How many hydrogen atoms are contained in 3.64 g of PtCl2(NH3)2? O4.90 x 1022 O9.79 x 1022 О4.38 х 1022 5.79 x 1022 Oe.19 x 1022

Q: What is the mass % of sulfur in aluminum sulfate Al2(SO4)3 rounded to three significant figures?

A: Considering the atomic mass of elements present in the aluminium sulfate, we determined the molar…

Q: How many molecules of CO2 are present in 43.6 g of CO2? O 5.96 x 1023 O 4.60 x 1023 O 8.90 x 1026 O…

A: The given data contains, mass of CO2 = 43.6 g. Molar mass of CO2 = 44 g/mol.

Q: Calculate the mass in grams of 1.23×10241.23×1024 molecules of methanol. The chemical formula for…

A: Given that, the molecules of methanol= 1.23 × 1024 Now, as per Avogadro’s law: 1 mol of methanol…

Q: 3. Sodium carbonate decahydrate Na CO₂ · 10H₂0 .

A:

Q: If a sample of B10H12[N(CH3)3]2 is found to contain 7.25 · 1019 B atoms how many moles of…

A:

Q: Calculate the number of O atoms in 0.0136 g of CaSO4 2H₂O. x 10 O atoms (Enter your answer in…

A: Answer: Given data: Mass of CaSO4.2H2O m=0.0136g

Q: 2NaCl + 1 Br2 → 2 NaBr + 1 Cl2     How many moles of NaCl are there in 99 grams of NaCl?  If you…

A: a) Given, Given mass of NaCl = 99 grams b) Given, Amount of NaCl is 31 grams c) Given, Amount of…

Q: Elemental sulfur occurs as octatomic molecules, S8. What mass (g) of fluorine gas is needed to react…

A: Given- Elemental sulfur occurs as octatomic molecules, S8. 17.8 g of sulfur to form sulfur…

Q: Ethanol has a molecular formula C2H5 A sample of ethanol has a mass of 2.3 grams. The sample was…

A:

Q: The density of water is 1.00 g/mL at 4 degrees Celsius. How many water molecules are present in…

A: First of all calculate the mass of water by using given volume and density of water. Then calculate…

Q: Consider the following reaction: 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) If 3.60 g NH3 and 5.40 g O2…

A: The answer is as follows:

Q: How many grams are there in 6.5 X 10^25 molecules of CO2?

A:

Q: How many molecules are there in 0.500 moles of sugar, CgH1206? 90 molecules G 3.01 x 10 23 molecules…

A: Given : Moles of sugar = 0.500 mol.

Q: How many molecules are in 4.83×1020 H2O2?   I don't quite understand how to do these calculations. I…

A: Note: Hey there! Thank you for posting the question. Since the unit is not given, we have taken…

Q: The mole is defined as the number of atoms in exactly 12 gg of carbon-12. The mole equals…

A: Avogadro number is the unit used for 1 mole of chemical substance. It is applied to convert the…

Q: Can someone please help me out on this one on what to put on the boxes . I’m unsure on what my…

A:

Q: 2XO3(g) → 2XO2(g) + O2(g) a. In the box on the right, draw the content of the sample after the…

A: The balanced chemical equation shows the relationship between the number of moles of reactants and…

Q: Calculate the mass in grams of 6.12 mole Cu(NO3)2.

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: How many total Cl atoms are in 5.00 g FeCl3?

A: Given that : The mass of FeCl3 = 5.00 g The molar mass of FeCl3 is 162.2 g/mol.

Q: How many moles of H20 can be formed from 6.62 x 10 atoms of NH3 from the following equation? 4 NH,…

A: One mole of any chemical substance contains Avogadro’s number or Avogadro’s constant of atoms in it.…

Q: Given 70 g of CI2, how many particles of Br2 is produced? Cl2 + 2KB → 2KCI + Br2 O 6.02 x 1023…

A: First calculate moles of Cl2. Then use mol to mol ratio to calculate moles of Br2 and use relation…

Q: Calculate the number of moles of chlorine present in 120  g g of chlorine gas.

A:

Q: How many molecules of SO2 are in 15.5 g of SO2? 1.46 x 1023 molecules 9.33 x 1024 molecules 2.49 x…

A: To solve these problems, we need to use some fundamental concepts from chemistry, specifically molar…

Q: How many moles of H2O can be formed from 1.60 × 1023 molecules of NH; from the following equation? 4…

A:

Q: What is the mass in grams of 5.00 x 10¹2 H₂O molecules?

