Chemistry

Chemistry, 30.09.2019 13:30, cordobamariana07

Calculate the mass of two moles of kbr

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Chemistry, 25.07.2019 13:00, dzepeda061

98 ! will award extra pls answer the following: make the following calculations of properties of gases a. how many moles of so2 are in 745 l at stp? b. what is the volume of 325 moles of n2? c. what is the density of a gas with a molar mass of 78 g/mole? question 18 determine the following formula masses: a. nh4cl b. nahco3 c. c17h18f3no question 19 how many moles are each of the following? a. 270 g kbr b. 397 g li2so4 question 20 calculate the percent by mass of water in the following compounds a. cocl2.6h2o b. pbcl2. 3h2o question 21 how many particles are there in a. 0.2 moles feso4 b. 1.7 moles ch4 question 22 what is the mass of a. 1.7 moles cabr2 b. 0.48 moles n2o question 23 determine the percent composition for the following a. a compound contains 6.2 g c, 4.1 g h, and 15.9 g o b. a compound contains 1.2 moles c and 3.2 moles h

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Chemistry, 02.08.2019 22:30, salvadorperez26

The second step is to calculate the mass of a given element ammonium nitrate (nh4no3). we will calculate the masses of all three elements. the molar mass of each element is given below: molar mass of n: 14.0 g/mol molar mass of h: 1.0 g/mol molar mass of o: 16.0 g/mol identify the number of moles of each element present in one mole of nh4no3. # moles n: 2 # moles h: 4 # moles o: 3 calculate the mass of each element in the compound by multiplying its molar mass by the number of moles of the element present in one mole of the compound. mass n = g mass h = g mass o = g

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Chemistry, 02.08.2019 22:30, averystricker7837

The second step is to calculate the mass of a given element ammonium nitrate (nh4no3). we will calculate the masses of all three elements. the molar mass of each element is given below: molar mass of n: 14.0 g/mol molar mass of h: 1.0 g/mol molar mass of o: 16.0 g/mol identify the number of moles of each element present in one mole of nh4no3. # moles n: # moles h: # moles o:

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Chemistry, 01.11.2019 19:31, smariedegray

How is stoichiometry used to calculate the mass of a substance? o a. unit conversion factors are used to convert between units of grams and moles. o b. oxidation numbers are used to convert from moles of one molecule to moles of another molecule. o c. subscripts in chemical formulas are used to calculate amounts of substances. o d. percent contributions are used to convert between molar mass and mass. submit

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