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Assume you dissolve 6.73 grams Na2CO3 in enough water to make 250 mL of solution. What is the molarity of the sodium carbonate?
The volume of a gas is 93 mL when the temperature is 91 C. if the temperature is reduced to 0 C without changing the pressure, what is the new volume of the gas
A sample of gas with an initial volume of 27.6L at a pressure of 735 mmHg and a temperature of 309 K is compressed to a volume of 15.8 L and warmed to a temperature of 374 K.
Zinc chloride (ZnCl2) is 52.02% chlorine by mass. What mass of chlorine is contained in 65.0 g of ZnCl2?Answer in units of g.How many moles of Cl is this?Answer in units of mol.
how many grams of vinegar are required to react completely with 25.0g of baking soda.
Hydrogen gas is contained in a one-liter vessel at "STP"(0 degrees Celsius and 1 Std. Atm.). Flourine gas is contained in a second one-liter vessel at the same conditions of temperature and pressure.
What chemical tests might be used to ditinguish between pentanal and 2-pentanone; between benzyl alcohol and diphenylmethanol?
Your metropolitan area has been warned by the EPA to lower sulfur dioxide and nitrogen oxide emissions or it will lose substantial federal funding. One citizen's group calls for conservation as a means of drastically reducing electricity consumption.
Large quantity of ammonia are burned in the presence of platinum catalyst to give nitric oxide as d first step in the preparation of nitric acid.
What are the total pressure in the flask and the partial pressure of HOF after exactly 30 minutes and After 45 minutes If the partial pressure of HOF in a 1.00-L flask is initially1.00 × 10 2 mm Hg at 25 °C?
Draw and construct the open-chain model of glucose, How many chiral carbons are in the open-chain version of glucose?
A nugget of pure gold of 4.80 grams is absorbed 284 Joules of heat. if the initial temperature was twenty eight degree Celsius then what was the final temperature of the Au? The specific heat of gold = 0.129 J/(g·°C)?
A 26.0-g sample of ice at -10.0°C is mixed with 114.0 g of water at 72.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
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