How many atoms of each element are present in 3 formula units of (NH4)2HASO4?
5 N atoms, 45 H atoms, 4 As atoms, 18 O atoms
6 N atoms, 27 H atoms, 3 As atoms. 12 O atoms
10 N atoms, 18 H atoms, 5 As atoms. 18 O atoms
6 N atoms, 9 H atoms, 3 As atoms. 12 O atoms
formula unit of (NH4)2HAsO4 contains 2 atoms of N , 9 atoms of H , 1 atom of As ,4 atoms of O
3 formula unit of (NH4)2HAsO4 contains 6 atoms of N , 27 atoms of H , 3 atoms of As , 12 atoms of O
6 N atoms, 27 H atoms , 3 As atoms , 12 O atoms
How many atoms of each element are present in 3 formula units of (NH4)2HASO4?
8. For each of the following molecular formulas, determine how many atoms of each element are present. a. Cr(OH)3 h. Ag2SO4 b. H2C204 i. HgCl2 C. S2Cl2 j. KCIO d. (NH4)2S k. Ca3(PO4)2 e. CuBr2 1. NH4ClO3 f. LINO3 m. Mg(MnO4)2 g. PFS n. Cr2(CO3)3 9. For each of the structural formulas, write the molecular formula. o=c=0 H-C-CE 6 H-cực-H H ه I-U- - H ه f. I H CICI -0 1 II Cl-Si-si-ci 0-0-I ن I -S-O-H O-H 0--0-H...
Q31. How many hydrogen atoms are represented in each formula? a. Al(C2H3O2)3: b. NH4OH: c. CH3CH2CH2OH: d. C6H5CH2CH3: e. Fe(C2H3O2)3: Q32. Write the name and number of atoms of each element in the following compounds: a. (NH4)3PO4: b. KMnO4: c. CH3CH2CH2COOH: d. Fe2O3: e. K2CO3: f. Cu3(PO4)2: g. Na2Cr2O7: h. 10 formula units of Ca(H2PO4)2:
218 g of (NH4)2CO3 is present. how many oxygen atoms are present? how many hydrogen atoms are present? how many total atoms are present?
1. How many GRAMS of ammonium phosphate, (NH4)3PO4, are present in 2.81×1022 formula units of this compound?
(3) 3. How many grams of oxygen are present in a sample containing 5.75 x 1021 formula units of manganese (II) phosphate ? (6) 4. Determine the percent composition (by mass) for each element in ammonium dichromate, (NH4)2Cr207.
(3) 3. How many grams of oxygen are present in a sample containing 5.75 x 1021 formula units of manganese (II) phosphate ? (6) 4. Determine the percent composition (by mass) for each element in ammonium dichromate, (NH4)2Cr2O7.
How many moles of nitrogen atoms and hydrogen atoms are present in 1.4 moles of (NH4)3PO4?
3. Consider 1.00 mole of hydrogen gas, H2. How many dihydrogen molecules are present? How many hydrogen atoms are present? What is the mass of this sample? 4. Ethanol has a molecular formula of CH3CH2OH. a. What is the average mass of one molecule of ethanol? b. What is the mass of 1.000 moles of ethanol? c. What is the mass of 0.5623 moles of ethanol, CH3CH2OH? d. How many moles of are present in a 100.0 g sample of...
How many hydrogen atoms are in three formula units of ammonium benzoate, C6H5COONH4? A) 9 B) 12 B) 12 C) 15 D) 27 E) 81
4. How many moles of hydrogen atoms are needed to make in 4.45 x 1022 formula units of (NHa) PO.? Show all calculations. CANO ulob o 0.07 5. How many atoms of nitrogen are found in 6.45 grams of (NH4), PO,? Show all calculations