starlight
This page lists questions and answers that were posted by visitors named starlight.
Questions
The following questions were asked by visitors named starlight.
(You may have seen this before) A crude oil burned in electrical generating plants contains about 1.2% sulfur by mass. When the oil burns, the sulfur forms sulfur dioxide gas: S(s) + O2(g) -------> SO2(g) How many liters of SO2 (d = 2.60 g/L) are produced...
17 years ago
last check: (c) A wine cooler contains 4.5% ethanol by mass. Assuming that only the alcohol burns in oxygen, how many grams of wine cooler need to be burned to produce 3.12 L of CO2 (d = 1.80 g/L at 25°C, 1 atm pressure) at the conditions given the densit...
17 years ago
Using data from past years, the economists for smith brothers inc determined that the revenue f the company can be modeled by the function R(x)=0.0125x^2+412x. In addition, the function C(x)=12225+0.00135x^2 models the total cost of doing business, where...
12 years ago
Answers
The following answers were posted by visitors named starlight.
for the balanced equation i got 1C2H5OH + 3O2 ==> 2CO2 + 3H2O - why is this wrong?
17 years ago
I also don't completely understand this line: 1.25 L H2O has a mass of 1.00 gram. I thought since the density was 1g /cm^3 it would be more like 1g / mL = 1000g/ L so 1250 g of H2O?
17 years ago
for (b) this is my work1250 g of H2O * 1 mol / 18 g = 69.44 mol of H2O # of moles of C2H5OH = 69.44 mol of H2O * 1 mol of C2H5OH / 3 mol of H2O = 23.15 mol of C2H5OH * 46 g / 1 mol = 1065 g of C2H5OH 1065 g of C2H5OH * 1 cm3 / 0.789 g = 1350 cm3 of C2H5OH...
17 years ago
its okay its np =)
17 years ago
i got 92.3 L SO2 is this correct?
17 years ago