
20.2 percent by mass hydrochloric acid with a density of 1.096 g/ml, calculate the molarity of the HCl solution
Type your answer in the box. Determine the molarity for the solution that results from tranferring 3.00 ml of 0.750 M solution of copper(II) sulfate and diluting to 10.0 ml. Report your answer to the correct number of significant figures. Do not use scientific notation. Do you know the answer? I know it Think so Unsure No idea