Cho 3,9g kim loại kiềm tác dung vs nước ( dư ) thu được 1,12 lít khí hidro ( đktc ) và dung dịch A Xác định tên kim loại

Tính thể tích dung dịch HCL 1M cần để trung hòa dung dịch A

the correct answer is boyle

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm

there is none because earth is stationary and flat.

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3