A:

Q: Which of the following has the smallest mass? I. 18 g H2O II. 1.0 × 1024 H2O molecules III. 0.50…

A: In the above question different expression for measuring the mass are provided. These expressions…

Q: What is the mass in grams of 7.00 × 10²⁵ molecules of I₂?

A:

Q: Nitric acid is used in the production of fertilizer as well as nitroglycerin.  Convert 2.9 x 1021…

A: Since, we know that ; 1 mol of nitric acid contains 6.022 × 1023 molecules. So,  2.9 × 1021…

Q: Suppose 7.60 g  of CH4 is allowed to burn in the presence of 16.90 g  of oxygen.…

A: The required balanced equation is given below.

Q: 37 x 1019 molecules CH3NH2 contains how many moles of carbon?  CH3NH2 (g) +   O2 (g) →   CO2 (g) +…

A: Since given molecular formula of compound is CH3NH2 which shows that it has one caron atom or one…

Q: Elemental phosphorus occurs as tetratomic molecules, P4. What mass of chlorine gas is needed to…

A: Given that  Elemental phosphorus occurs as tetratomic molecules, P4 The mass of chlorine gas is…

Q: What is the mass in grams of 5.57 × 10¹⁵ molecules of SO₂?

A: We know that , 1 mole = 6.023x1023molecules/atoms/ions.1 mole = molar mass of molecule .6.023x1023…

Q: Lithium faces an increasing demand since the alkali metal is a key component in a lithium- ion…

A: Given  Number of moles of lithium = 5.40 mol we have to calculate the weight of lithium. Molar mass…

Q: A balloon filled with neon gas, Ne, contains 9.870 x 1025 atoms. Use the molar mass of neon, 20.18…

A: Given,number of atoms of neon ( Ne ) gas = 9.870 x 1025 atomsmolar mass of Ne = 20.18 g/mol

Q: 2Na + Cl2 → 2NaCl. If I want to make 100.0 g of salt, how much elemental chlorine would I need?

A: First convert mass into molar mass  Then use mole-mole relationship  After getting mole of  Cl2 then…

Q: 4. How many moles of water are present in a 20.00 gram sample of lithium permanganate, LiMnO4-3H2O?

A: by using mole concept we easily determine the mole of element are present in reactent and products.

Q: Consider a 214.6 g sample of the compound manganese(IV) perchlorate. Using the formula Mn(ClO₄)₄ (MM…

A: The mass of the sample of the compound manganese(IV) perchlorate is = 214.6 g The molar mass of…

Q: When 145 g of MnCl₂ × nH₂O is heated, 92 g of the anhydrous compound is obtained. Find the number n…

A: Here n is number of moles of H2O, given that the mass of water = 92g

Q: Calculate the molar mass of lead(II) nitrate, Pb(NO3)2(s)

A: The molar mass is the sum of masses of all the atoms present in compound.

Q: How many sodium ions are present in 20.0 mL of 0.10 M Na,S? A. 0.002 В. О.004 С. 1.20 х 1021 D. 2.41…

A: Given  Volume = 20 mL               = 20 × 10-3 Liter           ( 1 mL = 10-3  Liter )…

Q: How many individual molecules of Mg(OH)2 are in 5.8 g of Mg(OH)2?

A: Mass of Mg(OH)2=5.8gmolar mass of Mg(OH)2=58.3g/molnumber of molecules=?

Q: Calculate the mass in grams of aluminum iodide (AlI3) when 23.40 g of aluminum (Al) reacted…

A: Given, 2Al + 3I2 →2AlI3 Mass of Al reacts = 23.40 g Mass of AlI3 = ? Note:  Atomic mass of aluminium…

Q: Calculate the number of moles in 0.48 g of copper. O 0.033 mol O 1.3 × 102 mol O 7.6 x 10-3 mol O…

A: The objective of the question is to calculate the moles of copper.

Q: A vial contains 4.17 x 1023 molecules of an unknown organic compound.  How many moles (3 sf) of this…

A: given, the unknown organic compound contains " 4.17 x 1023 " molecules.

Q: N2(g) + 3H2(g) → 2NH3(g) What mass of ammonia (formula: NH3), in grams, would be produced if 525 mg…

A: Balanced chemical equation is N2(g) + 3H2(g) → 2NH3(g)Given: Mass of H2 reacted = 525 mg = 0.525 g…

Q: What chemical property of potassium chlorate did you use to design a procedure to determine the…

A: Interpretation-  Tell that chemical property of potassium chlorate which we use to design a…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".