User Account

All Pages

What is the mass percentage of oxygen in ethanol

Assignment Help Chemistry
Reference no: EM13713706

Question- a) What is the molecular formula for the compound containing 30.4% nitrogen and 69.6% oxygen by mass and having a molar mass of 92.0 g?

b) What is the mass percentage of oxygen in ethanol, C2H5OH?

c) What is the mass of a sample of methane (CH4) which contains 3.7 x 1020molecules?

d) How many oxygen atoms does a 1.38-g sample of sulfur trioxide contain?

Any expert will able to provide correct answer for the above question.

Reference no: EM13713706

Questions Cloud

A company used three different selection methods : A company used three different selection methods to select entry level business process analyst: 1. Structured interviews (validity coefficient 0.62) 2. Mental Ability Test (validity coefficient 0.54) 3. Work sample (validity coefficient 0.50)..
Problem related to the molar concentration of ammonia : Theoretical values of pH and [H+] if the experimental value of pH is 11.12 and the molar concentration of ammonia is 0.100
The forecast for dec 2015 based only on the trendline : Using the Excel data provided, determine the Dec 2015 forecast for Ruston based only on the trend and then again with the seasonal component included, if any exists (Table 2). Management believes that the load for Ruston (Table 1) will remain..
What is the empirical formula of the compound : What is the empirical formula of the compound containing 41.4% carbon, 3.4% hydrogen, and 55.2% oxygen by mass. What is the empirical formula for the compound containing 30.4% nitrogen and 69.6% oxygen by mass
What is the mass percentage of oxygen in ethanol : What is the molecular formula for the compound containing 30.4% nitrogen and 69.6% oxygen by mass and having a molar mass of 92.0 g
Calculate the ph of the solution after acid have been added : A 25.0-mL sample of a 0.090 M solution of aqueous trimethylamine is titrated with a 0.11 M solution of HCl. Calculate the pH of the solution after 10.0, 20.0, and 30.0 mL of acid have been added; pKb of (CH3)3N = 4.19 at 25*C
The gas sample at the new volume and pressure is : The volume of the gas sample is decreased to 8.0 L while its pressure is increased to 403 mm Hg. If the ideal gas law is obeyed, the temperature of the gas sample at the new volume and pressure is
How much 6.00 m naoh must be added to acetic acid : How much 6.00 M NaOH must be added to 580.0 mL of a buffer that 0.0195 M acetic acid and 0.0250 M sodium acetate to raise the pH to 5.75
The oxidation electrode and which is the reduction electrode : A cell has an aluminum electrode and a zinc electrode in aluminum nitrate solution and zinc nitrate solution, respectively. The cell potential is +0.92 V and zinc is the cathode. Which is the oxidation electrode and which is the reduction electrod..

Reviews

Write a Review

Chemistry Questions & Answers

  State carbonyl peak of benzaldehyde appears as a very strong

The carbonyl peak of benzaldehyde appears as a very strong and intense peak at 1703 cm -1. Normally the carbonyl peak of an aldehyde appears at 1725 cm -1. Why does the carbonyl peak of benzaldehyde appear at a lower frequency

  How many grams of o2 are needed

How many grams of O2 are needed to react with 18.5 grams of Mg?  2 Mg(s) + O2(g) → 2 MgO(s)

  What is the number of moles of air

At 0.0oC, if the volume of air is 3.1 mL and the pressure of the atmosphere that day is 815 mmHg, what is the number of moles of air?

  Explain a hydrogen atom with an electron in its ground state

A hydrogen atom with an electron in its ground state interacts with a photon of light with a wavelength of 1.22 × 10-6m. Could the electron make a transition from the ground state to a higher energy level?

  Explain the preparation and standardization

Proper procedure for the preparation and standardization of ~300 mL of ~1 M NaOH solution against potassium hydrogen phthalate i.e., this is an acid/base titration, It is desirable for the acid and base

  Compute the specific heat capacity of copper

Calculate the specific heat capacity of copper, assuming that all the heat lost by the copper is gained by the water. Provide the Answer In: J/g·°C

  Explain a calorimeter whose heat capacity is negligible

Both pieces are placed inside a calorimeter whose heat capacity is negligible. What is the final temperature inside the calorimeter

  Explain the relationship between the constants a and b

Derive the relationship between the constants a and b of the Dieterici equation: p=(RT/V-b)exp(-a/RTV)

  Explain the conversion of pyruvate ion to lactate ion

Is the conversion of pyruvate ion to lactate ion in the reaction CH3COCO2-(aq) +NADH(aq) + H+(aq) CH3CH(OH)CO2-(aq) + NAD+(aq) a redox reaction

  Doubling the temperature of the container will do what

An ideal gas is in a closed container (with a fixed pressure) at an initial volume of 1L and temperature of 300K, doubling the temperature of the container will do what

  Explain the lowest whole-number coefficient or oh-

When the following oxidation-reduction reaction in basic solution is balanced, what is the lowest whole-number coefficient or OH-, and on which side of the balanced equation should it appear

  Explain a gravimetric titration in the mass of titrant

This problem describes a gravimetric titration in which the mass of titrant is measured instead of the volume. A solution of NaOH was standardized by titration of a known quantity of the primary standard potassium hydrogen phthalate (KHP) which ha..

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