Chemistry Homework Solutions

Dehydrated Ethanol Reaction (Calculating Moles)

At intermediate concentrations of H2S04 in the temperature range 140-170 degrees C, ethanol may be dehydrated by two different independent reactions {see attachment}. Suppose that 30% of the ethanol reacts via reaction (1) and 70% via reaction (2). How many moles of water are produced per mole of original ethanol?

Dehydrated Ethanol Reaction (Calculating Moles)

At intermediate concentrations of H2S04 in the temperature range 140-170 degrees C, ethanol may be dehydrated by two different independent reactions {see attachment}. Suppose that 30% of the ethanol reacts via reaction (1) and 70% via reaction (2). How many moles of water are produced per mole of original ethanol?

Reaction order and rate laws #7

Objective: To study the effect of rectant concentration on the rate of the reaction between sodium thiosulfate and hydrochloric acid. AND to determine the order of each reactant and the rate law for the reaction. From the sample data set determine the rate law: Initial concentration : [NO} [O2 ...continues

Number of Atoms in a Molecule

What is the total number of atoms in a molecule of C6 H12 O6 ?

Formulas?

A)Formula for a covalent complound whoses molecules contain 2 carbon atoms, 6 hydrogen atoms and an oxygen atom? B) The compound composed of Na+ and O2- ions C) The compound composed of Sn4+ and S2- ions D)The compound composed of Fe2+ and PO4 3- ions

electron

What will be the likely charges of an element with an electron arrangement of 2,8,8,2 forms and ion? B) element with an electron arrangement of 2,8,18,7 forms and ion?

atom?

An atom of Bi contains 126 neutrons. What are the atomic number, mass number, number of protons and number of electrons

don't understand

One of the steps in writing the Lewis formulas of covalently bonded molecules is to add up the total number of valance electrons from the atoms involved. What are the total number of of such electrons for the following? A)CH4 B) SO3 C)H2S D) NH3 E N2

general chem 2 problem aicd/base equilibria

DO NOT TAKE THIS PROBLEM UNLESS YOU ARE CONFIDENT U CAN SOLVE IT PROPERLY Calculate the pH when equal volumes of 0.100 M of H2PO3- and 0.02 M HCl are mixed. Calculate the % dissociation of acetic acid at pH = 3.69 "i think the henderson hasselbalch equation is used for the first part but i couldnt figure which ka to use sinc ...continues

element questions

Answer is circled, but please give a step by step detailed answer why it is the answer.

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