Plaster of Paris is a mixture of powdered and heat-treated gypsum. Gypsum (Ca(SO4).2H2O) Basic Attributes Molecular Weight: 154.16 Exact Mass: 171.935455 EC Number: 231-900-3 UNII: 4846Q921YM ICSC Number: 1734 DSSTox ID: DTXSID9035674|DTXSID7047514 Characteristics PSA: 90.6 ...
What is the empirical formula of a compound that is 21.96% S (sulfur) and 78.04% F (fluorine) by weight? Determine the formula weight (molecular mass) of each of the following substances: (a) calcium sulfate, CaSO4; (b) propane, C3H8; (c) the sulfa drug sulfanilamide, C6H4SO2(NH2)...
Exact Mass: 196.91800 EC Number: 231-869-6 Characteristics PSA: 36.92000 XLogP3: 1.12180 Appearance: Red Solid Density: 2,01 g/cm3 Melting Point: 58 °C(lit.) Boiling Point: 1190 °C Water Solubility: H2O: 1980 g/L (20 ºC) ...
Write the formula for each of the following covalent compounds. a. carbon tetrachloride b. phosphorous pentoxide c. silicon dioxide d. dinitrogen trioxide Compound has a molar mass of 283.89 g/.mol and the following composition: Phosphorus: 43.64%, Oxygen: 56.36%. Write the molecular formula o...
3 x 1021 molecules What is the percentage composition of CaSO4? 29.44% Ca‚ 23.55% S‚ 47.01% O What mass of calcium bromide is needed to prepare 150.0 mL of a 3.50 M solution? (Assume that the molecular weight of CaBr2 is 200.618 g/mol) 105 g Nitrous oxide (N2O)‚ or ...
atomic mass mass of entity m f, m kg (3) (molecule, formula unit)atomic mass constant m u m u = m a(12C)/12 kg (4)mol-1(2), (5)molar mass M M B = m/n B kg (1) The words ‘of substance' may be replaced by the specification of the entity.Example When the amount ...
What is the molar mass of this compound? Write the formula of ionic compounds. How can you figure this out? a) Calcium nitride? What is the formula for the compound that forms between the potassium ion and the bromide ion? What is the formula for the ionic compound formed by the ions ...
CaSO4的摩尔质量和分子量为{1,数字}。 由硫酸钙- CaSO4组成 元素标志原子质量原子#质量百分比 鈣Ca40.078 g/mol129.4387% 硫S32.065 g/mol123.5529% 氧O63.9976 g/mol447.0085% 硫酸钙 元素 质量百分比氧63.9976g氧63.9976g鈣40.078g鈣40.078g硫32.065g硫32.065gCaSO4 原子#氧4氧4鈣1鈣1硫1硫...
What mass of sodium hydroxide, NaOH, would be required to produce 16 g of the antacid milk of magnesia [magnesium hydroxide, Mg(OH)2] by the following reaction? MgCl2(aq)+2NaOH(aq)→Mg(OH)2(s)+2NaCl(aq)MgCl2(aq)+2NaOH(aq)→Mg(OH)2(s)+2NaCl(aq) Solution The approach used pre...
C6H8O7 + CaSO4的摩尔质量和分子量为{1,数字}。 由C6H8O7 + CaSO4组成 元素标志原子质量原子#质量百分比 碳 C 72.0642 g/mol 6 21.9531% 氫 H 8.0635 g/mol 8 2.4564% 氧 O 175.9934 g/mol 11 53.6134% 鈣 Ca 40.078 g/mol 1 12.2091% 硫 S 32.065 g/mol 1 9.768% C6H8O7 + CaSO4 ...