help needed in explanation of answers

1. a. Fill in all missing bonds, electron pairs, and formal charges on atoms for the molecule represented by the skeletal structure below. Note: the part of the molecule in brackets has a charge of -2, but you need to specify which atoms have the formal charges. b. Write the predicted hybridization for the atoms above (indic ...continues

How many sigma (σ) and pi (π) bonds are in each of the following molecules

1. How many sigma (σ) and pi (π) bonds are in each of the following molecules? Molecule Number of σ bonds Number of π bonds Molecule Number of σ bonds Number of π bonds CO2 XeF3+ N2 Cl2CO CO32- ion BrO3_ 2. An iron atom is located in a molecule called an “iron-porphyrin” (or “he ...continues

Write in the shape of the molecule at the atoms indicated by arrows attached to boxes with “shape:” written in them.

4. The molecule pictured below is AZT. It is a widely used drug for the treatment of AIDS. The Lewis structure below is complete except for electron lone pairs. For this structure: a. Draw in all missing electron lone pairs. b. Write in the shape of the molecule at the atoms indicated by arrows attached to boxes with “shap ...continues

A toothpaste contains 0.24% by mass of sodium fluoride used to prevent caries (cavities) and 0.30% by mass of triclosan (C12H7Cl3O2). A PRESERVATIVE + ANTIGINVITIS AGENT.

A toothpaste contains 0.24% by mass of sodium fluoride used to prevent caries (cavities) and 0.30% by mass of triclosan (C12H7Cl3O2). A PRESERVATIVE + ANTIGINVITIS AGENT. a) How many moles of NaF are in a tube of toothpaste b) How many moles of F- are in a tube? c) How many grams of Na+ are in 1.50g of toothpaste? d) How man ...continues

Vitamin c content of juices

1. Calculate the molarity of the ascorbic acid solution: (a) Mass of ascorbic acid used:0.1 (b) Moles of ascorbic acid (MW=176.1 g/mol):not sure (0.000568g/moL) (c) Volume of solution (mL): 100.01mL (d) Ascorbic acid concentration (mol/L): 2. For each titration, record and calculate the follo ...continues

In the following problem, first find how many grams of oxygen would be used to completely react with 230 grams of pentyl alcohol?

1. In the following problem, first find how many grams of oxygen would be used to completely react with 230 grams of pentyl alcohol (C5H11OH)? How many grams of oxygen would be used? See attached file for full problem description.

Molecular formula of a compound

1. What is the molecular formula of a compound? See attached file for full problem description.

Calculate the empirical formula of this salt

Calculate the empirical formula of this salt. See attached file for full problem description.

How many grams of NO are formed

How many grams of NO are formed. See attached file for full problem description.

How many grams of acetylene are needed for combustion

How many grams of acetylene are needed for combustion. See attached file for full problem description.