General Chemistry Answers

Using the equation C12H22O11 + H2O > C6H12O6 + C6H12O6 HOW MANY MOL OF FRUCTOSE CAN BE CREATED FROM 76 MOL OF SUCROSE?

Determining the specific heat of lead :​

a- A 150.0-g sample of lead is heated to the temperature of boiling water (100.0°C).​

b- A 50.0-g sample of water is added to a thermally isolated beaker, and its temperature is found to be 22.0°C.​

c- The hot lead is dumped into cold water, and the final lead-water mixture has a temperature of 28.8°C.

A 0.20 ml CO2 bubble in a cake batter is at 27°C. In the oven it gets heated to 177°C. What is its new volume?

Determine the number of equivalents per mole for each of the following:

a. Ba(OH)2 -> H2O b. Mg(HSO )2 → SO, c. H,SO - Baso,

d. HYPO - HPO e. H,0* → H2O f. Ca,(AsO2)2 → H.AsO

A 1.000 g sample of pure oxalic acid dihydrate, H2C204 2H20, acts as a diprotic acid when

titrated with 44.51 mL of aqueous sodium hydroxide. Calculate the normality of the sodium

hydroxide solution

Simon

If 33 grams of iron (II) chloride reacts with 56 grams of sodium phosphate, what is the limiting reagent? How much sodium chloride can be formed? write your answer in one decimal place

example, 18.5 g of sample.

The energy densities of various types of coal are listed below. Anthracite 35 kJ/g Subbituminous 31 kJ/g

Bituminous 28 kJ/g Lignite 26 kJ/g

An unknown sample of one of these coals is burned in an apparatus with a calorimeter constant of 1.3 kJ/°C. When a

0.367-g sample is used, the temperature change is 8.75°C. Which type of coal is the sample?

How much thermal energy is required to heat all of the water in a swimming pool by 1°C if the dimensions are 4 ft deep

by 20 ft wide by 75 ft long? Report your result in megajoules.

Assuming that the sample is 100g, what is the mass in grams of Lead given that its percent composition is 70.19% Pb, 21.67% O, and 8.14% C?

Which pair of molecular formula and empirical formula is CORRECT?

molecular formula empirical formula

A. AsO₅ AsO₃

B. SO₂ S₂O₄

C. C₃H₆ CH₃

D. C₆H₁₂O₆ CH₂O