A Wilton High School senior was applying to college and wondered how many applications she needed to send. Her counselor explained that with the excellent grade she received in chemistry she would...

A Wilton High School senior was applying to college and wondered how many applications she needed to send. Her counselor explained that with the excellent grade she received in chemistry she would...

Example: A 2.00 gram piece of zinc is placed in 2.50 grams of aqueous silver nitrate. a) Write the balanced equation. b) Determine the limiting reagent. c) How many grams of silver...

1 box of cake mix 1 egg 2 cups of flour 1/2 cup of sugar 3 tablespoons of water Assume that you had 1 dozen eggs, 6 boxes of cake mix, 10 cups of flour, 10 cups of sugar,...

How many grams of O2 can be prepared from the decomposition of 4.50 grams of potassium chlorate?

d. Write a balanced equation for this reaction, including (aq) and (s). e. Calculate the mass of precipitate produced when 50ml of .45M potassium iodide solution and 75ml of .55M lead (II)...

A compound is found to contain 16.66 grams of carbon and 3.49 grams of hydrogen. a. Find the empirical formula. (C2H5) b. The molar mass is 87. Find the...

A made up temperature, degrees X, has a relationship with degrees Celsius as follows. Tx=(Tc+10 degrees Celsius) (5 degrees X/ 14 degrees Celsius) The question is to convert 58 degrees...

Combustion of a 0.2000 gram sample of vitamin c (which contains c,h,and 0 Yield 0.2998 g of c02 and 0.0819 g of h20. calculate the empirical formula of vitamin c ?

Find the percentage of water in copper sulfate pentahydrate ?

Ben Franklin showed that 1 teaspoon of oil would cover about 0.50 acre of still water. If you know that 1.0 x 104 m2 = 2.47 acres, and that there are 5.0 cm3 in a teaspoon, what is the thickness (in...

how many molecules of h20 are contained in 150.grams of water

how many moles of co2 are in 10.0 grams of co2how many moles of co2 are in 10.0 grams of co2

Combustion analysis of toluene a common organic solvent gives 3.53 mg of CO 2 and 0.822 mg of H 2 O if the compound contains only carbon and hydrogen what is empirical...

Combustion analysis of toluene a common organic solvent gives 3.53 mg of c02 and 0.822mg of h20 if the compound contains only carbon and hydrogen what is empiri

An empty 3.00 L bottle weighs 1.70 kg. Filled with wine it weighs 4.55 kg. The wine contains 11.0% ethyl alcohol by mass. How many ounces of ethyl alcohol are present in a 400.0 mL glass of...

A typical rate of deposit of dust from unpolluted air is 10.0 tons per square mile per month (30 days). a- What is this dust fall, in milligrams per square meter per hour? b-...

Assume you had a silver sphere with a mass of 1.50 kg. Calculate the diameter of the sphere (in cm). The density of silver is 10.5 g/cm3. The formula for the volume of a sphere is . . . V = 4/3r3...

An average human male breathes about 8.50 X 103 liters of air per day. The concentration of lead in highly polluted air is 7.0 X 10-6 g Pb/m3 of air. Assume that 75% of the lead is present as particles...

A bug travels at the rate of 3.0 miles/hour. How fast is this in m/nsec? Hint: 2.54 cm = 1 inch and 1 mile = 5,280 feet

A cylinder has Diameter = 25.0 mm Calculate its density in g/cm3. Height = 59.0 cm Mass = 38.0 g