A compound consists of 600 carbon 267 oxygen and 133

Assignment Help Chemistry

Reference no: EM13639040

) The Einstein equation E=mc² shows that 1.0g of matteris the equivalent of 2.1 X 10¹⁰ kcal. When 2.0 g ofhydrogen reacts with 16 g of oxygen to form 18 g of water, 68 kcalof heat energy is given up. This quantity of energy is attributed to what loss of mass in the reaction system?

2) Methanol also called methy alcohol, is the simplest alcohol. Itis used as a fuel in race cars and is a potential replacement forgasoline. Methanol can be manufactured by combination of gaseouscarborn monoxide and hydrogen. Suppose 68.5 kg of CO (g) is reactedwith 8.60 kg hydrogen gas. Calculate the theoretical yield of methanol. If 3.57 X 10⁴ grams methanol is actuallyproduced what is the percent yield of methanol?

3) A compound consists of 93.75% carbon and 6.25% hydrogen. Thesubstance dissolves in benzene, and 6.14 g of it lowers thefreezing point of 100 g of benzene 2.45 ^oC. A) What isthe emipirical formula of the compound? B) What is its molecularweight? C)What is its molecular formula?

4) A. Is it geometrically possible for the four hydrogen atomsattached to the end carbon atoms in the 1, 3-butadiene molecule tolie in the same plane? B)If carbon-hydrogen bonds on adjacentsingly bonded carbon atoms tend to repel each other, would it belikely for all six hydrogen atoms to lie in the same plane? C) Ifthey do, what is their relation to the plane of the carbonatoms?

5) A compound consists of 60.0% carbon, 26.7% oxygen, and 13.3 %hydrogen. Its molecular weight is 60. What are the possiblestructures for molecules of this chemical compound?

6) Nitrogen gas can be prepared by passing gaseous ammonia oversolid copper (II) oxide at high temperatures. The other products ofthe reaction are solid copper and water vapor. If a samplecontaining 18.1 g of NH₃ is reacted with 90.4 g of CuO,which is the limiting reactant? How many grams of N₂ will be formed?

Reference no: EM13639040

Questions Cloud

The water exit the firehose with sufficient velocity to : water exits the firehose into atmosphere of 101kpa. the water exit the firehose with sufficient velocity to travel 30

Find the angle at which romeo launches the pebbles you have : romeo is chucking pebbles gently up to juliets window and he wants the pebbles to hit the window with only a horizontal

An article suggests that a poisson process can be used to : an article suggests that a poisson process can be used to represent the occurrence of structural loads over time.

Using the ideal gas model with constant specific heats : nitrogen gas is contained in a rigid 1-m tank initially at 10 bar 300k. heat transfer to the contents of the tank

A compound consists of 600 carbon 267 oxygen and 133 : the einstein equation emc2nbspshows that 1.0g of matteris the equivalent of 2.1 x 1010nbspkcal. when 2.0 g ofhydrogen

A cd has a playing time of 474 minutes when the music : a cd has a playing time of 47.4 minutes. when the music starts the cd is rotating at an angular speed of 512

Assuming the slapping hand has a mass of 12 kg and about : if you ever slapped someone or got slapped yourself you probably remember the burning sensation. imagine you had the

Calculate the temperatures when the water rate is reduced : water specific heat 4.2 kjkg c at the rate of 120 kgmin is heated from 20 to 70 c by an oil having a specific heat of

A simple pendulum makes 120 complete oscillations in 300 : a simple pendulum makes 120 complete oscillations in 3.00 min at a location where g 9.80 ms2. find a the period of the

User Account

All Pages