3 years ago

Which of the following are the starting substances in photosynthesis?

Chemistry

2 answers:

djverab [1.8K]3 years ago

6 0

A. water and carbon dioxide

Misha Larkins [42]3 years ago

3 0

A: water and carbon dioxide.

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Calculate the grams of solute in each of the following solution: 278 mL of 0.038 M Fe2(SO4)3

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Answer: 4.22 grams of solute is there in 278 ml of 0.038 M $Fe_2(SO_4)_3$

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

$Molarity=\frac{n}{V_s}$

where,

n = moles of solute

$V_s$ = volume of solution in L

Now put all the given values in the formula of molality, we get

$0.038M=\frac{n}{0.278L}$

$n=0.0105mol$

mass of $Fe_2(SO_4)_3$ = $moles\times {\text {Molar Mass}}=0.0105\times 399.88g/mol=4.22g$

Thus 4.22 grams of solute is there in 278 ml of 0.038 M $Fe_2(SO_4)_3$

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Nady [450]

Answer:

taxonomy

Explanation:

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Reika [66]

You may be looking for neurotransmitters

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3 years ago

Which is an example of making a quantitative observation?

Elanso [62]

Answer:

A) measuring mass of metal used in a reaction

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2 years ago

Identify which sets of Quantum Numbers are valid for an electron. Each set is ordered (n,ℓ,mℓ,ms).

skad [1K]

3,2,0,1/2

1,0,0,1/2

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4,2,1,1/2

2,1,-1,-1/2

THEY ARE VALID

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