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An empty beaker weighs 41.19 g. When it is completely filled with water (density = 1.0 g/mL), the beaker weighs 92.92 g.
(a)How many grams of water have been added to the beaker? (b)What is the volume that the beaker can contain?
The air in the balloon is then heated to 62 degree celsius, causing the balloon to expand to a volume of 4.20x10^3 m^3. What is the ratio of the number of moles of air.
A compound is found to be 30.45% N and 69.55 % O by mass. If 1.63 g of this compound occupy 389 mL at 0.00°C and 775 mm Hg, what is the molecular formula of the compound.
How many moles of NaOH would be required to completley neutralize 37.22mL of 0.25M HCl.
Given that Iron(III) oxide or ferric oxide (molar mass = 159.7 g/mol) reacts with Carbon monoxide (molar mass = 28.0 g/mol).
What is the emprical formulae of the compound whose composition by mass is 1.32g of carbon dioxide contain 0.36g of carbon.
How many grams of Ammonium phosphate need to be combined to 500 and
What property of the atom did Moseley associate with the wavelength of X-rays emitted from an element in his experiments?
Table salt and sugar are accidentally mixed A 4.90 g sample is burned and 2.20-g of CO2 is produced What is the mass percentage of salt in the mixture?
Using the formula W = mg, how many milliliters of water with a density of 1g/mL are required to weigh 0.75 newtons and g = 9.81 m/s2?
How much 0.230M KOH is required to completely neutralize 55.0mL of 0.220M HClO4
If a bottle of nail polish remover contains 151 g of acetone, how much heat would be released by its complete combustion?
Calculate the molecular weights of the 5 congeners listed above. What do the trends of log KOA, log KOW, and the negative log of water solubility vs. molecular weight indicate about the relationship between molecular weight and
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