Q: 64 g of Na2SO4 • xH2O were heated to yield 2.84 g of Na2SO4 What is the value of x?
A: NOTE : I think it is 6.4 g because 64 g of Na2SO4•xH2O will yield much more than 2.84 g of Na2SO4…
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Q: 4.64 g of Na2SO4 • xH2O were heated to yield 2.84 g of Na2SO4 What is the value of x?
A: The decomposition reaction taking place on heating is Na2SO4•xH2O ------> Na2SO4 + x H2O
Q: Calculate the empirical formula of each substance from their spectrograms. 1) Co = 0.672 g, As =…
A: Given : Mass of Co = 0.672 g Mass of As = 0.569 g And mass of O = 0.486 g
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Q: Calculate the empirical formula of each substance from their spectrograms . 1) Co = 0.672g As =…
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Q: Calculate the empirical formula of each substance from their spectrograms. 1) Co = 0.672 g , As =…
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Q: Calculate the percent oxygen by mass in disilicon trioxide(Si2O3) to 3 significant figures.
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The compound NHxNO3 contains 5.04% hydrogen by mass. What is the value of x? Enter your response as a whole number.
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- How many hydrogen atoms are in each of the following: Part A: C2H5OH Express your answer as an integer. Part B: Ca(C2H5COO)2 Express your answer as an integer Part C: (NH4)2HPO4 Express your answer as an integer.4.64 g of Na2SO4 • xH2O were heated to yield 2.84 g of Na2SO4 What is the value of x?Calculate the percent oxygen by mass in disilicon trioxide(Si2O3) to 3 significant figures.
- The number of atoms of oxygen in a 0.01800-g sample of O3(g) is equal to the number of molecules in a 0.06085-g sample of CxH6. Determine the value of x.Calculate the empirical formula of each substance from their spectrograms.1) Co = 0.672 g , As = 0.569g , O = 0.486gUse the following atomic masses (in g/mol): K = 39.1; Mn = 54.94; O = 16; H = 1; P = 30.97; C = 12.01; Na = 23; Mg = 24.31; S = 32.06; Zn = 65.38; Cu = 63.55 Given the reaction: CH3COOH + NaOH -> CH3COONa + H2O, how many milligrams of CH3COOH is equivalent to 1mL of 1N NaOH?
- How many atoms of H does the notation 5 Fe(HOOCCH2COO)3 indicate? Express your answer as an integer.A given compound contains 23.8% S, 23.7% O, and 52.5% Cl by mass. Which compound below is consistent with these values. A) SOCl B)SOCl2 C)S2O2Cl3 D)SO2Cl E)SO2Cl23.137 A sample containing NaCl, Na2SO4, and NaNO3 givesthe following elemental analysis: 32.08 percent Na,36.01 percent O, 19.51 percent Cl. Calculate the masspercent of each compound in the sample.
- A certain organic compound has the formula C8H12O2. A sample of this compound weighs 1.05 grams. Calculate the number of hydrogen atoms contained in this sample. Round your final result to the nearest tenth.Given the following mixture of two compounds 60.00 g of X (MW =63.00 g/mol)(density 1.047 g/mL) and 680.00 mL of Y (65.00 g/mol))(density 1.013 g/mL), calculate the mass percent of X.The bitter-tasting compound quinine is a component of tonic water and is used as a protection against malaria. It contains only C, H, N and O. When a sample of mass 0.487 g was burned, 1.321 g of carbon dioxide, 0.325 g of water, and 0.0421 g of nitrogen were produced. The molar mass of quinine is 324 g/mol. Determine the empirical and molecular formulas of quinine. (Type your answer using the format CO2 for CO2 and use the order CHNO)empiricalmolecular