Wednesday
September 17, 2014

Posts by johny


Total # Posts: 25

Chemistry
You are given the following decomposition reaction of ammonia NH3 ---> H2 + N3 unbalanced When you decompose 12.0g of NH3you produce 1.87 g of H2 Calculate the percent yield of H2
April 18, 2013

chemistry
mass of crucible- 26.4574g mass of crucible and hydrated sample- 27.7617g mass of hydrated sample 1.3043g mass of crucible and dehydrated sample- 27.5693g mass of dehydrated sample- 1.1119g mass of filter paper- 0.7089g mass of filter paper and copper- 1.1418g mass of copper...
February 19, 2013

phi103
display all the possible truth values involved with a set of sentences.
February 18, 2013

chemistry
how much heat is required to melt 15 g of ice which is at a temperature of 0 degrees celsius
July 24, 2012

physics
Imagine a car involved in a head-on crash. The driver, whose mass is m, is to be brought uniformly to rest within the passenger compartment by compressing an inflated air bag through a distance sc. Write an expression for the average force exerted on the bag in terms of m, vi...
May 30, 2012

calculus
what happens when Limit as x approaches infinity A) (sqrt(9+10x^2))/(7+9x)
December 1, 2011

Calculus
what happens when the limit goes to infinity 4x-6sqrt(x)
December 1, 2011

sience
why is the pressure more on ground when a person is walking than when he is standing ?
September 28, 2011

science
how does the weight of an object change with in sea change with densities ?
September 28, 2011

physics
can i have multiple choice questions on thermodynamics: relationship between work and heat, the first law of thermodynamic, and the second law of thermodynamic
March 18, 2011

math 117
can someone help me with this radical numbers problem? (2suare root 8)(2-square root 8) would it be 2 square root 4?
August 15, 2010

progamming JAVA
1.Write an algorithm, in English, to solve the following problem. Be sure to include pre- and post-conditions! 2.Problem: Solve X mod Y for all positive integers. Do so without using multiplication or division. 3.What is (7 / 3) + (4 % 5)?
April 17, 2010

Programming JAVA
1. What is 9.9 + (11 % 8)? 2. Write one line that creates a variable named Pickles that can hold an integer and assign it the value of ten.
April 17, 2010

organic
what is the best way to synthesize 4-isopropylbenzonitrile?
March 2, 2009

organic
what amine forms an N-nitrosoamine on treatment with NaNO2 in dlute aqueous acid at 0 degrees celsius?
March 2, 2009

organic chemistry
What compounds gives diethylamine, on reduction with lithium aluminum hydride?
March 2, 2009

organic
what will the structure look like if a tetrahedral intermediate is formed during the reaction of an ester with an amine?
February 6, 2009

organic chemistry
what site dr bob
February 6, 2009

organic chemistry
what is the first and second step in a alkene halogenation reaction
February 6, 2009

organic
what is the best synthesis of 4-isopropylbenzonitrile?
January 22, 2009

organic
how do you prepare m-bromophenol (E)?
January 22, 2009

organic
what amine is forms an N-nitrosoamine on treatment with NaNO2 in dilute aqueous acid at 0' C?
January 22, 2009

organic
what is the major species present in a solution of glycine at a ph of 2
January 22, 2009

organic
which substituent increases the acidity of a phenolic hydroxyl group when located next to it? CH3- CH3Cdouble bond O -C double bond N
January 22, 2009

organic
how do you convert methyl-CH2CH2CH2CH3 to methyl-CH-CL-CH-CL-CH2CH3
January 22, 2009

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