What is the mass of Cu from 5.80 kg of CuFeS_2? What mass of CH4 occupies a volume of 250 mL at STP? At STP, what is the density of SO_2(g)? How to convert estimated mass (g) to actual mass (g)? What's the air/fuel ratio by mass ...
Calculate the number of moles of magnesium that are needed to completely react with 2.16 moles of HCl. Mg + 2HCl arrow MgCl2 + H2 If you used 0.500 g of Mg and an excess of HCl, how much hydrogen gas should be produced at STP? The reaction is: Mg + 2HCl to MgCl_2 + H...
Calculate the mass-to-mass ratio of 25.0 g of salt in 105 g of water. Water is 88.8% by mass oxygen. How many grams of water would contain 2.25 kg of oxygen? What is the molar mass of C a 3 ( P O 4 ) 2 ? a. 87.05 g/mol b. 215.20 g/mol c. 309.97 g/mol d. 430.39 ...
Polymers are all around us, a fact that we cannot deny. Polymers are used by everyone of all ages. Man has used natural polymers throughout history, but it is only in the last 60 years that we have been able to make our own synthetic polymers. Polymers have been used vastly in many ...
SY-O010 China Medical dialysis powder for dialysis machine dry dialysis powder bicarbonate Specification of dialysis powder : Dialysis powder A: Mixing ratio: A:B: H2O=1:1.225:32.775 Performance:Content per Liter (anhydrous substance) NaCl: 210.7g KCl...
It has been shown that cells grown in the presence of high CO2 have a lower PSI/PSII ratio compared to air-grown cells [51]. Cells grown at high CO2 concentrations therefore mimic cells exposed to short (up to 6 h) high light treatment [52]. Cells exposed to 500 μmol photons m−...
biomolecules Review What Is Parvalbumin for? Eugene A. Permyakov 1,* and Vladimir N. Uversky 1,2,* 1 Institute for Biological Instrumentation of the Russian Academy of Sciences, Federal Research Center 'Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences', ...
Of these tested substances, NaCl, KCl, glucose, sucrose, citric acid, NaH2PO4, CaSO4, Cr(VI), NaIO4, CaCl2, CuCl2, KI and MgCl2 exhibited lower fluorescence response as compared to BH, while SDS, isatin and FeCl2 had a little obvious effect on the fluorescence recovery ratio (I-I0)/I...
Briefly, 5 u l of undiluted first RT-PCR product was added to a reaction mixture consisting of 3 u l of 25mM MgCl2, 2 u l of 10mM dNTPs, 0.5 u l of Taq Polymerase (5U/ul), 5 u l of 10X Taq buffer, 1 u l of each type specific primers P[1], P[5] and P[11] and an...
However, the ratios are not exactly 1.8 but are generally higher, which may mean that there are traces of RNA present in the sample since the expected value for RNA is around 2.0. Finally, the purity check regarding the A260/230 ratio is significantly lower than the expected 1.8 for …...