Select the correct answer. A student places an object on a balance. Which measurement might the student record based on the balance reading?

A.
259 kelvins
B.
2.4 kilograms
C.
12.5 amperes
D.
17.1 millimeters

Using the first volume and temperature reading on the table as v1 and t1, solve for the unknown values in the table below. remember to use the rules of significant figures when entering your numeric response.

Calculate the standard enthalpy of formation of liquid methanol, ch3oh(l), using the following information: c(graphite) + o2 latex: \longrightarrow ⟶ co2(g) latex: \delta δ h° = –393.5 kj/mol h2(g) + o2 latex: \longrightarrow ⟶ h2o(l) latex: \delta δ h° = –285.8 kj/mol ch3oh(l) + o2(g) latex: \longrightarrow ⟶ co2(g) + 2h2o(l) latex: \delta δ h° = –726.4 kj/mol

The molar mass of iron(fe) is 55.8 g/mol. what is the mass in grams of 2.25 moles of iron?