Which element comprising Ma(OH)2 has the highest percentage by mass?

Q: How many grams of tungsten(VI) oxide, and how many grams of hydrogen must you start with to prepare…

A:

Q: Determine the mass percentage of hydrogen in CH4  and ‍C2H6.

A:

Q: A metal (M) forms an oxide with the formula M2O. If the oxide contains 16.99% O by mass, what is the…

A: The given data contains, mass of Oxygen = 16.99 g. Thus mass of M= 100-16.99 = 83.01 g.

Q: Which has the larger percent by mass of sulfur, H 2 S O 3 or H 2 S 2 O 8 ?

A: Molar mass of H2SO3=? Molar mass of H2SO3=(Number of H-atom×mass of H-atom)+ +(Number of…

Q: Dolomite is a carbonate of magnesium and calcium. Analysis shows that 7.81 g of dolomite contains…

A: The given data contains, mass of dolomite = 7.81 g. mass of calcium = 1.70 g

Q: Which titanium-containing mineral, rutile (Ti O 2 ) orilmenite (FeTi O 3 ), has the larger…

A:

Q: What is the mass percentage of oxygen in phosphorus acid (H3PO3)? O 62.2 % 42.8 % 58.5 % 82.0 % 37.8…

A: Mass percentage of any element can be calculated by: Mass percentage=Mass of element in the…

Q: What is the % molecular mass of Iron in Fe2S3?

A: The percent mass of an element in a compound can be calculated by using the following formula:

Q: Over the years, the thermite reaction has been used for welding railroad rails, in Fez Os (8)+2A1(s)…

A:

Q: 2. Balance the following equations (in the formation of heavier elements). a.*He +He - Be b. “He +n…

A: Given nuclear equations are :  a). 4He + 4He -----------> Be  b). 4He + n -------------> 4He…

Q: Determine the percent by mass platinum in cisplatin, PtCl2(NH3)2. O a. 0.650% O b. 58.5% O c. 65.0%…

A:

Q: Calculate the mass percentage of carbon in a mixture that contains 244 grams of potassium carbonate…

A: Molar mass of K2CO3 = 138 g/mol Molar mass of citric acid = 192 g/mol

Q: How many atoms of O are found in 1.00 x 10 2 g of K 2Cr 2O 7 ?

A: Number of atoms of Oxygen present in the given compound can be calculated as -

Q: The active ingredient in baking soda is NaHCO3. How many grams of NaHCO3 are needed to provide 2.15…

A: The active ingredient in baking soda is NaHCO3.  One atom of NaHCO3. contains = 3 atoms of O. or, 1…

Q: Determine the percent by mass platinum in cisplatin, PtCl2(NH3)2. O a. 58.5% O b.0.650% C. 65.0% O…

A: Given,  Cisplatin, PtCl2(NH3)2

Q: Calculate the percentage of carbon, hydrogen, and oxygen (by mass) in C12H22O11.

A: Each substance/molecule gets formed by combining some element's atom with certain proportion. The…

Q: What is the mass percentage of O in C,H,O,? 42.051 % C 8. 9. +/- x 100 3. 2. 4. 7,

A: Given: C3H8O2

Q: How do I calculate the theoretical mass percent of barium in a sample of BaCl2*2H2O?

A: Generally, the %mass is determined by dividing the species mass with total mass of sample which then…

Q: What is the mass ratio of Na to S in Sodium Sulfide?

A: Na oxidation state is +1 and S oxidation state is -2 when they both combines together they form Na2S…

Q: Calculate the percentage composition for BF3. Mass percentage of boron %3D Mass percentage of…

A:

Q: Determine the Average Atomic Mass of the mixtures of Hydrogen isotopes. 99% 'H, 0.8% ²H, and 0.2% 'H

A: Answer is explained below.

Q: When 0.210 g of iron (atomic weight = 55.85 g/mol) is burned, 0.341 g of iron oxide is obtained.…

A: The symbol for iron is Fe The symbol for oxygen is O The molar mass of Fe is 55.85g/mol The molar…

Q: What is the alumina content in weight % of the garnet with Al as the only 3+ cation has Mg2.508…

A: It is given that Al and Mg2.508Fe0.492 are the part of mineral. The oxidation state of Al in the…

Q: What is the mass in grams of 2.00 × 105 atoms of naturally occurring neon?

