d. a has a gallium\'s point near room temperature so can be melted by holding it

Question

d. a has a gallium's point near room temperature so can be melted by holding it in hands lf it b, 39.8 melting point is 3028 K, what is that c. 0.0°C in your 29.8 C d. 575.8 C 19. e, 302.8 c What is by 14.3 g of mercury? Density 13.6 g/ml. ml. occupied 372 b, 1.05 ml. d. 193 ml. c, 0.236 mL e, 4.82 ml. 20. Which element has the largest atomic radius? 21. The number of electrons present in the s orbitals in the outermost electron shell of the alkaline earth (Group MA) metals is b, three five c, four 22. What mass of silver nitrate, AgNO, is required to prepare 800. g of 3.50% solution of AgNos? a. 24.6 g b, 26,7 g d, 28.0 g e, 25.5 g c, 27.0 g 23. What is the total number of electrons in the fifth energy level (n-5). 16 50 25 Which of the following is the electron configuration of F 1s21 b, 1s22s22p e. 1s22s32p The phosphorus pentachloride molecule is nonpolar and contains no lone (unshare phosphorus atom. What are all of the possible ClP-Cl bond angles? b. 90", 120, and 180° d, 1200 C. 90 and 180° e, 1800 The element whose symbol is ca is a, mium. b, c, carbon. d, calcium e. none of these.

Explanation / Answer

answer for question no. 19

given :mass of mercury =14.3 gms,

density of mercury = 13.6 gm/ml,

now we can calculate the volume of mercury by using the formula as,

we know that density = mass /volume ,

then rearranging the formula for calculating volume as,

volume= mass /density,

volume = 14.3 gms/ 13.6 g/ml,

volume = 1.0514 ml,

therefore option 'b' =1.05 ml is correct

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