SpletDensity is the mass of a substance that would fill 1 cm 3 at room temperature. Relative atomic mass The mass of an atom relative to that of carbon-12. This is approximately the sum of the number of protons and neutrons in the nucleus. Where more than one isotope exists, the value given is the abundance weighted average. Isotopes Splet11. A calcium mineral consisted of 29.4g calcium, 23.5g sulphur and 47.1g oxygen by mass. What is the empirical formula of the mineral? ... The molecular mass of a molecule …
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Splet16. nov. 2024 · Solution: To find the mass we should first know the atomic weight of the Sulphur. The atomic weight of Sulphur is 32 g The mass of 4 grams atoms of Sulphur is … SpletA. Ether B. Mathene C. Sulphur D. Hydrogen. Answer: A. Q12. What is the solubility of salt if 0.4g of it is obtained on evaporation of 200CM3 of its saturated solution to dryness? A. 0.08 gdm-3 B. 2.00gdm ... An organic compound has the empirical formula CH 2 IF ITS molar mass is 42 gmol-1 what is its molecular formula> [H = 1.0, C = 12.0] A. C ... floyd county animal services
Sulphur (S): Uses, Atomic Number, Chemical Properties - Embibe
SpletA mixture of 8g of iron and 4g of sulphur is heated. The elements combine to produce iron (II) sulphide, FeS. How much iron sulphide will be produced? Fe +S> Fes Expert Solution Want to see the full answer? Check out a sample Q&A here See Solution star_border Students who’ve seen this question also like: Chemistry Chemical Foundations. 1RQ Splet31. mar. 2024 · sulfur (S), also spelled sulphur, nonmetallic chemical element belonging to the oxygen group (Group 16 [VIa] of the periodic table), one of the most reactive of the elements. Pure sulfur is a tasteless, odourless, brittle solid that is pale yellow in colour, a poor conductor of electricity, and insoluble in water. It reacts with all metals except gold … SpletCalculate the formula unit masses of ZnO, Na 2 O, K 2 Co 3 given atomic masses of Zn=65 u, Na = 23 u, K = 39 u, C = 12u, and O = 16 u. Ans. The formula unit mass of (i) ZnO = 65 u + 16 u =.81 u (ii) Na 2 O = (23 u × 2) + .16 u : = 46u+ 161.u. = 62 u (iii) K 2 CO3 = (39 u × 2) + 12 u + 16 u × 3 = 75 u + 12u = 48u = 138u NCERT TEXTBOOK PAGE 42 1. green creative 36630