2,220 Answered Questions for the topic organic chemistry

Organic Chemistry Science Chemistry

07/06/21

Molarity chemistry

If 0.96 moles of NaCl are dissolved to make 1.4 L of solution, what is the molarity?
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Organic Chemistry Biology Biochemistry

07/06/21

How to convert µg/ml in µM?
Hey guysI performed some cytotoxity assays using cisplatin recently and defined the IC50 in µg/ml (e.g. for one cell line I got 5.4 µg/ml). Now I would like to compare these values with ones... more
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Organic Chemistry

07/04/21

Question in Chemistry
Sodium metal reacts with water to produce hydrogen gas according to the following equation:2Na(s) + 2H2O(l)2NaOH(aq) + H2(g)The product gas, H2, is collected over water at a temperature of 25 °C... more
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Organic Chemistry

07/04/21

Question in Chemistry
A sample of krypton gas occupies a volume of 8.61 L at 52.0°C and 350. torr.If the volume of the gas sample is increased to 11.0 L, while its temperature is decreased to –20.0°C, the... more
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Organic Chemistry Science Chemistry

07/04/21

chemistry volume

If I have 21 liters of gas held at a pressure of 78 atm and a temperature of 900. K, what will be the volume of the gas if I decrease the pressure to 52 atm and decrease the temperature to 750 K?
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Organic Chemistry Science Chemistry

07/04/21

chemistry volume of gas

I have an unknown volume of gas at a pressure of 0.50 atm and a temperature of 325 K. If I raise the pressure to 1.2 atm, decrease the temperature to 320 K, and measure the final volume to be 48... more
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Organic Chemistry Science Chemistry

07/04/21

chemistry pressure and volume

If I have 17.0 liters of gas at a temperature of 67.0 °C and a pressure of 88.89 atm, what will be the pressure of the gas if I raise the temperature to 94.0 °C and decrease the volume to 12.0 L?
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Organic Chemistry Science Chemistry

07/04/21

ideal gas laws chemistry

At what temperature (in Kelvin) would 4.00 moles of hydrogen gas in a 100 liter container exert a pressure of 1.00 atmospheres?
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Organic Chemistry Science Chemistry

07/04/21

ideal gas laws chemistry

An 18.0 liter container holds 1.20 moles of oxygen gas (O2) at 45.0 °C. What is the pressure in the container (in atm)?
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Organic Chemistry Science Chemistry

07/04/21

ideal gas laws chemistry

When 0.250 moles of a gas is placed in a container at 25 °C, it exerts a pressure of 700. mm Hg. What is the volume of the container?
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Organic Chemistry Science Chemistry

07/04/21

ideal gas laws chemisrty

What is the pressure exerted by 5.00 moles of nitrogen gas contained in a 30.0 Liter container at 25.0 °C?
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Organic Chemistry Science Chemistry

07/04/21

ideal gas laws chemistry

How many moles of oxygen must be placed in a 3.00 liter container in order to exert a pressure of 2.00 atmospheres at 25 °C
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Organic Chemistry Science Chemistry

07/04/21

ideal gas law chemistry

At 17 °C, a 0.80 mole sample of a gas exerts a pressure of 1.2 atmospheres. What is the volume of the container?
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Organic Chemistry

07/04/21

Question in Chemistry
Compute the root-mean-square speed of Ar molecules in a sample of argon gas at a temperature of 61°C. m... more
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Organic Chemistry

07/04/21

Chemistry Question
The rate of effusion of SO4 gas through a porous barrier is observed to be 4.56*10^-4 mol/h.Under the same conditions, the rate of effusion of He gas would be ... more
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Organic Chemistry Science Chemistry

07/02/21

finding moles chemistry

How many moles of KCl are produced from 10.8 grams of K? 2K + Cl2 → 2KCl
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Organic Chemistry Chemistry

07/02/21

chemistry finding moles

How many moles of oxygen are produced by the decomposition of 6.0 moles of potassium chlorate, KClO3? 2KClO3 → 2KCl + 3O2
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Organic Chemistry

07/01/21

Can someone please answer this question completely
The nutrition facts are given for a packet of instant oatmeal. Calculate the energy in Calories available from the total carbohydrates, from the total fat, and from the protein, in one serving of... more
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Organic Chemistry

07/01/21

Can someone please answer this question?
A 27.44 g sample of a substance is initially at 21.0 °C. After absorbing 2565 J of heat, the temperature of the substance is 156.6 °C. What is the specific heat (c) of the substance?  C= j/g °C
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Organic Chemistry

07/01/21

Can someone please answer this question for me
Magnesium has two isotopes.2512Mg which has a mass of 25.2 amu and an abundance of 65.37%.2312Mg which has a mass of 23.18 amu and an abundance of 34.63%.Calculate the average atomic mass of... more
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Organic Chemistry College

06/28/21

I really need help with question please help

1.    A student measures that the mass of a sugar solution is 5.70 g and the volume of the solutionis 5.0 mL. (a) Calculate the density of the solution. (b) Calculate the concentration... more
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Organic Chemistry College

06/28/21

Please help me solve this problem
The density of rubbing alcohol is 0.785 g/mL at 25oC. a.       Calculate the mass of 15.0 mL of the rubbing alcohol. b.       Calculate the volume of the 15.0 g of the rubbing alcohol. more
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Organic Chemistry College

06/28/21

Can someone please answer this question for me I am really confused
Oil and water do not mix with each other. But when we add oil into water, oil floats overthe water. What property of oil makes the oil float on water?
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Organic Chemistry

06/28/21

Can someone please help with this

A perfect cube of a gold metal was found to have a mass of 45.85 g. The density of the gold is 19.3 g/cm3. Calculate the dimensions of the cube.
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Organic Chemistry

06/28/21

Help me please I need help
A cylindrical rod of iron metal has a density of 7.87 g/cm3. If the mass of the rod is 54.00 g, then calculate the volume of the iron rod.
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