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A student prepared a solution of sodium carbonate by 2.111g of the solid to a 250.0ml volumentric flask and adding H2O to the mark.
Some of this solution was transferred to a burett - What volume of solution should the student transfer into a flask
an inflated balloon has a volume of 0.55 l at sea level 1 atm and is allowed to rise to a height of 6.6 km where the
Problem- What is the chemical reaction for extracting benzoic acid from acetanilide. Also what is the chemical reaction for the recrystallization of benzoic acid and acetanilide
SO2 and O2 react together to form SO3. The resulting reaction mixture is an equilibrium involving all three compounds. Which of the following changes will cause the equilibrium to shift to the left
What is the correct empirical formula of the copper chloride
Using only your answer to a, and the following information: Delta H = -283.0 kJ/mol for the reaction: CO(g) +1/2 O2 (g) --> CO2 (g), determine delta H for the reaction: 4CO (g) + 2NO2 (g) --> 4CO2(g) + N2 (g).
An empty vial weights 31.45 g. If the vial weighs 179.56 g when filled with liquid mercury (d=13.53g/cm3), what is its volume
Write he basic principles and instrunmentaion of conductomery
Sodium carbonate Na_2CO_3) is used to neutralize the sulfuric acid spill. How many kilograms of sodium carbonate must be added to neutralize 4.03×103 kg of sulfuric acid solution?
How many moles of H+ ions are present in 1.9 L of 0.48 M hydrobromic acid.
Since cereal sample may have other materials other than Fe that absorbs light. Using cereal sample as the blank can eliminate these absorption so that the transmittance was solely due to Fe.
4.236-g sample of a hydrocarbon (CxHy) is combusted in O2 completely to give 3.810 g of H2O and 13.96 g of CO2. What is the empirical formula of the hydrocarbon?
Suppose someone leaves the tank open and all the CH4 is released into the laboratory. What volume would the methane occupy if the pressure in the lab is 1.00 atm
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