Calculate the mass in grams of carbon needed to produce 160 g of CO_2 in burning: C + O_2 to CO_2 Suppose that polluted air has carbon monoxide (CO) levels of 15.0 ppm. An average human inhales about 0.50 L of air per breath and takes about 20 breath per minute. How many milli...
The IPCC says that the pre-industrial amount of CO2 in the Earth's atmosphere was about 280 parts per million (ppm), meaning that for every million molecules of dry air, 280 of them were CO2. In contrast, 2005 levels of CO2 were measured at 379 ppm [Source: IPCC]. Nitrous oxide(N...
Ozone in water can be measured using a manual ozone test kit or ozone meter. Ozone is measured in ppm (parts per million), and it is easily correlated to the mV (millivolts) reading on an ORP (oxidation-reduction potential) meter to provide you with an accurate ozone reading. An ORP...
How many kilograms of salt must be added to 20 kg of an 80% salt solution to produce an 85% salt solution?Answer and Explanation: First we need to determine how much salt and solvent we have: 0.8 * 20 = 16 kg salt Since 80% is salt, 20%...
These sensors can accurately measure formaldehyde levels in parts per million (ppm) or micrograms per cubic meter (μg/m³), providing real-time data on indoor air quality. This data is crucial for identifying potential sources of formaldehyde emissions and implementing measures to mitigate ...
find many cannabis yield calculators online. some are more exact than others. because of so many factors, like genetics, light, indoor or outdoor conditions, and plant care, i prefer to stick to estimations. years of growing cannabis have led to me doubling the outcomes of my grow over ...
Hundreds of parts per million may notsoundlike a lot, but in fact many substances have important properties when present at such levels. Here are a few examples: He wasn't driving drunk, he just had atraceof blood alcohol; 800ppm(0.08%) is the limit in all 50 US states and limits ar...
If you are working from the 2C ‘dangerous’ target, Michael Mann argued recently that Earth will cross the danger threshold in 2036. Now, today we hear from the Sunday Times: Just 16 years to avoid carbon calamity, say experts AR5 Synthesis Report This particular post is triggered by toda...
How many pounds of copper are contained in 6.63 pounds of pure CuFeS2? Stoichiometry Stoichiometry is an aspect of Chemistry that utilizes the mole ratios of products and reactants in a chemical reaction. Using the mole ratio, one can attai...
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