The fundamental difference between gravimetric and volumetric analysis: a gravimetric analysis involves a mass measurement as the determining measurement, while a volumetric analysis involves a volume measurement as the determining measurement, true or false?

The mass of 2.21 x 1040 atoms of iron (molar mass = 55.845 g/mol) is 2.78 x 104 g. 2.05 x 102 g 30.97 g. O 6.22 x 103g O 112 × 10-2 g.

39.7 mL of a 0.117 M Na2CO3 solution completely react with a 0.150 MHNO3 solution according to the following balanced chemical equation: Na2CO3(aq)+2HNO3(aq)→2NaNO3(aq)+CO2(g)+H2O(l) What mass (in grams) of carbon dioxide is formed? Express your answer with the appropriate units.

What is the mass of 3.5 x 10^-3 molecules of copper (II) carbonate? Use correct significant figures and units.

A student finds that they have 0.2545 g of NH4Cl, 1.1502 g of NaCl, and 1.0181 g of SiO2. Calculate the percent gained or lost during this experiment if the initial mass of the mixture was 2.5537 g.

1.) What is the molar mass for aluminum sulfate? Please use the atomic masses on the periodic table. Express your answer with the correct significant figures and units for molar mass. Mass Choices:  123.05 342.17 6.02 x 10^23 273.08 Unit Choices:  mol mol/g g g/mol 2.) How many grams are there in 5.699 moles of copper, Cu?  Express your answer with the appropriate significant figures and units.  0.08968 g/mol Cu 362.2 g/mol Cu 362.2 g Cu 0.08968 g Cu

The mass of the original mixture was 2.03g. The combined mass of the salt and the evaporating dish was 48.92g with the tare mass of the evaporating dish being 47.98g. The combined mass of the sand and watch glass and filter paper was 32.15g with the tare mass of the watch glass being 30.91g and of the filter paper being 0.28g. 1A) calculate the mass of the table salt recovered. 2A) Calculate the mass of sand recovered 3A)calculate the total mass of table salt and sand recovered.  4A)Calculate the percent table salt in recovered material. 5A) calculate the table salt in the original mixture.

When answering this problem, report the answer with the appropriate number of significant figures. When entering units, use proper abbreviated units with proper capitalization. A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 6.5 mL sample taken from car battery. About 50 mL of water is added to the sample, and then it is titrated with 43.37 mL of a standard 0.5824 molar NaOH solution. You balanced this reaction in a previous problem. How many moles of sulfuric acid are present in the original sample? Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: ______x10 ____power_____units

2 NaOH(aq) + H2C2O4 = 2H2O(s) Na2C2O4(aq) + 4 H2O(l)  Calculate the mass of H2C2O4.2H2O required in the standardization.

A student was able to separate the three components of a mixture via liquid chromatography. She obtained 1.27 g1.27 g of component A, 0.950 g0.950 g of component B, and 0.260 g0.260 g of component C. Determine the mass percent of each of the three components in the mixture.