ashleeeeeeee7373 ashleeeeeeee7373

16-01-2017
Chemistry

contestada

How much energy is needed to warm 7.40g of water by 55 degress C?

Respuesta :

AnnaMarie714 AnnaMarie714

16-01-2017

E = mCdT
E = energy, m = mass, C = specific heat capacity, dT = change in temperature.
526 = 0.074C x 17
E = 0.074C x 55
Divide the equations
E/526 = (0.074C x 55)/(0.074C x 17) = 55/17
E = (55 x 526)/17 = 1702 J

Answer Link

Otras preguntas

Why is it a good idea to restate what you heard someone say in your own words? this shows that you care about what the person has said. this demonstrates to the

what fraction and whole number does the model 4/4 represent?

The data below are taken from a test of a petrol engine for a motor car. power output 150 kW fuel consumption 20 liters per hour energy content of fuel 40

the intersection of roads M and N creates a 41.4 angle. What are the complementary and supplementary angles of this intersection A. The complementary angle is 4

Only 6,7,8 pls and thx

I need help with this please respond in complete sentence and explain , if you troll i will REPORT

Am I correct?! Which pathway is correct? >>a.) DNA to RNA to Proteins b.) proteins to RNA to DNA c.) DNA to Proteins to RNA d.) RNA to DNA to Proteins

What is the component of the body’s metabolism that provides the energy required to maintain essential body processes such as respiration, circulation, and temp

What determines the pace of the rythem? A) tempo B) sycopation C)tone color D)texture

who is most responsible for the deaths of romeo and Juliet?