What is the molar mass of the solid?
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If a sample of Co2(CO)8 is found to contain 2.69 · 10-5 mol of C atoms how many moles of Co atoms are present? Express your answer in scientific notation. How many Co atoms are present in 4.97 · 1022 Co[P(CH3)3]4 molecules? Express your answer in scientific notation. If a sample of C6H3(C(CH3)3)3 is found to contain 6.84 · 1019 C atoms how many moles of H atoms are present? Express your answer in scientific notation. If a sample of Li3N is found to contain 52.1 g of Li+ ions how many grams of Li...
Answer:
grams/ molar mass = moles I can't understand what "2.69 0 10-5" means, so I will use an example...
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Other solutions
What is the mass of one mole (molar mass) of neon? Round your answer to 2 places past the decimal. What is the mass of one mole (molar mass) of carbon dioxide, CO2? Round your ...show more
Answer:
See also: http://en.wikipedia.org/wiki/Neon http://en.wikipedia.org/wiki/Carbon_diox... http://en.wikipedia...
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What is the molarity of a solution of 10.0% by mass cadmium sulfate, CdSO4 (molar mass = 208.46 g/mol) by mass? The density of the solution is 1.10 g/mL. Question 22 answers A) 0.528 M B) 0.436 M C) 0.479 M D) 0.048 M E) 22.9 M
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I'm confused by my texbook b/c it says in order to determine the molecular formula I must follow these steps: molecular formula = (emp. form)n n is a small whole numer molecular form = n x emp. form then molar mass = n x emp. form mass solving for n...
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A gas has a density of 8.0 g.L-1 at 2.81 atm and 300.0 K. a). What is the molar mass of the gas? b). What is the molecular formula of the gas if it contains only C, H and F? If the compound contains 1 carbon atom? I found the molar mass to be 70.08....
Answer:
The key to it would be the atomic weights of carbon (12), hydrogen (1), and fluorine (19). Some combination...
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what volume of 1.45 M sodium phosphate (molar mass = 164) must you add to react with 25 mL of .830 M copper (II) Chloride (molar mass = 134.5) for stoichiometric reaction?
Answer:
2 Na3PO4 + 3 CuCl2 → Cu3(PO4)2 + 6 NaCl (25 mL) x (0.830 M CuCl2) x (2/3) / (1.45 M) = 9.5 mL Na...
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I'm studying about the catalysts on the transesterification of this microalgal oil and i need to use molar basis since it's stoichiometry, instead of mass basis. That's why i need to know the molar mass of the oil extracted from Chlorella vulgaris to...
Answer:
The fatty oil in Chlorella vulgaris is a mixture of triglycerides of mainly oleic acid, linoleic acid...
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So I know when you are finding molar mass you use the little numbers at the bottom (haha I can't remember what to call them) For example if you had H2O then you would take the atomic mass of Hydrogen (1.008) and multiply it by two and then you would...
Answer:
They're called subscripts, and yes, you could do it that way, or you could take the entire molar mass...
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Answer:
moles SO42- = 3.91 x 10^24 / 6.02 x 10^23 =6.50 moles Fe2(SO4)3 = 6.50/3 =2.17 mass = 2.17 x 399.91...
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