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Anna71
7 days ago
5

Give the nuclide symbol for an atom that has mass number 64 and 35 neutrons.

Chemistry
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If 3.8 kcal is released by combustion of each gram of glucose, how many kilocalories are released by the combustion of 1.50 mol
castortr0y [3046]
684 kcal. One mole of glucose weighs roughly 180g. Given that 1g of glucose releases 3.8 kcal, we calculate for 1 mole of glucose: 180g -> 180g * 3.8 kcal/g = 684 kcal.
7 0
3 months ago
A student adds 10.00 mL of a 2.0 M nitric acid solution to a 100.00 mL volumetric flask. Next, 50.00 mL of a 0.00500 M solution
Anarel [2989]

Answer:

0.20M of nitric acid

0.00250M of KSCN

Explanation:

In the case of nitric acid, the solution's dilution changes from 10.00mL to 100.00mL, resulting in a 1/10 dilution. Given the original concentration of nitric acid is 2.0M, the updated concentration becomes: 2.0M×(1/10)=0.20M of nitric acid

Similarly, the dilution of KSCN extends from 50.00mL to 100.00mL, equal to a 1/2 dilution. Consequently, the new concentration of KSCN turns out to be:

0.00500M × (1/2) = 0.00250M of KSCN

I hope it aids you!

5 0
3 months ago
Determine ΔT if T1 = 5oC and T2 = 123oC
eduard [2782]

Answer:

73oc

Explanation:

The change in temperature is calculated as T=123-50=73

5 0
3 months ago
1. The specific heat capacity of iron is 0.461 J g–1 K–1 and that of titanium is 0.544 J g–1 K–1. A sample consisting of a mixtu
VMariaS [2998]

Answer:

The final temperature is 80.1 °C

Explanation:

Firstly, we should express the equation clearly and organize the details before conducting the calculations.

7 0
3 months ago
Read 2 more answers
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