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calculate the mass in grams of 2.27 mol of calcium nitrate
How many moles are in 202 g of calcium carbonate (CaCO3)?
Answer in units of mol
50.0 mL of 0.050 M hydrochloric acid is titrated with 0.025 M aqueous sodium hydroxide. Calculate the pH of the solution after 51.3 mL of sodium hydroxide solution has been added.
Find the pH of a buffer made ​​of 40 mL of 0.50M HCOOH mixed with 60 mL of 0.40 M HCOONa.
Ka(HCOOH) = 1.6 * 10^-4

I Need full calculation. All the steps. Thanks you very much
what number uniquely identifies an element
How many moles are 1.20 x 10^25 atoms of phosphorous
When 50.2g iron(III) oxide reacts with carbon monoxide, 31.7g iron is produced. What is the percent yield of the reaction?
what is the amount of mole of sodiumtrioxocarbonate5 in 5.3g of the compound Na-23,C-12,O-16
The mass of a cube of iron is 411 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?
40..0ml of 0.400M NaOH solution is diluted to a final voulem o 200.0 mL, calculate the new concentration
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