A: Given : Number of atoms of neon i.e Ne = 2.00 X 105 atoms.

Q: Calculate the percentege mass in KMnO4. [Relative Atomic masses of: K= 39, Mn= 55 and O= 16]

A: Consider the given relative mass of the atoms present in KMnO4 is as follows; K = 39, Mn = 55 and O…

Q: What is the percentage of nitrogen, by mass, in calciumnitrate?(a) 8.54% (b) 17.1% (c) 13.7% (d)…

A: Calcium nitrate is a compound of formula CaNO32. One mole of calcium nitrate contains two moles of…

Q: You have 3.31 L of water that contains 25 mg/L of PO43-. What is the total amount of phosphate in…

A: • The values provided in the question are:-    i) Density of phosphate ion solution,d  = 25 mg/L…

Q: If the chemical reaction in question #3 only had a 75% yield, then how many grams of nitrogen gas…

A: Hydrogen gas reacts with nitrogen gas to form ammonia. The equation for the balanced chemical…

Q: What is the mass percent of oxygen in water: 33.3% 5.60% 88.8% O 11.2%

A:

Q: what is the mass percentage of water in Zn(NO3)2*6H2O?

A: Mass percentage of water = Mass of waterMass of Zn(NO3)2.6H2Ox100There are total six water molecule…

Q: What is the mass percentage of O in C3H,O,?

A: The mass percentage of an element is a one of the way to express the amount of element in the…

Q: What is the molar mass of the sodium alum salt, KAl(SO4)2 •12H2O?

A:

Q: SnF2 is used as a tool against dental caries, because when interacting with the hydroxyapatite…

A: Mass content of Tin in Sn2(PO4)OH = 67.95 %

Q: How much does 2.1 moles of calcium hydroxide weigh in grams?

A:

Q: What is the molar mass of hydrogen (H 2 )? Atomic mass of hydrogen atom is 1. O 2 g O 2 kg O 2 g/mol…

A: In this question, we will determine the molar mass of Hydrogen gas ( H2 ). How we can determine the…

Q: percentage of mass of Cl in the sulfate salt [Ni(H2O)4Cl2+]?

A:

Q: What is the mass percentage of oxygen in the compound C 6H 60 8? g? O 62 % O 72% O 6.2% O 58% O 76%

A: We can solve this problem by using the following equation Mass % of the element= (mass of…

Q: O 2.4 g of carbon-1 O 1.2 g of carbon-1

A: Given The two moles of a substance:

Q: 10) A patient is to be given 2 litres of 0.9% sodium chloride via intravenous infusion over a 24…

A: From given concentration of sodium chloride we can calculate the millimoles of sodium.

Q: A rock is 6.5% by mass fayalite (Fe2SiO4), 14.2% by mass forsterite (Mg2SiO4), and the remainder…

A: In this question given: Fe2SiO4- Fayalite has 6.5% and 14.2% by mass forsterite, remaining is 79.3%…

Q: A rock is 17.5% by mass fayalite (Fe2SiO4), 17.6% by mass forsterite (Mg2SiO4), and the remainder…

A: Answer: First of all we will calculate the mass of each element in fayalite, frosterite and silicon…

Q: 8) 3.57g of Lithium Carbonate were produced produced, how many grams of Magnesium Nitride were as…

A: From the given questions, it seems that the reaction between lithium nitride and magnesium carbonate…

Q: Uranium (VI) fluoride (UFe) can be used for the enrichment uranium. What is the elemental…

A:

Q: What is the mass, in grams, of (a) 6.33 mol of NaHCO3 and(b) 3.0 * 10-5 mol of sulfuric acid?

A: (a) formula weight of NaHCO3 = 84.0 amu using 1 mol NaHCO3  = 84.0 g NaHCO3

Q: What would be the mass, in kilograms, of a block of graphite consisting of 1.55 x 1026 carbon atoms?

A:

Q: 4 g of Y reacts completely with oxygen. The following equation (ii) represents the reaction. 4 g Y…

A: From now onwards, please, post the question in English only. We have to predict the mass of product…

Q: What is the mass percent of aluminum in Al(NO3)3 • 9H2O?

A: The compound given is Al(NO3)3•9H2O.