An amino acid contains by mass: 34.28% C, 6.71% H, 13.32% N, and 45.67% O. What is its empirical formula?   Question 3 options:   C3H7NO3   C2H5N2O3   C3H9N2O2

Q: A particular protein sample is found to have 1 atom of iron in its chemical formula. If the mass…

A: Mass percent expresses the solute concentration in any mixture. The division of weight of dissolved…

Q: Calculate the mass % of 2.50 g Na3PO4 + 10.0 g H2O

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Q: Heart disease is linked to high blood cholesterollevels. What is the percent composition of…

A: Percentage composition of each element defines the amount of that particular element present with…

Q: OCH 3

A: 1) Cyclohexane is parent alkane 2) Start numbering from substituent carbon means carbon number 1…

Q: Determine the number of hydrogen atoms in 2.50 mol of glucose, C6H12O6.  options:   12.0   none of…

A: Given  Number of mole of Glucose = 2.5 mole  Number of Hydrogen atom = ? 1 mole = Avogadro's…

Q: a hydrocarbon with an empirical formula of CH2 has a molar mass of 84.16 g/mol. what is the…

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Q: Question attached

A: Mass percent defines the concentration of element present in a compound in a percentage. Basically,…

Q: A vial stores 4 g of estradiol dissolved in an organic solvent. How many mols of estradiol are in…

A: Mass of estradiol in the vial = 4 g Molecular formula of estradiol = C18H24O2 Mass of one oxygen =…

Q: Combustion analysis of 63.8 mg of a C, H and O containing compound produced 145.0 mg of CO2 and…

A: Given data,  Mass of a C,H and O containing compound = 63.8 mg  Mass of CO2 = 145.0 mg  Mass of H2O…

Q: What is the molar mass of ibuprofen, C13H18O2? A) 206.3 g/mol B) 289.4 g/mol C) 29.0 g/mol D)…

A: Molar mass of C = 12.01 g/mol  Molar mass of H = 1.008 g/mol  Molar mass of O = 16.00 g/mol

Q: Whats the empirical formula of Al4O12

A: Empirical formula The empirical formula is the molecular formula of the compound that represents the…

Q: Please tell me the formula to find the number of nitrogen atoms in 5.00g of compound glycine…

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Q: Calculate the % composition of dextrose ( or glucose), C6H12O6

A: The molecular formula of glucose is C6H12O6, from the formula it is clear that 1mole of dextrose…

Q: What mass of methane is required to produce 1.130 kg of carbon dioxide during combustion? (Assume…

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Q: Calculate the number of moles in 17.8 g of the antacid magnesium hydroxide, Mg(OH)2?

A: Given: Mass of magnesium hydroxide, Mg(OH)2= 17.8 g Molar mass of magnesium hydroxide, Mg(OH)2 =…

Q: What would you need to do to make C14H21O14 an empirical formula?

A: To find emperical formula.

Q: 0.333 g of a hydrocarbon (CxHy) was analyzed by combustion analysis and 1.009 g of CO2 (MM = 44.01…

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Q: An unknown compound has a molar mass of 215.22 g/mol.  In the lab, the empirical formula was found…

A: Given, the empirical formula of the compound: C2H3O the molar mass of the compound = 215.22 g/mol We…

Q: 2. How many grams of K2SO4 are there in 0.123 mole of K2SO4? (Hint: you need to calculate the molar…

A: Using molar mass of K2SO4 and mole concept we can solve this problem.

Q: What is the empirical formula for the compound P4O6? Express your answer as a chemical formula.…

A: Empirical formula is formula in which elements are present in simplest whole ration. To obtain…

Q: Determine the molecular formula of a hydrocarbon compound with 62.02% C, 10.43% H, and 27.54% O. Its…

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Q: If you used twice as much copper (II) sulfate 5 hydrate at the beginning of the lab?, would you…

A: Given: If you used twice as much copper (II) sulfate 5 hydrate at the beginning of the lab, would…

Q: Which of the following is an empirical formula?     C22H34O10     C6H12O3…

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Q: Threonine is an amino acid with the formula C4H9NO3C4H9NO3. Determine the number of moles of carbon…

A: Formula of Threonine = C4H9NO3  Mass of threonine = 48.15 g Moles of carbon = ?

Q: Determine the quantity of moles of propylene (C₂H.) in 25.0 6.D of the substance.

A: In this, the mass of propylene is given. To find the moles, the mass of 1 mole of the given…

Q: Determine the number of moles in 4.00 × 10²³ formula units of MgCl₂

A: The given compound MgCl2 is made up of one magnesium atom and two chlorine atoms. One mole of…

Q: The number of grams of 1.38 x 1022 molecules of C12H22011 is: 0.0229 g 7.84 g 342 g 2.29 g

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: Determine the number of moles in 6.94 × 10²³ formula units of CaCl₂

A:

Q: Determine the number of moles in 5.73 × 10²³ formula units of CaCl₂.

A: 1 mole = 6.022 x 1023 entities

Q: This is an impossible formula. If it were real, determine the molar mass of:Fe2Si1O4Remember that…

A:

Q: A certain protein was found to contain 0.420% iron by mass. Determine the minimum molecular mass of…

A: Given: Percent by mass of iron = 0.420 %.

Q: An “unnatural” sugar found as a component of hemicellulose was found to contain 40.00% C and 6.71% H…

A:

Q: What is the percent by mass of carbon in the amino acid valine (C5H11O2N)?

A: The percent mass of an element in a compound can be calculated by using the following formula:

Q: QUESTION 29 Combustion analysis of 63.8 mg of a C, H and O containing compound produced 145.0 mg of…

A: Given that 145 mg of CO2 and 59.38 mg of H2O. We will calculate the empirical formula for this…