How many calories of heat (energy) would it take to heat 25.0 g of water from 35.0 °C to 45.0 °C? cal How many kilocalories of heat (energy) would it take to heat 183.0 g of water from 19.0 °C to 75.0 °C? kcal TOOLS x10

5,6,7

A chemist carefully measures the amount of heat needed to raise the temperature of a 854.0 mg sample of a pure substance from -6.7 °C to 16.2 °C. The experiment shows that 2.72 1 of heat are needed. What can the chemist report for the specific heat capacity of the substance? Round your answer to 3 significant digits. 0.P X

Titanium (Ti) was heated to a temperature of 35 °C. If the initial temperature of 35.0 g of Titanium was 24.6°C, how many calories was required to raise the temperature? The specific heat of Ti is 0.125 cal/g °C.

How much heat is needed to raise the temperature of 100.0 grams of water from 25.0°C to 55.0°C? Specific heat capacity of water is 4.184J/g°C. 20920 O 10460 12552 23012

The reaction for the combustion of propane is   C3H8(g)+5O2(g)⟶3CO2(g)+4H2O(l)         Δ?=−526.3kcalmol   How much heat is released when 58.8g of propane is burned?   Heat: ____ kcal

Course Home 14b70488393394d50bcd03f6a#10001 14 of 15 > I Review | Constants | Periodic Table Substance cal/(g °C) J/(g C) cal/(g °C) J/(g- °C) Substance Elements Compound Aluminum, Al(s) 0.214 0.897 Ammonia, NH3 (g) 0.488 2.04 Сopper, Cu(s) Ethanol, C2H; OH(1) 0.0920 0.385 0.588 2.46 Sodium chloride, Gold, Au(s) 0.0308 0.129 NaCl(s) 0.207 0.864 Iron, Fe(s) Water, H2O(1) 1.00 4.184 0.108 0.452 Silver, Ag(s) 0.0562 0.235 Water, H2O(s) 0.485 2.03 Solid (at 25 °C) Density (g/mL) Solid (at 25° C) Density (g/mL) 0.26 Diamond 3.52 Cork Wood (maple). 0.75 Iron 7.86 Ice (at 0 C) 0.92 Copper 8.92 1.59 Silver 10.5 Sugar 11.3 Bone 1.80 Lead Gold 19.3 Salt (NaCl) 2.16 Aluminum 2.70 INTL 2 6:09

when a 0.55-g of olive oil is burned in a calorimeter the hear released increases the temperature of 360 g of water from 22.7 c to 36.4 c . what is the energy value for the olive oil in kcal/g?

Consider the following molecule. How many hydrogens are in this molecule? OH авдав -NH. NH 00000 H₂N. О 18 O 14 О 17 О 16 О 15 CH 3 OH

An unknown sample of coal is burned in an apparatus with a calorimeter constant of 0.72 kJ/°C. When a 0.329-g sample is used, the temperature change is 8.49°C. What is the energy density of the sample in kJ/g?   Round your answer to 2 decimal places.