145 Answered Questions for the topic Chemistry Conversion
Chemistry Conversion
09/28/18
If 125. mg of fluorine-18 is shipped at 10:00 A.M., how many milligrams of the radioisotope are still active after 330 min ?
Chemistry 106, conversion is involved
Chemistry Conversion
09/18/18
what is the volume in gallons of 125 lb of gasoline the density of gas is 0.68 g/cm3
Chem equation
Chemistry Conversion Chemistry
09/16/18
A pound of coffee beans yields 60 cups of coffee (4 cups = 1 qt). How many milliliters of coffee can be obtained from 1.0 g of coffee beans?
That was the whole question. and my answer needs to be 4 sig digs
Chemistry Conversion
09/08/18
a vehicle gasoline has many slightly different compositions depending on local laws. however, on average it has a density of 0.737 g/ml this morning dr. knox pu
a vehicle gasoline has many slightly different compositions depending on local laws. however, on average it has a density of 0.737 g/ml this morning dr. knox pump 7.2 gallons of gasoline in order...
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Chemistry Conversion
09/08/18
A garden hose has a water flow rate of 11.00 liters per minute. How long will it take to fill an 8 foot x 10 foot swimming pool to a depth of 4.50 feet?
1 liter = 0.26417 gal, and 1 cubic foot = 7.4805 gal.
09/07/18
Combustion Chemistry
Complete combustion of 5.90g of a hydrocarbon produced 18.1g of CO2 and 8.63g of H2O. What is the empirical formula for the hydrocarbon?
09/05/18
2.70 g/cm^3 converted to kg/m^3
for my answer on my calculator I get 2700 g/m^3 But I’m not sure if I write 270. g/m^3 as my final answer because of the rounding to the least significant figure rule which we started with 2.70...
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Chemistry Conversion
09/05/18
If a car travels to New York at 65.0m/s. How would this be represented in km/hr
Please help
Chemistry Conversion
09/03/18
A 1.50 cm3 sample of metal is found to weigh 8.91 g. Calculate the density of the metal in units of g/cm3 and g/mL. Be sure to answer all parts.
A 1.50 cm3 sample of metal is found to weigh 8.91 g. Calculate the density of the metal in units of g/cm3 and g/mL. Be sure to answer all parts.
Chemistry Conversion
08/25/18
How to convert fahrenheit to kelvins
The temperature of your armpit in kelvins (21°F) is equal to it's temperature in celsius plus 273
Chemistry Conversion
08/14/18
How many drops of antibiotic should the marine biologist apply?
The average blue whale has a length of 2500 centimeters. The distance from Jupiter to Saturn is 6.46 x 108 km. How many blue whales lined up tip to tail would it take to reach Saturn from Jupiter. ...
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Chemistry Conversion
08/14/18
How fast is Apple riding in centimeters/second
Mr. and Mrs. Applebee are planning a birthday party for their daughter, Apple. Apple would like to have an apple bobbing game at her party. Mr. and Mrs. Applebee buy a bucket that boasts it will...
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Chemistry Conversion
08/14/18
Round answer to four significant figures
A college student, Timmy, works as a dishwasher at a restaurant for a 12 hour shift on Saturday and Sunday every weekend making $12.00 an hour. If the cost of gas is $3.00 per gallon, how many...
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07/20/18
Question about how significant digits work in chemistry.
I'm doing my online chemistry summer class and significant digits are included, of course. But I'm confused about them because everything I believe is being contradicted. Here's what I...
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Chemistry Conversion
07/19/18
calculate the number of mole in 2400g. of co.2
calculate the nimber of moles in 2400g. caco.2
Chemistry Conversion Chemistry
07/11/18
What is the pressure in a 10.00 liter container of methane, CH4(molarmass=16.05 g/mol) that contains 4.00 g of the gas at 25.0•c?
A. 0.610atm
B. 0.305atm
C. 1.07atm
D. 10.7 atm
06/14/18
the factors influencing purity, eg during recrystallisation, filtration and drying of an organic compound.
I need help with this question
06/14/18
evaluate the accuracy of the measurements made, contrasting them with wet techniques, where eg. (determination of Cu2+ concentration by titration and
by colourimetery
Chemistry Conversion
05/26/18
Determine the empirical formula for a compound that is 32.4g carbon, 6.81g hydrogen and 10.79g oxygen.
i need to know how to write the empirical formula
Chemistry Conversion
05/23/18
what is the right formula?
Suppose synthesis of Al2O3 is done in the lab using 20.50 g of Al and excess of O2. Upon purification, 35.48 grams of Al2O3 is produced. What is the percent yield of Al2O3?
04/29/18
Chemistry: Stoichometry
A 1.00 gram sample of potassium bicarbonate is decomposed by heating. If the resulting potassium carbonate weighs 0.725 grams and the calculated yield is 0.776 grams, what is the percent yield?
04/29/18
Chemistry: Stoichometry
Lithium metal decomposes in water and releases hydrogen gas. If 275 mL of hydrogen gas are produced at STP, what is the mass of lithium that reacted.
Li + H2O -> LiOH + H2
04/29/18
Chemistry: Stoiciometry
A Student used 4.55 grams of salicylic acid, along with acetic anhydride, to prepare aspirin.C7H6O3 + C4H6O3 -> C9H8O4 + C2H4O2(salicylic) (acetic an) (aspirin) (acetic acid)(a)Find the...
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04/24/18
How much .2 M NaOH would you need to add to neutralize 30mL of .5 M HCl
How much .2 M NaOH would you need to add to neutralize 30mL of .5 M HCl
Chemistry Conversion
04/18/18
Calculate the number of moles that contain 4.50 x 10 to the 24 power atoms of zinc
4.50 x 10^24 of zinc
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