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Mars2501 [29]
4 years ago
11

How many moles are in 27.5 grams of CaCO3

Chemistry
1 answer:
raketka [301]4 years ago
8 0

Answer:

The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles CaCO3, or 100.0869 grams.

Explanation:

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Why benzene is called aromatic compound according to Huckel’s rule?​
scoundrel [369]

Answer:

It obeys rule

Explanation:

Benzene is an aromatic hydrocarbon because it obeys Hückel's rule.

6 0
3 years ago
A small-sized woman has 6.4 x 10-3 moles of hemoglobin (molar mass of hemoglobin = 64, 456 g/mol) in her blood. Show your work
nadezda [96]

Answer: 412.52 g

Explanation:

64456 x 6.4 x 10^-3 = 412.5184

Tip: Look at the units and figure out the equation needed to find the answer

3 0
3 years ago
Read 2 more answers
A sample of gas occupies 17 mL at –112°C. What volume does the sample occupy at 70°C?
Snowcat [4.5K]

final answer is

V

2

=

4

×

10

1

 

mL

8 0
3 years ago
Which of the followings are true about D-glucose and L-glucose? A. They are furanose B. They are stereoisomers C. They are enant
zaharov [31]

Answer:

B. They are stereoisomers

C. They are enantiomers

Explanation:

Let us consider all the options

A. D and L-glucose are not necessarily furanose, they can also be in free form (open chain) or as a six-membered ring (pyranose)

B. These sugars are stereoisomers as they have the same molecular formula, same bonds but with the different spacial arrangement.

C. Two structures are called enantiomers, if they are stereoisomers and are mirror images of each other and are not-superimposable. The given pair of structures satisfy these conditions

D. Epimers are diastereoisomers (same molecular formula and connectivity having a different spacial arrangement but are not mirror images and non-superimposable) with only one different stereocenter (if there are more than one). This is not the case

E. All monosaccharides (any sugar that cannot be hydrolysed to a simpler sugar) are reducing sugars. So, this option is invalid

4 0
3 years ago
75 ml of lemon juice are added to 50 ml of water. What is the percent by volume
natita [175]

Answer:

60%

Explanation:

Solute = the fruit juice  = 75mL

Solution= solute + solvent = 75+50 = 125mL

% of solute = solute/ solution  × 100 %

= 75/125  × 100 %

= 3/5 × 100 %

= 3 × 20 %

= 60%

I hope this was helpful, please rate as brainliest

8 0
3 years ago
Read 2 more answers
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