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Andrei [34K]
3 years ago
5

Balance the chemical equation.Au plus HC l plus HNO 3 right arrow AuC l Subscript 3 Baseline plus NO plus Upper H 2 Upper OAu+HC

l+HNO3→AuCl3+NO+H2OAssume the coefficient ofUpper H 2 Upper OH2O is22. What is the balanced​ equation?nothing Au plus nothing HC l plus nothing HNO 3 right arrow nothing AuC l Subscript 3 Baseline plus nothing NO plus nothing Upper H 2 Upper O
Chemistry
1 answer:
tino4ka555 [31]3 years ago
5 0

Answer:

Au+ 3HCl + HNO_3 \to AuCl_3+NO+2H_2O

Explanation:

Chemical Equations are representations of chemical reactions in terms of the symbols and formulae of the elements and compounds involved. A chemical equation usually have the reactant at the left hand side while the product is on the right hand side.

A chemical Equation is of little or no value if is not in balanced equation. When an equation is balanced , the total number of atoms of any element on the left-hand side of it must be equal to the total number of atoms of that element on the right hand side.

in the given question; we are given a word problem of chemical symbol to  compute and also to balance the chemical equation.

From below; the chemical equation can be written as:

Au+ HCl + HNO_3 \to AuCl_3+NO+2H_2O

From the above  equation we will notice  that  it is not truly balanced ; so th balanced equation can be written as:

Au+ 3HCl + HNO_3 \to AuCl_3+NO+2H_2O

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The ML  of 0.85  m NaOH    required   to  titrate  25 ml of  0.72m hbr  to  the  equivalence  point  is calculated  as  follows

calculate  the moles  of HBr used

moles  = molarity  x  volume

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write the  equation  for  reaction

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from   reacting   equation the  mole ratio  between  NaOH  to  HBr  is  1:1  therefore  the  moles of  NaOH  =  0.0018 moles

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3 years ago
Find the number of ibuprofen molecules in a tablet containing 200.0 mg of ibuprofen (c13h18o2). express the amount to four signi
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First let us calculate for the molar mass of ibuprofen:

Molar mass = 13 * 12 g/mol + 18 * 1 g/mol + 2 * 16 g/mol

Molar mass = 206 g/mol = 206 mg / mmol

 

Calculating for the number of moles:

moles = 200 mg / (206 mg / mmol)

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Using the Avogadros number, we calculate the number of molecules of ibuprofen:

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4 0
2 years ago
Read 2 more answers
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The correct answer is A. Charging by friction

Explanation

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4 0
3 years ago
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Answer:

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