What is the percent yield of carbon dioxide
when 50.0 grams of acetylene is allowed to react with excess oxygen, 75.0 grams of CO2 are formed. What is the percent yield of carbon dioxide?
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What is the standard cell potential of a Cr-Hg cell? (Remember to switch one-half reaction to oxidation and to balance the number of electrons--use paper.)
The standard free energy change for the formation of N2H4(l) from elements is +149 kJ/mol at 25 °C. What is the equilibrium constant for the reaction? (R = 8.314 J/K·mol)
a solution which is 37.2 mass% hcl has a density of 1.19g/ml.what mass of hcl is contained in 30.0ml of a solution.
Atmospheric pressure is 29.86Hg. What is the absolute pressure in psia being measured? The density of mercury at 70F is 13.543g cm^-3.
Determine the entropy change of the system when 0.750 g of ethanol (C2H5OH) evaporates, given ΔH vaporization is 40.5 kJ/mol and the normal boiling point of ethanol is 78.5 °C.
If we assume the individual drank all of the alcohol at once (i.e. no metabolism of alcohol by the body), the total volume of blood for the individual was 1.5 gallons, and the individual was drinking Maker's Mark (130 proof), what volume of Maker'
The mass of the first block is 1224 g, and its velocity is +0.685 m/s after the bullet passes through it. The mass of the second block is 1555 g. (a) What is the velocity of the second block after the bullet imbeds itself? (b) Find the ratio of th
Suppose that a sample of gas occupies 192 mL of volume at 25C and a pressure of 206 torr. What would be the volume if the pressure were changed to 506 torr at 25C?
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Following current events related to immigration reform, a group of students came to school wearing t-shirts representing national flags
A student notifies you that she has been subjected to bullying through a classmate's Facebook page. Write of 500 words in which you address the following:
Assignment Task: Technological advances have significantly enhanced the ability to efficiently collect and analyze evaluation data.
As you come to the close of your study of World Religions, it has become evident over the past two weeks that religions will continue to have a place
What do you believe about the purpose of classroom management? How will these beliefs influence the rules and expectations you set?
As educators, we are always trying to improve ourselves as well as our professional approach. One needs to reflect on our personal needs and areas of profession
What is the purpose of the flyer? What all services does your program offer for infants and toddlers? Who is your audience?