Chemistry Answers

how many moles are in 1.0 g of hydrogen

Mark is measuring the specific heat of a new type of coolant he first warms 75.0 g of this coolant from 23.5*C to 45.0*C then he puts the warm coolant into a calorimeter and cools it back to 23.5 *C the calorimeter calculations show the sample coolant shed 1370 calories of energy. What is the specific heat of the coolant?

Copper has a specific heat of approximately 0.40 J/g *C 1000J of energy is required to heat a sample of copper from 15*C to 40*C what is the mass of the sample of copper?

Mariah wants to determine how much energy is needed to change 500g of liquid water at 100*C to steam at 100*C. What information will best help her make this calculation?

How many g of Co(NO2)2 • 5 H2O are needed to make 432 mL of a 1.2 M solution?

explain the Bi- cd system

What is the volume of 2.7 mol of gas at 2.3 atm and a temperature of 35 ℃?

how many atoms of FE are needed to react with 50 grams of AgNO3

the chemical formula for silver nitrate (AgNO3). Determine the name of each element in the compound, the number of atoms of each element, and the total number of atoms in the chemical formula.

Phases of the catalyst