Hello.
The answer is 1417.7
Its 1417.7 grams becasue you have to convert the moles to grams.
<span /><span><span>A mole is the amount of pure substance containing the same number of chemical units as there are atoms in exactly 12 grams of carbon-12 (i.e., 6.023 X 1023).
</span><span>a coherent, typically large body of matter with no definite shape.
Have a nice day</span></span>
Answer:
20.25 W
Explanation:
Applying,
P = I²R.................... Equation 1
Where P = Power, I = current drawn by the test light, R = Resistance of the test light
From the question,
Given: I = 1.5 A, R = 9.00 Ω
Substitute these values into equation 1
P = (1.5²)(9)
P = 2.25×9
P = 20.25 W
Concentration of the solution (% mass) = 4%
<h3>Further explanation</h3>
<em>Rosa prepared a salt water solution by mixing 120 mg of water with 5 mg of common salt, what concentration is the solution she prepare?</em>
<em />
<em />
<em />
mass solute=mass of salt=5 mg
mass solution :
mass solute(salt)+mass solvent(water) :
Answer:
665 kJ
Explanation:
We assume that carbohydrates and protein each have 4 kilocalories per gram, and that fat has 9 kilocalories per gram. Then the number of kilocalories in the peanut butter is ...
4(6 +9) +9(11) = 159 . . . . kilocalories
Each kilocalorie translates to 4.184 kilojoules, so the total is ...
(159 kCal)(4.184 kJ/kCal) = 665.256 kJ
2 Tbsp of crunchy peanut butter contains about 665 kJ of energy.
Density = 0.601 g/mL
Volume = 7.25 mL
D = m / V
0.601 = m / 7.25
m = 0.601 x 7.25 => 4.35725 g
hope this helps!
