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Author Archives: Anonymous

Which of the following is a strong Arrhenius acid?  

Which of the following is a strong Arrhenius acid?  

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How many moles of KCl are present in 95.3 mL of 2.10 M KCl? …

How many moles of KCl are present in 95.3 mL of 2.10 M KCl?    

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Water can be formed according to the equation:   2H2 (g) + O…

Water can be formed according to the equation:   2H2 (g) + O2 (g) → 2H2O (g)        If 8.0 L of hydrogen gas (H2) is reacted at STP, exactly how many liters of oxygen (O2) at STP would be needed to allow the reaction to complete? 1 mol = 22.4 L (at STP)

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A solution with a [H+] concentration of 1.5 x 10-9 M has pH?…

A solution with a [H+] concentration of 1.5 x 10-9 M has pH? 

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What is the molarity (M) of a saline solution that contains…

What is the molarity (M) of a saline solution that contains 0.900 g sodium chloride NaCl dissolved in 100.0 mL of solution? (Molar Mass of NaCl is 58.44 g/mol)

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What volume, mL of 12 M hydrochloric acid must be diluted wi…

What volume, mL of 12 M hydrochloric acid must be diluted with distilled water  to prepare 5.0 L of 0.10 M HCl?            1L = 1000 mL

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Carbon dioxide can be formed according to the equation: 3CO(…

Carbon dioxide can be formed according to the equation: 3CO(g) + O₃(g) → 3CO₂(g) If 40.0 L of ozone gas (O₃) is reacted at STP, exactly how many liters of carbon dioxide (CO₂) at STP would be produced? 1 mol = 22.4 L (at STP)

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Convert the value of −25 °C to Kelvin and the value of 310 K…

Convert the value of −25 °C to Kelvin and the value of 310 K to Celsius temperature.

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How many valence electrons are in a magnesium (Mg) atom and…

How many valence electrons are in a magnesium (Mg) atom and a magnesium ion (Mg²⁺)?

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What volume (in liters) is occupied by 33.4 g of chlorine ga…

What volume (in liters) is occupied by 33.4 g of chlorine gas (Cl₂) at 490 K and 5320 mm Hg? R = 0.0821 atm·L/mol·K; 1 atm = 760 mm Hg; molar mass of Cl₂ = 70.9 g/mol

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