Explain what is the molecular mass of h2seo3

Assignment Help Chemistry
Reference no: EM13551097

Current convention defines 1 amu as exactly 1/12 the mass of an atom of the isotope 12C. Since most elements occur naturally in well-established fixed relative abundances of different isotopes, the so-called Atomic Mass for a particular element represents a weighted average of the masses of the individual isotopes. For example, naturally occuring carbon is a mixture of 98.90% 12C (12.000000 amu) and 1.10% 13C (13.003355 amu) plus a trace of 14C (14.003241 amu). The Atomic Mass of carbon is found to be 12.011 amu.
A Molecular Mass is the sum of the (averaged) Atomic Masses for all atoms in a molecule.

What is the Molecular Mass of H2SeO3?

Reference no: EM13551097

Questions Cloud

Determine what is the temperature of the hot junction : A copper-constantan thermocouple generates a voltage of 5.03 10-3 volts when the temperature of the hot junction is 121.0° C, what is the temperature of the hot junction
Explain why are carbonyl double bonds polarized : Why are carbonyl double bonds polarized. Draw a carbonyl and assign partial charges to the oxygen and carbon atoms.
How much heat is needed to melt the ice : A Styrofoam calorimeter contains 40.0g of water at 50°C. To this we add 2.0g of ice at initial temperature of 0°C. How much heat (in calories) is needed to melt the ice
What is the maximum efficiency such an engine could have : A research group plans to construct an engine that extracts energy from the ocean, using the fact that the water temperature near the surface is greater than the temperature in deep water. If the surface water temperature is 26.0°C and the deep-water..
Explain what is the molecular mass of h2seo3 : The Atomic Mass of carbon is found to be 12.011 amu. A Molecular Mass is the sum of the (averaged) Atomic Masses for all atoms in a molecule. What is the Molecular Mass of H2SeO3
What is the thermal efficiency of the plant : A nuclear power plant has a reactor that produces heat at the rate of 690 MW. This heat is used to produce 250 MW of mechanical power to drive an electrical generator.  At what rate is heat discarded to the environment by this power plant? MW
Explain the reaction goes to completion : Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 2.965-g sample of Mg metal is added to 75.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. How many grams of H2 are formed
What temperature is necessary for model to be good model : The simple harmonic oscillator can be used as a model for the vibration of a diatomic molecule. Mass and Force Constant are on the order of 10^?26 kg and 10^3 N/m. This model will work if the temperature is sufficiently low (we assume it is in the gr..
Explain what is the vapor pressure of ethanol at 16 c : Ethanol has a heat of vaporization of 38.56 kJ/mol and a normal boiling point of 78.4 C What is the vapor pressure of ethanol at 16 C

Reviews

Write a Review

Chemistry Questions & Answers

  Caculate the molar mass of the unkown acid compound

if 2.325g of an unknown acid compound is made up to 200.0 mL with water. 10.00 mL of the resulting solution requires 15.43 mL of 0.1808 M NaOH.

  Explain the inert pair effect is observed group iva elements

The inert pair effect is observed for : A) Group IIIA and Group IVA elements B) Group IVA elements C) Group IIIA elements D) group IIA elements E) group IA elements

  Explain what is the molecular formula of the hydrocarbon

A sample of a liquid hydrocarbon know to consist of molecules with five carbon atoms is vaporized in a .204 L flask by immersion in a water bath at 101?. The barometric pressure is 767 torr, and the remaining gas weighs .482 g. What is the molecul..

  Define what two steps in the reaction are accelerated

what two steps in the reaction are accelerated by the presence of strong acid, and what function does the acid play in each of these steps

  What is the maximum mass of agcl

A volume of 10.0 mL of a .00300 M solution of Cl- ions are reacted with .500 M solution of AgNO3-. What is the maximum mass of AgCl that precipitates in grams.

  Explain the individual standard electrode potentials

The individual standard electrode potentials do not indicate anything about tendency to gain electrons. The cell potential of the entire cell does.

  Explain the fescn2+ solution is an orange-brown colour

Why must we the wavelength bet set to 447nm when the FeSCN2+ solution is an orange-brown colour

  Compute enthalpy change for the quantity of zinc reacted

calculate enthalpy change for the quantity of zinc reacted. Be sure to follow the significant figures convention in the answer you report.

  Define a sample of helium gas

A sample of helium gas has a volume of 8.23 L at 258.8 K and 2.049 atm. How many helium molecules does it contain

  Calculate the wavelength of light

Calculate the wavelength of light that would be required to excite an electron from the HOMO to the LUMO. Hint: Recall that (triangle)E=hv=hc/lambda, and that 1 eV=1.602 x 10^-19 Joules.

  State what is the aspirin in the time release tablet

The aspirin componet weighs only 250mg. What is the w/w% aspirin inthe time release tablet?

  Nbspa solution of 0100 m acetic acid is prepareda what is

nbspa solution of 0.100 m acetic acid is prepared.a what is its ph value? b if 20 of the initial acetic acid is

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