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1. Which of the following contains the largest number of oxygen atoms?
1.5 mol H2O2
1.4 mol CO2
1.4 mol SO3
2.5 mol H2O
2. Calculate the mass of 7.1 x 1024 formula units of magnesium hydroxide, Mg(OH)2.
3. What is the mass in grams of 2.4 x 10-2 mol K2SO4?
How many moles of luminol are present in 2.00 L of the diluted spray?
Calculate the pH at the equivalence point for the titration of 0.230 M methylamine (CH3NH2) with 0.230 M HCl.
Calculate the amount of energy in the form of heat that is produced when a volume of 4.70 L of SO2 (g) is converted to 4.70 L of SO3 (g) according to this process at a constant pressure and a temperature of 1.00 bar and 25 degree celsius.
Give an example of a ketone which will produce a positive iodoform test and another ketone w/ the same # of carbon atoms that will test negatively. Draw the structures.
a buffer that contains .39 m base b and 0.21 m of its conjugate acid bh has a ph of 8.95. what is the ph after 0.002
If a 20L container was charged with 0.807atm of Xe gas as well as 1.37atm of Fluorine gas at 400.C the xenon gas reacts with flourine and forms xenon tetra fluoride. Explain what mass (g) of xenon tetra fluoride can be produced assuming 100% yield..
determine the new volume ofnbsp a 1.3 l balloon if it is taken from room temperature that is twenty five degree celsius
how can their efficiency be less than 100 and the law of conservation of energy still be valid? 9. an incandescent
A 12-ppm solution of lead gives an atomic absorption signal of 8.0% absorption. What is the atomic absorption sensitivity
1. if in annbsp solution of aqueous sulfuric acid h2so4 hydronium ion concentration is 4 times the concentration of
What might happen to your calculated NaOH molarity if you use tap water rater than deionized water to dissolve the KHP cristals or to rinse down the walls of the flask during the titration
Ammonia gas reacts with hydrogen chloride according to the reaction given below, which must also be balanced. if 7.00g of NH3 is reacted with 12.0g of HCl in a 1.00L container at 25C
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