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laila [671]
3 years ago
12

What is the volume of a board that measures 1.8cm by 8.8cm by 30.5cm?

Chemistry
1 answer:
Colt1911 [192]3 years ago
7 0
438,12 cubic centimeters
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A gas at 20.0°C is increased to 40.0°C, will its volume: if the original volume is 1.00 l, what would the new volume be
Leona [35]

Answer:

2.0 l

Explanation:

When for 20 °C volume is 1 l then for 40°C is going to be 2 l

20-------1

40-------x

x=(40*1):20

6 0
3 years ago
Suppose that a fictitious element, x, has two isotopes: 59x (59.015 amu) and 62x (62.011 amu). the lighter isotope has an abunda
professor190 [17]

The atomic mass of the element would simply be equal to the sum of the weighted average of each isotope, that is:

atomic mass = 59.015 amu * 0.717 + 62.011 amu * (1 – 0.717)

<span>atomic mass = 59.863 amu</span>

4 0
3 years ago
What is the parameter for finding the ∆H of a body...?​
11111nata11111 [884]

Answer: ΔG=ΔG0+RTlnQ where Q is the ratio of concentrations (or activities) of the products divided by the reactants. Under standard conditions Q=1 and ΔG=ΔG0

Explanation: hope this helps im sorry if i didnt

7 0
2 years ago
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2 years ago
A 12.0% sucrose solution by mass has a density of 1.05 gem, what mass of sucrose is present in a 32.0-mL sample of this solution
natulia [17]

Answer:

Option C. 4.03 g

Explanation:

Firstly we analyse data.

12 % by mass, is a sort of concentration. It indicates that in 100 g of SOLUTION, we have 12 g of SOLUTE.

Density is the data that indicates grams of solution in volume of solution.

We need to determine, the volume of solution for the concentration

Density = mass / volume

1.05 g/mL = 100 g / volume

Volume =  100 g / 1.05 g/mL → 95.24 mL

Therefore our 12 g of solute are contained in 95.24 mL

Let's finish this by a rule of three.

95.24 mL contain 12 g of sucrose

Our sample of 32 mL may contain ( 32 . 12) / 95.24 = 4.03 g

7 0
3 years ago
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