State the following experimental or calculations errors

Assignment Help Chemistry
Reference no: EM13209630

1) If the level of water in the eudiometer is above that in the cylinder, is the pressure in the eudiometer higher or lower than the atmospheric pressure?

2) Why do we put the magnesium in a copper basket? (why not some other metal?)

3) What are possible sources of error?

4) For each of the following experimental or calculations errors, tell of the calculated value of R, writte if would be too high, too low or unchanged.EXPLAIN

a) Some air bubbles were introduced when the eudiometer was inverted.

b) The magnesium was coated with magnesium oxide.

c) Some of the hydrogen gas is dissolved in the water (hint: if it is dissolved, it wont be a bubble!)

Reference no: EM13209630

Questions Cloud

Mid atlantic ridge support the idea of pangea : Consider wegener's reconstruction of pangea. do the patterns of ocean floor age and the geography of the mid atlantic ridge support the idea of pangea?
What are the two effects of a price change : Assume the wage is $8. Complete the following table: Workers Total Product Marginal Product of Labor Price Marginal Revenue Product (MRP) 1 17 2 2 31 2 3 43 2 4 53 2 5 60 2 6 65 2 What are the two effects of a price change
Departure and arrival velocity changes : What is the mass of a two stage launch vehicle capable of putting a 100kg satellite into orbit around Mars, beginning in a parking orbit altitude at Earth of 200 km.
Evaluate the second partners advice not to move downtown : Illustrate and fully explain using an example of relevant cost (a cost whose value does affect the optimal decision) and an example of irrelevant cost (a cost whose value does not affect the optimal decision) to the business regarding this decisio..
State the following experimental or calculations errors : For each of the following experimental or calculations errors, tell of the calculated value of R, writte if would be too high, too low or unchanged.
Risk management process discussed-health clubs : Refer to the steps in the Risk Management Process discussed in class. Identify how each step (there are six) is being addressed by the agents writing policies on high risk health clubs.
How many full-time workers should the firm employ : If the current stock of capital is fixed at 250 units, how many full-time workers should the firm employ if the weekly salary of each full-time worker (w) is $400 per week Compute the firm's level of output and profits per week in this short-run e..
Distinguishes modern from postmodern scholarship in music : What are some difficulties in using the English terminology to describe the world’s music’s? When is music represented graphically in notation, what are some of the limitations? How is Western staff notation limited, what are some of the limitations?..
How much labor should the firm employ in the short run : Suppose the hourly wage is $10 and the price of each unit of capital is $25. The price of output is constant at $50 per unit. The production function is F(L,K)=L^1/2*K^1/2 If the current capital stock is fixed at 1,600 units, how much labor should..

Reviews

Write a Review

Chemistry Questions & Answers

  State the ore is dissolved in concentrated hcl

The iron content of an ore can be determined by a redox titration using K2Cr2O7 as the titrant. A sample of the ore is dissolved in concentrated HCl using Sn2+ to speed its dissolution by reducing Fe3+ to Fe2+.

  The curve of potential energy versus angle of internal

A Newman projection is given for six conformations about the C2-C3 bond of isopentane. On the curve of potential energy versus angle of internal rotation for isopentane, label each energy maximum

  Compute the partial pressure of ozone

Calculate the partial pressure of ozone and the number of ozone molecules per liter of air if the temperature and pressure were 20.0 °C and 758 mmHg, respectively.

  State the slope of the gran plot for the titration of khp

The slope of the Gran Plot for the titration of KHP with NaOH was found to be -1E-05. Use this to determine ka2. Other values that may be of importance: concentration was measured

  State what is the difference between the molecular geometry

What is the difference between the molecular geometry

  How much caco3 is produced

CaCN2 + 3 H2O → CaCO3 + 2 NH3 . How much CaCO3 is produced if 47.5 moles NH3 are produced?

  State what is the mole fraction of acetone

What is the mole fraction of acetone, C3H6O, in the vapor phase from a solution consisting of a mixture of acetone and ethyl acetate, CH3COOCH2CH3, at 30.00 °C, if the total pressure above the solution is 184.6 torr?

  State how many molecules of acetic acid needed

Determine the molarity of this solution. (b) If I use 1 cup of vinegar (236.588 mL) to help create a cleaning solution for my windows, how many molecules of acetic acid is this?

  Explain water and add a couple of drops of phenolphthalein

Suppose in the lab you measure 0.3951 g of NaOH and dissolve it into 100.0 mL of water. You then measure 0.1985 g of KHP and place it in a clean, dry 100-mL beaker, and then dissolve the KHP in about 25 mL of water and add a couple of drops of phe..

  State the active ingredient in some antiperspirants

The active ingredient in some antiperspirants is aluminum chlorohydrate, Al2(OH)5Cl. Analysis of a 2.000-g sample of antiperspirant yields 0.334 g of aluminum. What percent (by mass) of aluminum chlorohydrate is present in the antiperspirant?

  What mass of glucose is produced

In photosynthesis, plants use energy from the sun in combination with carbon dioxide and water to form glucose (C6H12O6) and oxygen. If 4.50 moles of water react with carbon dioxide, what mass of glucose is produced?

  What is the percent error of the measured density

A cube of a gold with a volume of 59 cm3 has a mass of 980 g. The density of pure gold is 19.3 g/cm3. What is the percent error of the measured density?

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