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Balance the following equations.
1. Fe + O2 → Fe2O3
2. CS2 + Cl2 → CCl4 + S2Cl2
3. Fe + H2O → Fe3O4 + H2
what happen to the amount of miles of SO2 when the total pressure on the equilibrium reaction
2SO2 + O2 > 2SO3
1. The empirical formula of a compound of Carbon and Hydrogen is CH2. Its molar mass is 100g/mol. Determine the molecular formula of the compound.
Solve the ff problem. Refer to the given mass numbers in computing for the molar mass.
Molar Numbers:
Fe= 55.85
O=16
C=12.01
S=32.07
Cl=35.45
H=1.01
2. In a certain experiment 30.0g CS2 is used in the reaction. The experiment is performed and CCL4 is collected and its mass is found to be 16.3g. What is the percentage yield for the reaction?
Solve each of the following problems. Follow Polya's four stages of problem solving in your solution.
10. You take a sheet of paper and tear it in half, then place the two2 pieces of paper on top of one another and tear them in half. This process yields four pieces of , paper. You place them on top of one another and tear them i half again. Imagine continuing this process through 22 such tears. How many layers are now in the pile of paper?
11. Pilar has six daughters and no son. Some of her daughters have six daughters, and the rest have none. Bertha has a total of 30 daughters and granddaughters, but she has no great-granddaughters. How many of Pilar's daughters and granddaughters. have no daughters?
12. On a balance scale, two spools and one thimble balance eight buttons.Also, one spool balances one button. How many buttons will balance one spool?
Calculate the molality of a 6.55 kg sample of a solution of the solute CH 2 Cl 2 dissolved
in the solvent acetone (C 3 H 6 O) if the sample contains 876 g of methylene chloride
Write one dimensional array C++ program that ask to the user to enter the array size
and reads n integers, finds the largest of them, and count its occurrences. Suppose
(20 points) KWIC is an acronym for ”Key Word In Context”. This is the most common format for
concordance indexes in documents. It is also the starting point for most spelling and grammar checkers
in word processors. You will use the classes in the C++ Standard Library to write a program that
creates such an index for text read from the standard input.
Begin by writing a C++ function that has a single argument: a string containing a file name and
returns a reference to a list of stings. Open the file and then read each word in the text file into a
C++ STL list of strings. Return
A person plugged in a 1250 W hair dryer and a 2500 W electric heater in the same 120 V outlet
protected by a 7.5 A circuit breaker. Will the breaker trip?
A cell has a terminal voltage of 50.0 V for a current of 10.0 A and 54 V for a current of 6.0 A. Find the electromotive force and internal resistance of the cell.
