User Account

All Pages

Atoms of the elements involved

Assignment Help Chemistry
Reference no: EM132060660

If the Molar mass of SiO2 is 60.09, and the mass of my stirring rod (sample) is 12.47 (g), how do I calculate the moles of the sample & the atoms of the elements involved?

Reference no: EM132060660

Questions Cloud

How much do you pay every month : You borrow the remaining at an APR of 12% semi-annually compounded, to be repaid in monthly installements for the next 25 years.
Theoretical value for the solubility of calcium chloride : If the theoretical value for the solubility of calcium chloride is 74.5 g/100 mL , what is the percent error for this experiment?
Write a research paper on the enron scandal : Identify the relevant accounting ethics standards involved in the situation .Write a research paper on the Enron Scandal
Hoff factor of formic acid : Calculate the van't Hoff factor of formic acid (e.g.amount dissociated/total amount of formic acid).
Atoms of the elements involved : If the Molar mass of SiO2 is 60.09, and the mass of my stirring rod (sample) is 12.47 (g), how do I calculate the moles of the sample
Determine cost of goods manufactured for january : Compute the predetermined manufacturing overhead rate for the Sanding Department.Determine cost of goods manufactured for January.
Helium gas toeffuse through a pinhole into a vacuum : If it takes 6.5 seconds for 25 cm3 of helium gas toeffuse through a pinhole into a vacuum, how long would it take for25 cm3 of CH4 to escape
Lithium chloride and to break the hydrogen bonds in water : This is because (less/ more) energy is released when ions bond to water molecules than is used to break the bonds in lithium chloride
Measurement of the volume delivered by the pipet : What is the calculated precision for your measurement of the volume delivered by the pipet and what is the suggested limit of precision

Reviews

Write a Review

Chemistry Questions & Answers

  What was the original concentration of the barium hydroxide

A 50 ml sample of barium hydroxide is titrated with 0.475 M perchloric acid solution. The 2nd equivalence point is reached when 37.5 ml of the base is added.

  Explain the angular momentum quantum number

The angular momentum quantum number (?), the magnetic quantum number (m?), and the spin quantum number (ms) have strict rules which govern the possible values. Identify allowable combinations of quantum numbers for an electron

  Calculate the ph of each of the solutions

Calculate the pH of each of the following solutions ( Ka and Kb values are given in Appendix D in the textbook). 0.115 M hydrogen chromate ion (HCrO4^-).

  Predict the ideal solubility of lead in bismuth

Problem- Predict the ideal solubility (in terms of mole fraction) of lead in bismuth at 280 oC given that its melting point is 327 oC and its enthalpy of fusion is 5.2 kJ/mol. At this ideal solubility, what mass of lead dissolves in 1 kg of bismut..

  Define the structure and name of hrm compound

The H NMR spectrum of a compound with formula C3H8O demonstrate signals at 1.2 (doublet) 2.2 (singlet) and 4.0 (septet, split seven ways). Define the structure and provide an acceptable name of the compound.

  State ammonium carbamate found in urine of mammals

Ammonium carbamate (NH2COONH4) is found in the blood and urine of mammals. At a temperature of 466 K, Kc = 0.080 for the following equilibrium: NH2COONH4(s) 2 NH3(g) + CO2(g). If 10.2 g of ammonium carbamate is introduced into a 0.500 L containe..

  What is the specific heat capacity of substance

If the specific heat capacity of substance B is 1.17 J/g·°C, what is the specific heat capacity of substance A? Provide a detailed explanation please!

  Compute the ph of a solution containing formic acid

Calculate the pH of a solution containing 25.00 mL of 0.12 M formic acid (Ka = 1.7 x 10^-4) to which the following amounts of 0.10 M NaOH have been added:

  Compute the density of the gas in the tank

If the temperature is 22 degrees C, the total pressure in the tank is 3.50 atm, and the density of the gas in the tank is 1.17 g/L, what is the partial pressure of H2?

  The molecule h2s2 has a linear arrangement of its atoms

the molecule h2s2 has a linear arrangement of its atoms. number all sulfur atoms along the chain from 1 to 4. find the

  Balanced chemical equation using the lowest possible

Write the balanced chemical equation using the lowest possible whole number coefficients for Fe2O3+2Al = 2Fe+Al2O3.

  Explain combusted in a constant-pressure bomb calorimeter

When 1.0 g of snack cake is combusted in a constant-pressure bomb calorimeter with a heat capacity (including its water) of 10.0 kJ/°C, the temperature of the calorimeter rises by 2.24°C. How many nutritional calories (Calories) are in one serving..

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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