How many Joules of heat are required to heat 75g of ice from -15℃ to 235℃?

78000 J

Chemistry

Thermodynamics

Specific Heat Formula: q = mcΔT

Math

Pre-Algebra

Order of Operations: BPEMDAS

Step 1: Define

Identify variables

[Given] m = 75 g

[Given] c = 4.184 J/g °C

[Given] ΔT = 235 °C - -15°C = 250 °C

[Solve] q

Step 2: Solve for q

Step 3: Check

Follow sig fig rules and round. We are given 2 sig figs as our lowest.

78450 J ≈ 78000 J

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).