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Katarina [22]
3 years ago
9

Answer ASAP Homework

Chemistry
2 answers:
FinnZ [79.3K]3 years ago
8 0

Answer:

wheres the question??????

Elza [17]3 years ago
8 0

Answer:

yes where is question please send questions

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Assuming the reaction is first order in sucrose, determine the mass of sucrose that is hydrolyzed when 2.75 L of a 0.130 M sucro
Advocard [28]

Answer:125.84g

Explanation:Sucrose is dissacharides an organic compound in the class of carbonhydrate with the chemical formula C11H22O11.molar concentration is given by number of moles/Volume,this implies that moles=molar concentration ×Volume=0.130M×2.75L=0.3575moles.

Furthermore,number of moles=Mass of Sucrose/molecular Mass of Sucrose.

From it's formular C11H22O11, molecular Mass is the addition of the mass number which is 12 for C,2 for H and 16 for oxygen,O.so molecular Mass of Sucrose is (12×11)+(2×22)+(16×11)=352.

So mass =moles ×molecular mass=0.3575moles×352g/moles=125.84g

3 0
3 years ago
How many grams of KCIO3 are needed to produce 5.00 of O2 at STP?
Arlecino [84]
2KClO₃ → 2KCl + 3O₂

mole ratio of KClO₃ to O₂ is 2 : 3

∴ if moles of O₂ = 5 mol

then moles of KClO₃ = \frac{5 mol   *   2}{3}

                            = 3.33 mol


Mass of KClO₃ needed = mol of KClO₃ × molar mass of KClO₃

                                      = 3.33 mol × ((39 × 1) + (35.5 × 1) + (16 × 3) g/mol

                                      = 407.93 g
6 0
3 years ago
What is the total number of protons in the nucleus of calcium -42?
amm1812
Since the atomic number of calcium is 20. The number of protons is also 20.
5 0
3 years ago
0.00001011 kilograms is a larger mass than 0.001011 grams. True or False
valentina_108 [34]
True...............................
6 0
3 years ago
Read 2 more answers
Write the chemical equation for the following reaction The elements sodium and chlorine combine to yield the compound sodium chl
Shkiper50 [21]

Answer:Na2S04 + HCl gives

NaCl + H2So4

Explanation:

Displacement reaction

8 0
3 years ago
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