Explain what minimum sample weight should be taken

Assignment Help Chemistry
Reference no: EM13264703

A particular method is to be used to analyze an ore that contains 4.8% copper. What minimum sample weight should be taken if the relative error due to a 0.5 mg loss is to be smaller than .1%

Reference no: EM13264703

Previous Q& A

  What would explain the change

A senior executive in the company believes that 1 million candy bars will indeed be sold, but lowers the estimate of incremental revenue to $700,000. What would explain the change?

  What is the npv of accepting the lockbox agreement

What is the NPV of accepting the lockbox agreement? (Round your answer to 2 decimal places)

  How many vital figures will record in the age of the earth

most scientists agree that the earth is 4.5 billion years old. 50 years from noe, how many sig figs will we record in the age of the earth

  What is the effect of this raw material price increase

Suppose the price of coffee beans increases by $0.20 per pound. What is the effect of this raw material price increase on the demand for roasted coffee? If one pound produces 50 cups of coffee, would the price of a cup of coffee rise by $0.01 ? Expla..

  Mathematical equations using latex

To typeset documents that include titles, sections, lists, emphasis, verbatim environments, footnotes, tables of contents, and mathematical equations using LATEX

  World’s population is increasing at an annual rate

If the world’s population is increasing at an annual rate of 1.3%, and there were 5 billion people in the year 1986, then in what year will the world’s population be 10 billion?

  What electrical component is equivalent to a dashpot

If a spring is considered as being equivalent to an electrical resistance where force=voltage and displacement=current, then what electrical component is equivalent to a dashpot?

  What is the companys weighted average cost of capital

What is the company's weighted average cost of capital?

  Explain the relative strength of the intermolecular forces

Match the following properties of liquids to what they indicate about the relative strength of the intermolecular forces in that liquid. Strong intermolecular forces: Weak intermolecular forces

  Category of positive or neutral communications

Most messages we write in the work place fall into the category of positive or neutral communications. Examples include routine requests, informative or good news announcements, replies to inquires, messages granting claims, letters of recommendation..

Reviews

Write a Review

 

Similar Q& A

  Calculate the number of atoms per unit cell

A certain solid metallic element has a density 7.87 g/cm3 and a molar mass of 55.85 g/mol. It crystallizes with a cubic unit cell, with an edge length of 286.7 pm. calculate the number of atoms per unit cell.

  Calculate the major product in the williamson

Calculate the major product in the Williamson ether synthesis between 1-bromopentane and sodium 1-phenylethoxide. correct stereochemistry of the product must be shown in its with four bonds - with H - at the chirality center.

  How many liters of gasoline would you need to buy

In Europe, gasoline efficiency is measured in km/L. If your car's gas mileage is 23.0 mi/gal, how many liters of gasoline would you need to buy to complete a 142-km trip in Europe?

  Explain a compound contains only carbon and hydrogen

A compound contains only carbon, hydrogen, nitrogen, and oxygen. Combustion of a 2.18 g sample burns in excess oxygen yields 3.94 g of CO2 and 1.89 g of H2O. A separate experiment shows that a 1.23 g sample contains 0.235 g of N.

  Compute the molar concentrationof the ba(oh)2

use your titration results to calculate the molar concentration (molarity) of the Ba(OH)2 solution using the molar amounts of H2SO4 used in each trial

  Compute the ph before any of the titrant

formic acid is titrated with 0.50 M sodium hydroxide, calculate the pH before any of the titrant (NaOH solution) is added and after 15.0 mL of the titrant has been added.

  Describe butane must be burned to provide the heat

How many grams of butane must be burned to provide the heat needed to melt a 85.0-g piece of ice (at its melting point) and bring the resulting water to a boil (with no vapourization)? Assume a constant pressure of 1 bar and use the following data

  Complete and balance the equation for basic solution

Complete and balance the equation for this reaction in basic solution. Phases are optional.

  Why chemical formulas alcl3, pcl3 and cocl3 are so similar

explain why the chemical formulas AlCl3, PCl3 and CoCl3 are so similar, yet their names are so different.

  Define molarity of the sodium acetate and the acetic acid

finds the antilog ratio of acid and base and determines that for every 1ml of acid she needs 2.29 ml of acid. what is the final concentration in molarity of the sodium acetate and the acetic acid?

  Explain complete dissociation and ideal behavior

Assuming complete dissociation and ideal behavior, what would be the boiling point of an aqueous solution of MgCl2 that is 8.0% MgCl2 by mass? For H2O

  What is the molecular formula for this compound

An oxide of phosphorus contains 56.4% oxygen and has a molar mass of 284 g/mol. What is the molecular formula for this compound?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd