115 grams of kcl is dissolved in 750 ml of water (assume density = 1.005 g/ml). what are the molality, molarity, mole fraction, mole percent, % mass, ppm by mass? what would be the freezing point and boiling point of that solution assuming the kf of water is 1.86 oc/m and kb is 0.512 oc/m (assume that kcl fully dissociates with no pairing of ions)?

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .

explanation:

wheres the pic