Answer: 1.9 moles
Explanation:
Step 1: Determine how many grams of a substance are in the problem.
From the question; we have 62 grams of Oxygen
Step 2: With the aid of a periodic table, the atomic mass of Oxygen is 16g, but since oxygen is diatomic i.e O2, it's molecular mass would be 32g.
Step 3: Applying the mathematical expression for finding moles
Moles = Mass/ Molar Mass
= 62g/ 32 g
= 1.9
∴ 62g of oxygen is equivalent to 1.9 moles.
Answer:
12.33 cal/sec
Explanation:
As we know,
1 Kcal = 1000 cal
So,
0.74 Kcal = X cal
Solving for X,
X = (0.74 Kcal × 1000 cal) ÷ 1 Kcal
X = 740 cal
Also we know that,
1 Minute = 60 Seconds
Therefore, in order to derive cal/sec unit replace 0.74 Kcal by 740 cal and 1 min by 60 sec in given unit as,
= 740 cal / 60 sec
= 12.33 cal/sec
Answer:
i don't have one :(
Explanation:
just doing for points sorry plz mark me as brainliest
I believe it would be transfering heat into a cold class or vise versa
Hope this helpesss (':
