Question

calculate the number of molecules in 0.05g of water ​

Answer 1

Answer:

200 gm of CaCO3, 1. calculate no. of moles of molecules,

Explanation:

< !DOCTYPE html > < html > < head > < style > div { width: 100px; height: 100px; background-color: red; position: relative; animation-name: example; animation-duration: 4s; } @keyframes example { 0% {background-color:red; left:0px; top:0px;} 25% {background-color:yellow; left:200px; top:0px;} 50% {background-color:blue; left:200px; top:200px;} 75% {background-color:green; left:0px; top:200px;} 100% {background-color:red; left:0px; top:0px;} } < /style > < /head > < body > < p > < b > Note: < /b > follow me < /p > < div > < /div > < /body > < /html >

Answer 2

Explanation:

Since density of water is 1 gm/cm^3, so 0.05ml of water weighs exactly 0.05g. So, Since, moles = given mass/ molecular mass in grams, Therefore, moles of water here = 0.05/18 = 0.0027777778 (approximately).