Other Chemistry Answers

Farmer Brown planted 15 more rows of turnips than carrots. If the number of turnip rows was 35 less then twice the number of carrot rows, how many rows of each did Farmer Brown plant?

A salt unknown containing ferrous ion was dissolved and diluted to 250.0 mL. A 25.00 mL aliquot of the ferrous ion solution was titrated with 0.01450 M potassium permanganate solution, and the mean of three acceptable, corrected titrations volumes was 14.43 mL. Calculate the mass of iron in the 250.0 mL solution.

Give your answer to 4 places after the decimal. Do not enter units.

A 3.7122 g sample of an unknown salt containing ferrous ion was dissolved and diluted to 250.0 mL. Repeat 25.00 mL samples of the total solution were titrated with 0.01860 M KMnO4 solution, and the mean of three accepted corrected titration volumes was 19.00 mL. Calculate the %w/w of iron in the original sample mass.

State your answer to 2 places after the decimal place. Do not enter units.

A salt unknown containing ferrous ion was dissolved and diluted to 250.0 mL. A 25.00 mL aliquot of the ferrous ion solution was titrated with 0.01450 M potassium permanganate solution, and the mean of three acceptable, corrected titrations volumes was 14.43 mL. Calculate the mass of iron in the 250.0 mL solution.

Give your answer to 4 places after the decimal. Do not enter units.

As gases are in varying rates of motion and have no defined shape or volume, how do we compare gases. In order to compare gases, there must be Standardized conditions such as pressure, temperature, and amount of gas molecules (in moles). What is the defined pressure and temperature (STP) for comparing gases?

If a 0.12196 M solution of KMnO4 is titrated with a salt containing ferrous ion and 19.04 mL is required to reach the end point, calculate the moles of potassium permanganate used in the titration.

Give your answer to 4 places after the decimal. Do not enter units.

Calculate the millimoles of solute:
901 mL of a solution containing 5.49 ppm CaCO3

A sample of neon occupies a volume of 641 ml at STP. What will be the volume of the neon when the pressure is reduced to 93.3 kPa?

Balance the equation __H2(SO4)+__B(OH)3 __B2(SO4)3+__H2O

Calculate the pH of an avid solution containing0.05m HNO3