A particular beer is 6.50 % ethanol by volume (C₂H₆O). If a single bottle of beer contain 750.0 mL of beer, what mass, in g of ethanol (C₂H₆O), is present in the bottle? The density of ethanol is 0.789g ethanol/mL ethanol

A chemist prepares a solution of silver perchlorate (AgClO) by measuring out 440. g of silver perchlorate into a 100. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's silver perchlorate solution. Round your answer to 3 significant digits. Ú mol/L x10 X

Calculate the following to the proper significant figures:  The molecular mass of iron(II) hydroxide.  The number of moles in 145g of MgCl2 The volume of 25.0g of steam at STP(steam is gaseous water)  The concentration of a solution of table salt (NaCl) if 12g is dissolved in 1.5L of water

In the "Methodé Champenoise," grape juice is fermented in a wine bottle to produce sparkling wine. The reaction is )) C6H1206(aq) → 2C2H50H(aq) + 2C02(g) Fermentation of 750. mL of grape juice (density = 1.0 g/cm3) is allowed to take place in a bottle with a total volume of 825. mL until 12.5% by volume is ethanol (C,H;OH). Assuming that the Co, is insoluble in H,0 (actually a wrong assumption), what would be the pressure of CO, inside the wine bottle at 25°C? (The density of ethanol is 0.79 g/cm3)

A chemist prepares a solution of magnesium fluoride (MgF, by measuring out 0.032 umol of magnesium fluoride into a 450. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in umol/L of the chemist's magnesium fluoride solution. Be sure your answer hås the correct number of significant digits, u mol L

A solution of CaCl2CaCl2 in water forms a mixture that is 38.5%38.5% calcium chloride by mass. If the total mass of the mixture is 117.9 g,117.9 g, what masses of CaCl2CaCl2 and water were used?

A chemistry student must write down in her lab notebook the concentration of a solution of potassium chloride. The concentration of a solution equals the mass of what's dissolved divided by the total volume of the solution. Here's how the student prepared the solution: • The label on the graduated cylinder says: empty weight: 1.55 g • She put some solid potassium chloride into the graduated cylinder and weighed it. With the potassium chloride added, the cylinder weighed 31.436 g. • She added water to the graduated cylinder and dissolved the potassium chloride completely. Then she read the total volume of the solution from the markings on the graduated cylinder. The total volume of the solution was 166.4 mL. What concentration should the student write down in her lab notebook? Be sure your answer has the correct number of significant digits. -1 g.mL x10 × Ś

What is the molar volume of solid quartz, SiO2?(density =2.65g/cm3) (molar volume is the volume occupied by one mole)

A chemist prepares a solution of silver nitrate (AgNO3) by measuring out 121. g of silver nitrate into a 300. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's silver nitrate solution. Be sure your answer has the correct number of significant digits. Ú mol/L x10 X

A particular beer is 6.50 (C₂H₆O). If a single bottle of beer contains 750ml of beer , what mass, in g of ethanol (C₂H₆O), is present in the bottle? The density of ethanol is 0.789 g ethanol/ mL ethanol .