Other Chemistry Answers

hydrogen gas is generated when acids come into contact with certain metals. When excess hydrocloric acid reacts with 2.5 g of Zn (the metal product is Zn^(2)), what volume of hydrogen gas is collected at a pressure of 0.93 atm and a temperature of 22\deg C?

ulate the work done when 50.0 g of tin dissolvesin excess acid at 1.00 atm and 25°C: Sn(s) +2H+(aq) Sn2+(aq) +H2(g) [Molar mass of tin 118.7 g]

Draw structures for the following compounds
i) ethyl methyl ketone
ii) 2- methyl propanol
iii) 2- methyl, 3- heptanone

Differentiate between Primary, secondary and a tertiary alcohols and draw three structures for each type of alcohol as an example

i) primary alcohol
ii) secondary alcohol
iii) tertiary alcohol

You are the public health officer in the water treatment facility for a city of 95,000 people. A concentration of 1.0 ppm of fluoride in the drinking water is sufficient for the purpose of helping to prevent tooth decay. The compound normally chosen for fluoridation is the same as found in some toothpaste: sodium fluoride, NaF. Calculate how many kilograms of sodium fluoride you will need to purchase in order to fluoridate the cities water supply for one year based upon your estimate that the average yearly consumption of water is 110 gallons per person.

What is the concentration (M) of sodium ions in 4.57 L of a 1.25 M Na3P solution?

Suppose that the pressure in an automobile tire is 2.30 atm at a tenperature of 20.0 degree celsius. What will the pressure in the tire be if after 10 miles of driving the temperature of the tire increases to 47.0 degree celsius

Potassium (atomic mass = 30.19 amu) has three isotopes with masses 38.9367 amu, 39.9640 amu, and 40.9618 amu. The abundance of the last isotope is 6.73%. Estimate the abundances of the other two isotopes

A 25.00 mL sample of 0.379 M nitric acid (HNO3(aq)) is titrated with 12.00 mL of 0.573 M lithium hydroxide (LiOH(aq)). Determine the amount of [H+(aq)] remaining in the flask and pH of the solution after reaction.

A 0.20 M solution of hydrofluoric acid (HF(aq)) has a pH of 3.96 at 25 oC. Calculate the Ka and Percent Ionization of hydrofluoric acid.