Kansas City, Missouri, is often abbreviated as KC (abbreviations often refer to the metro area). It is officially nicknamed the City of Fountains. With over 200 fountains, the city claims to have the second most in the world, just behind Rome.

6 0

3 years ago

A calorimeter made from a can is used to measure the calories in a peanut. During the experiment, the

kari74 [83]

Answer:

The heat generated per gram of sample in calories is 0.87 g

Explanation:

Given that,

A calorimeter made from a can is used to measure the calories in a peanut.

During the experiment, the measured calories were 35% of the true/accepted value given by references

Suppose, the mass of peanut is 0.4 g and find the

We need to calculate the heat generated per gram of sample in calories

Using formula of heat generated

$q=\dfrac{q_{penut\ calorimeter}}{m_{peanut}}$

Put the value into the formula

$q=\dfrac{0.35}{0.4}$

$q=0.87\ g$

Hence, The heat generated per gram of sample in calories is 0.87 g

3 0

3 years ago

How many moles of c9h8o4 are in a 0.300 g tablet of aspirin?

soldi70 [24.7K]

<span>1.67 x 10^-3 moles Calculate the molar mass of C9H8O4 Carbon = 12.0107 Hydrogen = 1.00794 Oxygen = 15.999 C9H8O4 = 9 * 12.0107 + 8 * 1.00794 + 4 * 15.999 = 180.1558 Now divide the mass you have by the molar mass 0.300 g / 180.1558 g/mole = 1.665225 x 10^-3 Round to 3 significant figures 1.67 x 10^-3</span>

5 0

3 years ago