How many grams of sodium are contained in 118.59 grams of Na2SO3 ?

Q: determine the composition of  the following compounds: MgCl2,SiO2,(NH4)2S?

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Q: 8. How many oxygen atoms are contained in 5.25 g of NO2 gas?

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Q: How many moles of water are present in 75.0 g of H20?

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: How many moles are contained in 13.8 g of BaCl2 • 2 H2O?

A: Formula to calculate the number of moles of a substance is as follows: Number of moles = mass of a…

Q: Assuming an unlimited amount of phosphorous (P4), how many grams of Mg are needed in order to…

A: Given, Magnesium is reacting with P4. How many grams of Mg is required to produce 1200.0g of Mg3P2 ?

Q: many molecules were used

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Q: How many bromine atoms are present in 35.2 g of CH2B12?

A: Formula to calculate the number of atoms is as follows:- Number of atoms=Number of molecules×Number…

Q: how many molecules of water are present in 75.0 g of H20?

A: 1 mole of water that is 18 g contains 6.022 * 1023 molecules.

Q: What is the mass percentage of C in codeine, C₁₈H₂₁NO₃? Provide an answer to two decimal places.

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Q: A sample is found to contain 66.8% NaHCO3 by mass. What is the mass of NaHCO3 in 4.25g of the…

A: Mass percent :- The mass of a substance present in 100 grams of sample is called its mass percent .…

Q: What is the molar mass of N2O4? Na2SO4? C6H10O2?

A: 1. Molar mass is a quantitative method to calculate the total mass of all the atoms associated for…

Q: How many grams of manganese(II) hydroxide contain 2.80 grams of Mn2+?

A: The formula for manganese hydroxide is Mn(OH)2  The molar mass of Mn = 54.93g/mol The molar mass of…

Q: How many grams of chlorine are present in 45.0 g of CCl4?

A: Answer:- This question is answered by using the simple concept of calculation of mass of any element…

Q: If the decomposition of a sample of KClO3 produces 3.29 g of  O2, what was the mass (g) of the…

A: Write balanced equation

Q: How many grams of tin are in 10.44 grams of an (oh)2 .the molar mass of an (oh)2 is 152.63g/mol

A: Answer:mass of Sn(OH)2 = 10.44 gmass of tin (Sn) = ?Note: Molar mass of Sn(OH)2 = 152.73 g/molMolar…

Q: If you had 3.6 moles of Ca(OH)2, how many grams would you expect to have? And How many moles are in…

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Q: Calculate the number of grams of sodium in 2.20 g of each sodium-containing food additive.

A: Sodium benzoate NaC7H5O2 Number of moles of a substance can be expressed as: Given mass of sodium…

Q: Determine the number of nitrate ions in 177 g Mg(NO3)2.

A: Mole is defined as weight of substance divide by it's molar mass.…

Q: How many grams of chromium are in 22.1 g of K2Cr207?

A: Given,  Mass of K2Cr2O7 = 22.1 g  Gram molar mass of K2Cr2O7 = 294.185 g/mol  The formula of number…

Q: Holy many moles of CO2 are contained in 42.0 x 1024 molecules of CO2?

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Q: 30 How many grams of Mo(SO3)3 are in 1.60x1023 molecules of Mo(SO3)3?

A: Given, molecules of Mo(SO3)3 = 1.60*1023 Grams of Mo(SO3)3  = ? One mole on any substance contains…

Q: How many grams of Cl are in 27.3 g of CHCl3 ?

A: Given :  Mass of CHCl3 = 27.3 gm  Also, atomic mass of Cl = 35.5 gm

Q: How many grams of potassium are in 32.8g of K2CrO4?

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Q: Determine the number of nitrate ions in 179 g Mg(NO3)2.

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Q: Mass of BaCl2•nH2O (g)

A: In gaseous state the BaCl2•2H2O exists with structure

Q: How many grams of nickel(ii) acetate contain 4.37 grams of Ni2+?

A: nickel (ii) acetate = Ni(CH3COO)2 Molar mass = 176.781 g/mol Molar mass of Ni = 58.69 g/mol  Given,…

Q: How many H atoms are in 75.7 g of acetaldehyde, C2H4O?

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Q: What is the mass in grams of 8.51 moles of Al2O3?

A: According to the mole concept, one mole of any substance related as - (1) 1 mole of the Substance =…

Q: NaCl + Pb(NO3)2 ➞ 2 NaNO3 + PbCl2 How many grams of lead (II) chloride can be formed from 32.5 g…

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Q: What is the mass of Li+ in 50.25 g of Li2CO3 ?

A: The concept of stoichiometry is used to solve the given question. The moles have to be calculated…

Q: 3. How many potassium ions are contained in 5.62 g of potassium phosphate, K3PO4?

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Q: How many Na+ ions are present in 3.91 g of Na2S?

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Q: How many moles of water, H2O, are present in 75.0 g of H2O?

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Q: How many moles of CCL4 are present in 7.65 X 1045 molecules of the compound? W mass of this amount…

A: Given: The number of molecules of CCl4 is 7.65×1045. The number of moles and mass of CCl4 is to be…

Q: This is the chemical formula for hexanal: CH3CH24CHO. Calculate the mass percent of hydrogen in…

A: Molecular Formula of hexanal is C6H12O  And Molecular weight of hexanal is 100.1568 g/mol  Complete…

Q: How many moles of Sodium thiosulfate, Na2S2O3, are present in 31.7 g of Sodium thiosulfate?

A: A numerical problem based on mole concept that is to be accomplished.

Q: 2. If 2.500 g of Na2CO3 is used in the reaction, calculate the theoretical yield of NaCl.

A: Na2CO3 + HCl -----------> NaCl + H2CO3 1 mole of Na2CO3 to 1 mole of NaCl Given :  Weight of…

Q: What is the theoretical yield of SO3SO3 produced by 2.02 gg of SS? Express your answer numerically…

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Q: How many grams of magnesium oxide contain 2.37 grams of Mg2+

A: The molecular formula of magnesium oxide is MgO. It states that one molecule of magnesium oxide…

Q: How many moles of Sodium thiosulfate, Na2S2O3, are present in 31.7 g of Sodium thiosulfate.

A: The number of moles of a substance is the mass of that substance upon its molar mass.