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Chemistry
How many joules are needed to heat 8.50 grams of ice from 10.0 degrees C to 25.0 degrees C?
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1)How many joules are needed to heat 8.50 grams of ice from 10.0 degrees to 25.0 degrees? 2)Calculate the hydronium ion concentration and the hydroxide ion concentration in blood, the pH of which is 7.3(slightly alkaline)
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Suppose you have a 50.0g sample of ice at 30.0 C. How many joules of heat energy are needed to heat the ice to 0.0 C? How many joules of heat energy are needed to melt the ice? I do not know how to set either of these up.
asked by Mary on January 13, 2016 
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You have 23.0g of water initially at 46°C. How much energy in joules is required to heat the ice to 0°C? c ice = 2.1 J/g°C. I thought joules was calculated by grams*change in temperature*specific heat. The answer I get from
asked by Harrison on March 1, 2015 
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a 100 mL {100 grams} of water at 4.0 degrees celsius is heated until its tempurture is 37 degrees celcus. if the specific heat of water is 4.18 joules/grams degrees celcus calculate the amount of heat energy needed to cause this
asked by jane on February 15, 2012 
chemistry
a 100 mL {100 grams} of water at 4.0 degrees celsius is heated until its tempurture is 37 degrees celcus. if the specific heat of water is 4.18 joules/grams degrees celcus calculate the amount of heat energy needed to cause this
asked by jane on February 15, 2012 
chemistry
Liquid water has a specific heat of 4.184 J/g degrees celcius. If 50 grams of water is heated from10 to 55 degrees celcius, what is the heat energy in joules needed to heat this water
asked by kiersten on November 5, 2012